HomeMy WebLinkAbout02931 ORD - 11/14/1950E3inge$0� ) r
AN ORDINANCE^a
AUTHORIZING AND DIRECTING THE CITY MANAGER
TO EXECUTE A CONTRACT FOR AND ON BEHALF OF
THE CITY WITH J. M. DELLINGER, INC. FOR
STREET IMPROVEMENTS AND PAYING ON OLD ROBSTO'AN
ROAD FROM UP RIVER ROAD TO AGNES STREET, AS
MORE PARTICULARLY DESCRIBED IN SUCH CONTRACT,
A COPY OF WHICH IS ATTACHED HERETO AND MADE
A PART HEREOF, FOR AND IN CONSIDERATION OF THE
` CONTRACT PRICE OF $86,536.71, OF WHICH AMOUNT
$30,000 IS TO BE PAID BY THE COUNTY OF NUECES
UNDER ITS AGREEMENT WITH THE CITY OF CORPUS
CHRISTI DATED APRIL 19, 1942, $173398.93 TO
BE PAID BY ASSESSMENT AGAINST THE ABUTTING
PROPERTY OANERS AS SET FORTH IN SAID CONTRACT
AND AS PREVIOUSLY AUTHORIZED BY ORDINANCE N0.
THE BALANCE PLUS ENGINEERING AND _
CCNT GENCIFS TO BE PAID BY THE CITY; APPROPRIAT-
ING FORTY SEVEN THOUSAND SEVEN HUNDRED NINETY -
THREE AND 65/100 DOLLARS ($47,793.65) To COVER
THE CITY'S PORTION OF THE COST OF SAID IMPROVEMENTS
AND TEN PERCENT (10%) OF THE TOTAL CONTRACT PRICE
FOR ENGINEERING AND CONCINGENCIPS TO BE PAID FROM
NO. 296 IMPROVEMENT BONDS 1950 CONSTRUCTION FUND
(STREET IMPROVEMENTS) IN ACCORDANCE WITH TEE
STATEMENT OF ESTIMATE FROM THE DIRECTOR OF PUBLIC
WORKS AND THE TABULATION OF BIDS WHICH ARE ATTACH-
. ED HERETO AND MADE A PART HEREOF, AND DECLARING
AN EMERGENCY.
WHEREAS, The City of Corpus Christi did ent ,into
Y
a contract with the County of Nueces on the 19th day,. of April,
79112, concerning the improvement, repair and paving of Old
Robstown Road from UpriverRoad to Agnes Street; and
WHEREAS, The City Council of the City of Corpus Christi,
Texas, did on the 14thday of November, 1950, by duly enacted ordi..
nance, determine the necessity for and ordered the improvement of
1.•
Old Robstown Road within the limits trerein described, which descrip-
tions are here referred to and made a part hereof; and that such
improvement was ordered to be made in the manner and according to
the plans and specifications heretofore approved;Iand
WHEREAS, the duly executed notice of said ordinance has
been filed in the name of said City with the Clerk of Nueces County,
Texas, on the 14th day of November, 1950; and
WHEREAS, Said City Council of the City of Corpus
Christi, having advertised for and received bide on the construe-
tion of said improvements for the length of time and in the manner
and fora as required by the Charter of said City and the laws of
the State of Texas; and
WHEREAS, the bid of J. M. Dellinger, Inc. was the lowest
and most advantageous bid received; and
WHBHEAS, under the above mentioned contract with the
County, it is to pay $30,000 of the cost of said improvements;
and
WHMMO, $17,3989,93 of the cost is to be paid by assess-
ment against the abutting property owners, and
WHEREAS, The Director of Finance has advised this Council
that the City Treasurer of the City of Corpus Christi has on de- -
posts the necessary and proper funds which have not been appro-
priated for any other purpose, and which are available for the
payment of the Cityls portion of the cost of said improvements plus
engineering and contingencies
itOW, THEREFORE, BE IT ORDAINED BY THE CITY COUNCIL OF
THE CITY OF CORPUS CHRISTI, TEXAS3
SECTION 1. That the City Manager for and on be-
half of the City of Corpus Christi be and he is hereby
authorized and directed to execute a contract for the
construction of street improvements on Old Robstown
Road from UPrivar Road to Agnes Street with J. M. Dellinger
Inc., which contract has been awarded said J. M. Dellinger
Inc. in accordance with plans and specifications and con-
tract documents, which are made a part hereof and attached
hereto, and which documents are on file in the office of
the City Secretary of the City, and according to the bid
of said J. M. Dellinger, Ino. opened on the 7th day of
November, 1950, said bid being the most advantageous and low-
est bid to the City of Corpus Chriati, Texas; for and in
consideration of the contract price of Y86,536.71, which
amount is to be paid by assessment against the abutting
-1-
property owners, the County of Nueces and the City of
Corpus Christi as provided in said contract, all as
more particularly described in said contract.
SECTION 2. That there is hereby appropriated
out of No. 296 Improvement Bonds 1950 Construction Fund
(Street Improvements) the sum of X47,793.65, out of which
amount there is to be paid the City's portion of the
cost of such improvements in the amount of '$39,139.78
in accordance with the contract described in Section 1
hereof, the balance of said appropriation is the amount
equivalent to ten per cent (10p) of the said contract
price for such improvements, which amount is hereby ap.
propriated to cover the cost of engineering and contin-
gencies.
SECTION 3. The necessity for adequate street
Improvements and maintenance within the City limits of
the City of Corpus Christi in order to protect the general
welfare of its citizens creates a public emergency and
an imperative public necessity requiring-the suspension
of the Charter rule that no ordinance or resolution shall
be passed finally on the date of its introduction and
that such ordinance or resolution shall be read at three
several meetings of the City Council, and the Mayor having
declared that such public emergency and necessity exist,
and having requested that such Charter rule be suspended
and that this ordinance be passed finally on the date of
its introduction and take effect and be in full force and
effect from and after its passage, IT IS ACCORDINGLY SO
ORDAINED. '
PASSED AND APPROVED, this the 14th day
of November, 1959,
-no YOR
The City o Cp pus Christi
C1 y 'ecretary
APPR VED AS 0 LEGAL FORM:
y ornp
Corpus Christi, Texas
1950
TO THE L IMBERS OF TIM, CITY comICIL
Corpus Christi, Texas
Gentlemen:
For the reasons set forth in the emergency olause of the fore-,
going ordinance, a public emergency and imperative necessity exist for
the suspension of the Chartsr� rule or requiiems4t that no ordinance or
resolution shall be passed finally on the date it is introduced, and
that such ordinance or resolution shall be read at three meetings of the
City Council; I, therefore, hereby request that you suspend said Charter
rule or requirement and pass this ordinance finally on the date it is
introduced, or at the present meeting of the City Council.
Respectfully,
/ bax
ity of Corpus iristi� Taxers
The Charter rule was syspended by the following vote:
Leslie Wasserman
Jack DeForrest
Barney Cott
'
Sydney E. Herndon
_ George L. Lowman
The above ordinance tors passed
by the following vote:
Lesl;.e 4asser:aan
DeForrest
Barney
Bn Cott
Sydney B. Herndon
George L. Lowman
November 10, 1950 '
TO: THE MATH AND CITY COUSCIL
FHONn H. H. STIRHAU, DIBHCTOR OF PUBLIC WOW
Herewith is submitted 6hership rolls, shasing the noes of apparent prop-
arty owners of the ab0itig Troperty'on Old'Robwtown Road fro. tbs north
t.
boundary line of Agnes Street to the south boundary, line of Upriver Hoed,
' shoeing the number of kiont feet owned by each, the description of their
property, and the amount proposed to be assessed against each abutting
property and the real and true owners thereof. Only the cost of curb and
gutter and sidewalk abutting the property is assessed against each abutting
prey.
Total estimated cost of whole improvement
to be made. 186,538.71
Estimated amount per front foot proposed
to be assessed against each abutting prop-
erty and the real and true owner thereof,
for curb and getter. 1.55
Estimated amount per square foot proposed
to be assessed against each abutting prop-
erty and the real and tree owner thereof,
for sidewalks. 0.42
Estimated amount per front foot proposed
to be assessed against each abutting prop-
erty and the real and true owner thereof,
for curb andlotter and 41 wide aidaealk. 3.23
Total estimated amount to be assessed
against property owners for curb and gutter. 7,628.52
Total estimate amount to be assessed against
property owners for sidewalk. 9,770.111
Total Amount to be assessed, 17,398.93
Amount to be contributed by Nauss County, 300000.oO
Total amount to be paid by the City of
Corpus Christi. 39,139.78
H. H. Stirmen
Director of Public Works
Approved
City Manager
PHEi.7KUW PAVING ASSESSMENT
OLD BqBsm mil? from AMS STA.lM TO UFAl:Vf3't ROAD
Pavement 0" Caliche Base, 2A Hot Amphaltie Surface Contractor
J U- I)Ai��,BFy Us*
Contract Date 40 ft. face of curb to face of curb Ft... Roadway
Curb cost per lineal foot Z.Z Nom Paving rate per front foot
Sidewalk cost per sq. foot O,h2 1.68 Sidewalk rate per front foot
Property Owner
Name of Addition
Block
Number
Lot
Number
Property
Frontage
Paving
Cost
Sidewalk
Lin. Ft.
Sidewalk
Cost
Curb Cr Gutter
Lin. Ft.
Curb &
Gutter Coat
Total
Amount
rex =Sex R.R. (if)
T.C.Russol Farm B1
19
100
84
ltao 2
46
71.30
21241
3. Franklin Plat Jr. (W)
n
19
147.$
147.9
248.47
147.9
229.25
477:71
&U ES
ILL
D R I V
A
3uaranty Title & Trust 4+)
-
19
43.58
43-58
73.21
43.5
67.5
10-71
3. S.:. Price (R)
Olen Royal
2
20
42.07
42.07
70.66
4?- 01
65.21
135.$!
VI C
TORY
DRIVE
3. A. dehaeon (W)
°
3
1$
71.51
71.51
120,14
71.53
UOA
230.91
L. R: Brown (1S)
n
3
1
68.64
68.a
115.32
68.61
106.39
221.7:
1,x E
B R T Y
D R I V
H
.. S: Cartwright (�}
1
1
99.84
99. 8h
167.73
99.81
15h-75
322.41
S0 .
Ax ET
D R I V
9
kdl Krejci (W)
Emil Krejki Tract
_
_ _ _ _
1!d) ---
140
235.20
1W
217*00
452.0
Derward A. SteAiam. ty)
*
214.97
214.9
361:15
214-91
333.2
694.3.'
$
SJOx
LANE
Ray Paterson (W)
Saxet 11ts. #2
1
$
196.68
196.68
330.42
127
196.85
527.2
Sohn $olloaa (H')
"
1
1
105.9
705.9
177.91
105.9
`
164,
342.0
S
13 )3Y
&xV8
N. E. Harveson (t)
K
2
1
731.1
220.40
131.
203.3
423.7)
Hal U. Saith+ere W
°
2
28
133.21
133•
223.79
133.2
206.4
430.2
Public Works Dept., Corpus Christi, Texas
Er,aingrit a� ,.-L,:�raios.- Compiled Checked
FR&Tfffa C PAVING ASSESSMENT
OLD RObSTMH MAD from "Imm smwt W) 11PLWS t ROAD
Pavement Ss CaUohe Raw, 2" not Aaghsaltic Surface
Contract Date
Curb cost per lineal foot '655
Sidewalk cost per sq. foot 0-1.9
.r H.- W*14nEw' Inc. Contractor
4C M' face tit curb to faro of curb Ft.. Roadway
Noft Paving rate per front foot
1�a Sidewalk rate per front foot
Property Owner
Name of Addition
Block
Number
Lot
Number
Property
Frontage
Paving
Cost
Sidewalk
Lin. Ft.
Sidewalk
Cost
Curb&Gutter
Lim Ft.
Curb &
Gutter Cosl
Total
Amount
BAB
TLETT
DRIVE
T
Unnia b. Will net. (W)
Saaot fits. #2
8
1
156832
356.32
262.62
156-32
2429,30
504.92
Zamgelioe Garse ?)
Wdwin 3 .acre Tr
tract 4 A5
210
230
352.80
210
325.50
678:30
Siizabeth ?tarion )
'
It
Tract 3
105
105
176.40
20
162175
33945
L Dorsogm (
a
Tralct 2
105
1%
17640
105
162 ;75
339.3+
fagagila Petroleas� Co, (W
°
Tract 1
17455
92-
154:56
88
13640
290,96
TOTAL$
2,147.81
3,40842
2*036,113
3,156,01
Public Works Dept., Corpus Christi, Texas
Compiled Checked
PAVING ASSESSMENT
"MMM TnAn from
Pavement 81 Ce #ehe Ram 2- Oct Asphtat&c Surface Contractor
Contract Date 40 fti feee of erirb brace of garb Ft.. Roadway
Curb cost per lineal foot 1.55 hibin Paving rate per front foot
Sidewalk cost per sq. foot r. t .. t-AH Sidewalk rate per front faot
Property Owner
Name of Addition
Block
Number
Lot
Number
Property
Frontage
Paving
Cost
Sidewalk
Lin- Ft
Sidewalk
Cost
Curb&Gutter
Lin. Ft
Curb &
Gutter Cost
Total
Amount
Tex*alex R. R• 4414)
rat
HiUcre Uc.Traa
a
100
84
li 22
46
71.30
212 -4',
J. W. Johnu t9)
w
"
13
102.9
102.9
172.87
102.9
159.
'
a . E. Diner (E)
"
12 & 11
222.58
222.5
373.93
M.58
345.00
•
J. V. i -Ohnim n (E)
"
3D
69.34
69.
116.49
69-31
lo7.48
223.97
W. T. adlieia (E)
"
8 & 9
151.117.
151..4
254.37
151.4
234.69
489:9
H. 0. 9tarnee (E)
s
7 & Part
of 6
95,20
95.20
159.94
95.
147.
307.50
Mora & H. C. Grifan (R)
"
part of 6
79.99
74.
1"3638
79*96
123.98
258.3E
O.R.,H.H.& Ethyl fWlor(E
°`
5
101
101--
169.68
.1A1
156.$
326.23
J. it. Nogneria E
"
4
7141?4
11h.74
192 76
7361.
7.77,.85
370961
Eva N. Ouererro B)
"
3
136.29
136.29
228:97
136•
2U.25
4110.22
Roger Q. Hilly (L)
"
2 B
750
150
252.00
150
232;51)
484.50
H0. NAYLOR
0 1 BE
L18
Q.R.A.B.k 9tho1 6latylaar(R)
"
I & 2 A
273.93
273.93
460.33
273.9
!424.59
884.79
" " " " (2)
Snodgmxv 30-Acra Tract
20
20 -
33.60
20
31.00
64.60
0. Z. Haylor (E)
Bluebonnet Court
A
1
77:66
77*66
130.47
77.&
12007
250.84
J. 1s. Goode (E)
A
2
77.66
77.66
130.147
77.&
120.37
250.84
i3
j {LlIj O
q NET
DRID
C. T. HuffWA (z)
"
8
2
77.66
77-66
130.47
77-6d
120.37
250.814
L: B. 3feade (z)
"
D
1
77,66
77.66
130.47
'77.66
.18).37
259.814
C. C.`Tad. School Diat.(2)
"
401.76
674.96
4Q1.7
622.73
1,297.69
K E II d
)OD
U I V E
¢
W. A. Bratton & J.I; 1Veaito(E
111 1top Terrace
1
1
727
127
213.36
213036
It. G. Stanford (i)
1
2
60 -
57
95.76
95.76
R._6. _Stawn 15
"
6
!Public Works Dept., Corpus Christi, Texas
1'; ' ^ien Compiled Checked
'paulmigARY PAVING ASSESSMENT
OLD ROWTCXN ROAD from AGhW SMFKT i'0 IW_V
Pavement 8" Gnlicha Haratx, 9a Ant AVAW: :Hn Snrfarta J. It_ Dellinger, 1m, Contractor
Contract Date hn ft. fake of tarrh to face of curb Ft.. Roadway
Curb cost per lineal foot 1.55 arty. Paving rate per front foot
Sidewalk cost per sq. foot 0. 1.68 Sidewalk rate per front foot
Property Owner
Name of Addition
Block
Number
Lot
Number
Property
Frontage
Paving
Cost
Sidewalk
Lin. FL
Sidewalk
Cost
Curb &Gutter
Lin. Ft.
Curb &
Gutter Cost
Total
Amount
J. T. Messer (9)
Hilltop Terraoe
1
4
60
60
100.80
100.8
D. D. Berry W
1
5
• 60,
48
80.64
80.6
A. B. ?riaur W
°
1
6
6q
57
95.76
95.7,
R. A. Turner (E)
"
1
7
60
47
78.96
7829,
R. V. Oaklalg (E)
"
1
8
60
57
95.76
9541
C. E. Stoekton (6)
°
1
9
h5
35
58.80
58:8
N. Ao Thomas (9)
°
2
1
50
62
104.16
10lt.11
H. A. Gibson (8
°
2
2
60
56
94.08
94.01
Ts. E. & B. P. Elkins (t
°
2
3
74-42
74.42
125.03
125.0.
J. Lt. Shelton 10
L.A.Barnett's Subd
2
1
113.9
113.9
191935
' 313.9
176.55
367.91
C0
L 0N11.
0OUHT
Mrs. 0. W. Green (E)
°
1
1
113.9
113.9
19145
113.9
176.55
367.9+
A. Cofae (k)
Barr- lusa2er Subd.
tart of 6
50
50
8600
50
7x.50
261.51
Morris•Liedeker (5)
Part of 6
3bo
100
168.00
100
155.00
323.01
Wn. Berths iiedeker (E)
'
tut of 6
150
150
252.00
150
232.50
484.51
V. biedeker (E)
"
Part of 6
52.9
52.9•
88.87
52.9
82.10
170.8;
fable Oil & Bfg.Co. (E)
°
Part of 6
300
36
60.48
29
h4.95
105.4:
TOTAL MT SWE
3,667.9
6,162.09
2,885„4
4,472.
TOTAL i�ST 3IDs
214 .8
9.608.3212.036.13
3.1
1
FHOP&Tr (M)XRS TOTAL
2 17,39
7,81W-_7
,770.
,721. 62
7#621J.
COST TO CITY OF CORPUS
CHRISTI AS PROPER
MliEEi
Now
Cost to all other Pro
rte Omwra
17,398.93
-
Astaunt to be
Total Cost toPCiiy ooY
orpua Chriissii for
39,139.78
r
)
and Drainage
Total. Cost of Project
X3735.737
Public Works Dept., Corpus Christi, Texas
Engineering Division Compiled Checked
su
18.'
a
November 13, 1950
1949
I certify to the City Council that the money required
for the contract, agreement, obligation, or expenditure contemplated
in the above and foregoing Ordinance is in the Treasury of the City
of Corpus Christi to the credit of Fund No, 296 Improvement Bonds 1950
(Street Improvement s
Construction Fund from which it is proposed to be drawn,
and such money is not appropriated for any other purpose.
{ Director of Finance
S 63.7 BACKFILLING:
The backfilling around the outside of inlets shall commence as soon as the
concrete or masonry has been allowed to cure the required time and the forms
and shoring have been removed. Such backfill shall be placed in Layers of
not more than six (6) inches and shall be thoroughly tamped before the next
layer is installed. It is anticipa -W, that the backfilling shall be either
hand or mechanically tamped. Whichever method is used care should be exer-
cised to see that the backfill is thoroughly compacted. The material used
for the backfill shall meet the requirements of the Engineer.
S 63.8 EZASURTA4E IT
The work as provided for by this item shall be mgRpurgd @Ls each individual
structure to be built.
S 63.9 PABONT :
The payment shall be at the contract price bid for "Inlets ", for the size
specified, completed in place as shown on the Plans and in conformity with
these specifications. It -shall include and be full compensation for all
excavations, concrete, brick, mortar and metal units, for all trucking,
hauling, freight, royalties and for all labor, tools, equipment, backfilling
and other incidentals necessary to the completion of the inlets, as shown
on Plans and specified herein.
S_ha_3
p NOTICE
r THE FOLLOWING BLANK SPACES IN THE COITTRACT AND
0 *
W.
BONDS ARE NOT TO BE FILLED IN BY THE BIDDER AT
THE TIME OF SUBMITTING HIS PROPOSAL. THE CON-
TRACT AND BOND FORMS ARE SUBN4ITTED AT THIS TIME
TO FAMILIARIZE THE BIDDER WITH THE FORM OF CON-
TRACT AND BONDS WHICH THE SUCCESSFUL BIDDER WILL
BE REQUIRED TO EXECUTE.
r
AGREEMENT
THE STATE OF TEXAS j
COUNTY OF ivUCES I
MIS AGRMENT, made and entered into the day of
1950
by and between the City of Corpus Christi,
of the County of Nueces, and State of Texas•, acting through its City
Manager, thereunto duly authorized to do so, Party of the First Part,
termed. in the Contract Documents as the "Owner ", and
Party of the Second Part, termed in the Contract Documents as the
"Contractor ",
Witnesseth:
tlhereas, in consideration of the sums for the base bid as specified
in the Proposal to be paid by the Oimer to the Contractor at the time and
in the manner hereinafter providdd, the said Contractor has agreed and
does hereby agree, to furnish labor., tools, equipment and material and
to construct complete in every detail, ;Bo -wit: excavation, curb and gutter,
flexible base, surfacing and appurtenant structures along Old Robstown
Road from Upriver Road to Agnes Street,
in •ine city of Corpus
Christi, •reyas, as snow.. on the plans, ail to the satisfaction of the
Owner and in compliance with the Proposal, General Conditions of the
Agreement, Performance Bond, - Definitions, Special Provisions and Speci-
fications, and in accordance with the plans, which include all the maps,
plats, blueprints and other drawings, and printed or written explanatory
mater thereof, all of which are made a part hereof and collectively
constitute the entire contract and except for the plans, are bound here-
with and entitled "Contract Documents" and are as much a part of ':,his
Agreement as though copied verbatim herein.
AND FOR SAID CONSIDErLATION, IT IS FURTRER EARTICULARM AGi
BETWEEN TIE PARTILS OF TINTS AGREEP4j-,,NT:
1, That the Contractor agrees to begin word of construction within
ten (10) days after being notified in w-:iting so to do but shall not be
required to commence said work, until the proceddings provided by Article
1105 -B of the Revised Civil Statutes of the State of Texas, as amended
and the City Charter of the City of Corpus Christi, and all resolutions
and ordinances assassing against the propertl abutting upon said streets
and the owner thereof, and the owners of railways, and street railways
and interurbans occupying same, the portion of the cost of said improve-
ments which is to be assessed against the said owners, and theiti property
-1-
as herein provided. The Contractor agrees to prosecute said work dili-
gently and uninterruptedly after commencement, excepting as shall
otherwise be ordered in writing by the City Engineer of said City, and
shall be finished and fully completed within (working)
(c,:lendar) days thereafter, the time of beginning, rate of progress and
the time of completion being essential conditions of this contract.
In defaulting thereof the Contractor shall be liable for liquidated
damages as provided for in the Contract Documents.
2. That said work and material for the project covered bar, the
Contract Documents shall be completely installed and delivered to the
Owner within the time above stated, clear and free from any and all liens ?
claims and demands of aim hind whatever for materials, equipment, supplies,
labor,accidental death or ot:erwise. To insure prompt, faithful, suf-
ficient and complete performance to this Contract on its part, the
Contractor has attached hereto and hereby makesa part hereof a bond
satisfactory in all reslects to the Owner. Said bond in the full amount
of the contract price is to insure the faithful performance of the con-
tract under all conditions laid down by itsand Contract Documents covering
equipment furnished, labor employed, workmanship, material, time of
completion and delivery. Sc.id bond shell hold and keep Owner harmless
and free from all liens, claims, patent infiingements, liability, demands
and expenses of every kind and nature for any accident or injury to any
person or persons, or property, occasioned by or resulting from the
prosecution of the work pursuant to the terms of the contract.
3. The Contractor shall be paid for the performance of all of the:
work, as aforesaid, the unit prices set out in full in the Contractors
bid proposal, a copy of which is hereto attached and made a part of this
contract. And it is understood that payments of the said amounts, except
where otherwise provided in this contract, shall be given and received
as payments in full for all the work and material described generally
in this contract and herein stipulated to be done and furnished by the
Contractor, and said prices herein named shall be considered as including
and comprehending the completion of the whole work, heraincontracted for,
together with the payment of and for all the labor and materials and all
appliances and appurtenances and all detail work as described generally
herein. The bids herein being made for a complete cork and not for pacts
of work.
Q. All extra work not bid upon in the proposal which may be required
to be done under this contrast, shall be paid for as provided by the
specifications hereto attached.
5. Said compensation shall be paid to the said Contractor, and at
the time and in the manner, as .follows, to -wit:
(al)- If said streets, or gny part thereof, are occupied by any rail-
way, street railway, or interurban company, then such company shall pay
all cost of said improvements between and under its rails, tracks,
turnouts and switches, and two feet on each side thereof, which payments
shall be made by said companies upon written estimates of the City
Engineer, at the time or times, and in the manner provided in the
ordinance ordering the said work, and as shall be provided in the
..2-
ordinance of assessment heroinafter mentioned, The City of Corpus
Christi binds itself to pass an. ordinance in accordance with the
Charter of said City, and in accordance with the laws of the State
of Texas, including particularly Chapter 106, Page 489 of the 40th
Logis ature of the State of Texas. First called Session, Act f927,
said ace being commonly known as Nrticle 1105 -B, Rosised Cit21 Statutes
of the State of Texas, 1925, and relating to street improvements and
assessments therefor, levying a special tax for the amount of said
costs, payable by said railway,,. street railway, or interurban
company, rospoctively, upon such railway, street railway or interurban
and its reed buds, ties, rails, fixtures, rights and franchises, and
to eshmst fully its powers conferred by law to aid in and enforce
collect'_on thereof, but it is oxprossoly agreed that tha City of
Corpus Christi shall in no manner be liable to pay any part of said
cost designated to be paid by said railway, street railway, or
interurban company, but the Contractor agrees to look to said companies
and to their property entirely for the payments thereof.
(b) That the City of Corpus Christi shall pay to the Contractor
all of the cost of the construction, reconstruction, or repair of the
curbs within the intersections of said streets with other streets
and alloys; all the costs of the construction of storm sewer and
appurtonances thereto, and shall pay tb said contractor not less than
ono -tenth (1,10) of the total remaining costs of said improvements,
exclusive of the costs of tho curbs in front of the respective prop-
erties abu-Aing upon said stroct.
All payments to be made by the City to the Contractor shall be
upon the w itten estimates of the City Engineer, eighty -five percent
(85%) of which estimates shell be payable within•.the time after said
ostimatos are furnished, as provided for- '.in the attached General
Conditions, fifteen per cent (15 %) being retained and rosorved until
the completion of the work and its acceptance by the City, and no
extimates shall be given at any time, except upon such portions of
the work as has boon actually completed and upon acceptable non -
porishabla material delivoi:od to the work as hereinafter provided for
in the said General Cbnditions.
In making said estimates the City Enginec:b shall separately
estimate the amountcof worl: and labor done, chargeable against the
City of Corpus Christi, Texas, and against said railway companies, and
against the Owners of property abutting on said stroct, under the terms.,
of the contracts. Uhen the entire work hiss boon completed, and accepted
by the City, the whole amount payable by the City of Corpus Christi,
Texas shall then be paid to the Contractor, including all sums hold back
in reserve from prior estimates, under the terms hereof.
All estimates paid to the Contractbr during the progress of the
work shall be based upon the City of Corpus Christi, Texas' portion of
the cost of said paving, and no portion of tho paving certificates to
be taken by the Contractor and norcost to bo assessed against the rail-
roads of intorurbans occupying the streets shall enter into said estimate
nor shall any past of the assignable paving contificates to be issueed
to the Contractor be paid until after the paving has been eomplotod and
accepted in accordance with the terms and provisions of tho Contract.
-3-
(c) That the owners of property abutting upon said streets
named shall pay to the Contractor the whble cost of construction,
reconstruction, repairing and realigning curbs in front of their
respective property, and shall pay all of the remainder of said cost
of said improvements after deducting the amount herein specifYed to
be paid by the City of Corpus Christi, Texas, and said railway, street
railway or interurban company providing in no event that the remaining
cost of said improvements exceed nine- tenths (9/10) of tho total cost
of said improvements exclusive of cost of curbs. The amounts to be
paid by said property owners, and which may be assessed against said
abutting property and its owners, shall be in proportion as the front -
ago of the property of each owner is to thumhole frontage to bo im-
proved, in accordance with what is known as the Front Foot Plan or
rule; provided that if the application of this rule in the opinion
of said Council be unjust or unequal, or result in individual cases
in an assessment in excess of special benefits received from said
improvements, then said council shall adopt such rule of apportion- .
ment as shall effect substantial equality between said owners, con-
sidering the benefits received by and burdens imposed upon them and
their property.
That the portion of the cost of said improvement, which shall be
payable by the ownors of said abutting property, shall be paid within
twenty days after the completion of said improvement, and the acceptance
thereof by the City, either all in cash, or twenty percent (20) cash
within twenty days after the completion of said work and its acceptance
by the City, and 20% respectively, on or before one year, two years, three
years and four yoars after the completion of said work and its acceptance
by the City, with interest from day of such completion and acceptance by
the City until paid at the rate of 5% per mmum. That the amount to bo
paid by each owner of propertty abutting upon said street shall be secured
by a lion upon said property and a personal claim of liability against
the miner thereof in the manner hereinafter set forth, and to accomplish
equality and justice botween the owners of said property, and to secure
the payment of said sums, the City binds itself to pass all the nocessary
ordinances and resolutions, and to take all the necessary steps provided
by law, chaster, or by the ordinances of said City, in such cases made
and provided, that may be necessary or proper to assess upon the several
pascals of property abutting said street, the several stets payable by the
owners thereof under the terms hereof, and to pass all ordinances and
resolutions necessary and proper to fix same as a personal claim or
liability against the said miners, incompliance with law, chartor,and
with the terms of thor• said ordinance; and further agree, that in the
event that any error or invalidity shall appocs in the proceedings with
reforonco to said improvement, or in the assessment of said cost, or in
fixing any personal liability against the owners of said property, or in
any other matter or thing affecting the validity of said assessment or
claim, then the City shall pass all rosolutions or ordinances, and shhll
take all ateps necessary or allowed by law, charter, or its ordinances for
the purpose of correcting such errors or invalidities and re- assossing-
said cost against said property, and fixing said personal claim or liability
against the owners thereof; but it is expressly understood and agreed that
—4—
no assessment shall be made against any property or its owners until
after the notice and hearing provided bye law and the ordinances of
the said City and in no event shall any assessment be made against
any such property or its tumor in excess of the bcr_efits thereof in the
enchancod Value thereof, caused by shch improvement. It is expressely
agreed that said City shall not in any manner be liable to the said
Contractor for any part of the cost of said improvemonts herein
designated to be paid by ounors of abutting property, but for such
portion the Contractor shall loot; alone to the said owners and their
proportj*i and that the said City does not in any manner guarantee
the collection thereof, nor shall it become in any manner liable for the
cost of collecting the same, nor i.n onforcing the, lien thereon, but
the City agrees to do all acts, and pass all ordinances and resolutions
required and permitted by law or its chapter, for the purpose of assisting
said Contractor or assigns in collecting or enforcing the payment of
the said cost against said owners and of said lien against said property.
The City agrees that it will, upon completion and acceptance of said
improvemeats, cause to be issued to said Contractor assignable cortif-
icatc, setting forth and declaring the amount to be paid by each of said
owners and assessed against his property and the times and terms o
said payments, in accordance with this contract, It shall be sufficient
complianco heroin if said certificate shell describe lots and parcels of
property by number and block, or such other descriptions as may identify
same with roforcnco to any other fact recited, and by the none of the
apparrent owner; and if the owner is unknotm, or if the property is owned
by an estate it will be sufficient so to state the fact. Said certificate
shall provide if the sum shall not be paid, that they shall be collectible
with reasonable attornoyls fee and all costs, if same have boon incurred,
and said certificate shall bear interest from date of completion
and acceptance of said improvement by the City at the ri.:tc of 5% per
annum. Said Certificates shall provide that failure to pay the samo,
or any part - hheroof, when duo shall at the option of the holder theroof,
mature said cortificato, and the entire umpaid portion shall become duo
and payable immediately. The City shall not in any mannor be liable for
the payment of any sum mentioned in the said certificates, or for the
costs of collecting or enforcing same, but the City shall, whenever
demanded by the Contractor or holder of said certificates, fully execute
all powers conferred upon it by law, chaster or its ordinances to aid
the enforcement of the lien securring same, and the collection of the
same. But it shall not be liable in damages for any failure to collect said
certificate or onforce the lion thereon. The said certificate shall recite
that the proceedings with reference to rocking such improvements have been
regularly done in compliance with law, and that all prerequisites to the
fixing of said assessment lion against the property described therein,
and the personal liability of the owner, have boon performed and such
recitals shall be prima facie evidence of the fact so recited, and no
further proof thereof shall be required in any court. (Should it be
necessary to collect such centificatos by suit, it shall be done by the
Ccutraotor at his own and entire cost and expense.)
-5-
6. The Contractor shall not be obliged to make any of the
improvements herein mentibnod in front of qny property, which is
exempt from the enforcement of the lion for the cost of such
improvement, but shall bo entitled to omit the construction of such
improvement in front of such property, unless the owner of said
property shall first satisfactorily secure the amount which would
be assessed against the same were it not exempt.
�f. All provisions of Article 1105 -B of the Revised Civil
Statutes of the State of Texas, as amended, and all provisions of the -
Charter and Ordinances of the City relating to public improvements,
and all resolutions and ordinances passed by said Council to
effecutate said improvements 'and this contrast are here referred
to and made a part hereof.
8. This contractis executed in six (6) conterparts.
9. It is further agreed that Contractor shall furnish, prior
to final acceptance by the City of the work, a good and secure bond in
favor of the City, guaranteeing for a period of five years and the work
and materials used in construction of the pavement, and said bond
shall conform in all things to the provisions for such guaranty as
provided in " Maintenance Guaranty" clause in the " Contract
Documents" and which are a part of this agreement.
IN WITNESS 11W' OF, said pasties hereto have hereunto set their
hands and scale at Corpus Christi, Texas, the day and year first
above writton.
ATTEST: CITY OF CORPUS CHRISTI
Party of the First Part
By
City Secretary City Manager
APPROVED AS TO LEGAL FORZM
Party of the Second Part
(Contractor)
By
City Attorney TITLE
ATTEST:
519
Address
STREET WR04ENENTS
OLD ROBSTOWN ROAD °
UPRIVER ROAD TO AGNES STREET
ITEM QUAN- DESCRIPTION PRICE TOTAL
N0, TITY UNIT AND PRICE IN WORDS FIGURES AMJUNT
1 99720 Cu, For street excavation including ,
Yd, removal of concrete and disposal
Of s2rplu199 complete in plaee9
the sum of
Dollars
and Cents
322r-cu-big yard
2 17,704 Sq. For 80 compacted caliche base,
Yd, complete in place, the sum of
Dollars
and Cents
* 1,797 Ton For Hot Mix Aggregate Gravel
complete in place, the sum of
Dollars
and Cents
on
* 4 104 Ton For Hot -Mix Asphalt OA =90 ,
complete in place, the sum of
Dollars
and Cents
_ ner ton
5 7,704 L.F. For concrete a rb and gutter,
complete in place, the sum of
Dollars
and (manta
For concrete valley
complete in place,
Ler,
sum of
Dollars
and its
ner linear foo$
ITEM QUAH- DESCRIPTION PRICE TOTAL
N0, TITT UNIT AND PRICE IN WORDS FIGURES AMOUNT
7 299828 Sq. For concrete sidewalk, complete
Fto in place, the sum of
2
Dollars
and Cents
Der aOL ZP foot . .........
8
107
L.F.
For reinforced concrete storm
sewer pipe (15'0)9 complete in
place, the sum of
'
Dollars -
and Cents
-
De ar fQ21
9
7
Each
For standard 50 inlete, complete
in place, the sum of
'.
Dollars
and Cents
n ®P each
10
15
Each
For adjusting standard inlets,
complete in place9 the sum of
'
Dollars
and Cents
ner each
11
1
Each
For adjusting special inlet,
complete in place, the sum of
Dollars
and Cents
PM ea
12
123
Sq.
For concrete pant Class B 9 -
d,
complete in place,, the sum of
`
DOl,.ars
and Cents
F.
a uarl X&Zd
13
3,717
Gal,
For tack coat RC=2 9 complete
'
in place, the sum of
Dollars
and fiats
ner aaLon -
2
ITEM QUAN- DESCB.IPTION PRICE TOTAL
N0, TITY UNIT, AND PRICE IN WORDS FIGURES AMOUNT
* ALTERNATE BID
3 -A 11778- Ton For Hot -mix aggregate (shell) complete
in place, the sum of
Dollars
and Cents
ROE i
0
4 -A 123 Ton For Ho�mix asphalt OA-90 , complete
. in place, the sum of • - , _
Dollars
and Cents
-Der toII
TOTAL AMJUNT, ITEMS 1 TO 13, INCLUSIVE
TOTAL AMMUNT, ITEMS 1, 2, 5 thru 139 3 -A and 4-A
3
PERFORM GE BOND
STATE OF TEXAS
COUNTY OF NM. CES
KNOW ALL 14EN BY THOSE PRESENTS: That we,
of the City of ,County
Of , and State of , as principal, and
authorized under
the laws of the State of Texas to act as surety on bonds for principals, are
held and firmly bound unto the City of Corpus Christi, Texas, and to the sub-
contractors, workmen, laborers, mechanics and furnishers of material, as their
interest may appear, all of whom shall have the right to sue upon this bond,
in the penal sum of ($. ),
lawful currency of the United States of America, for the payment of which,
well and truly to be made, we do hereby bond ourselves, our heirs, executors,
administrators, and successors, jointly and severally and firmly by these
presents.
THE CONDITION OF THIS BOND IS SUCH THAT -- WHEREAS, The above bounden
has on the day of
19_, entered into a contract with—the City of Corpus Christi, Texas, for
furnishing all materials, equipment, labor, supervision and other accessories
necessary for the construction of certain improvements, as more particularly
designated in said Agreement and Specifications hereto attached.
NOW, TIEREFORE, If the above bounden
shall and will faithfully, perform said agreement, and shall and will in all
respects duly and faithfully observe and perform all and singular the cove-
nants, conditions and agreements in any by said contract agreed and covenanted
by the said to be observed and performed,
and according to the true intent and meaning of said Agreement and the Plans
and Specifications hereto annexed, and as well during any period of extension
of said contract that may be granted on the part of the City of Corpus Christi,
Texas, as during the original term of same, and shall well and truly pay all
subcontractors, workmen, laborers, mechanics and furnishers of material all
moneys to them owing by said for sub-
contracts, work, labor and material done and furnished for the construction
of such improvements, and everything necessary to carry out all of the terms
of the contract, for the City of Corpus Christi, Texas, then this obligation
shall be and become null and void; otherwise to remain in full force and
effect.
IN WITNESS WHEREOF, The said
has hereunto set his hand, and the said surety has caused those presents to
be executed by its duly authorized agent and officer, and its corporate
seal to be hereunto affixed at on this
day of , 19
SEAL
LTITNESS
SEAL
CONTRACTOR
ADDRESS
ATTEST:
NAME OF PERSON EXECUTING
ADDRESS
TITLE
,TITLE
MAINTENANCE BOND
THE STATE OF TEXAS I
COUNTY OF NUECES U KNOW ALL ME-14 BY THESE PRESENTS:
That
As principal, and
a corporation organized under the laws of
and as sureties, do hereby
expressly acknowledge themselves to be held and bound to pay unto the
City of Corpus Christi, a municipal corporation chartered by virtue
of a Special Act of Legislature of the State of Texas, at Corpus
Christi, Nueces County, Texas, the sum of
Dollars ($ ) for the payment of which sum well and truly
to be made unto said City of Corpus Christi, and its successors, said
principal and sureties do hereby bind themselves, their assigns, and
successors jointly and severally.
This obligation is conditioned, however, that wheroas, said
has this day entered into a written contract with the said City of
Corpus Christi to build and construct the
which contract and the plans and specifications therein mentioned
adopted by the City of Corpus Christi are hereby expressly made a
part hereof as though the name were written and embodied herein.
WHEREAS, under the plans, specifications, and contract,.it is provided
that the Contractor will maintain and keep in good repair the work here-
in cort+_•a.-;-:ed to be done and performed for a period. of ( )
years f-ora the date of acceptance, and to do all necessary backfilling
that mar = iae on account of sunken conditions in ditches, or otherwise,,
and to Flo and perform all necessary work and repair any defective condi-
tion growi*_,g out of or arising from the improper joining of the same,
or on account of any breaking of the same caused by the said Contractor,
in laying or building the same, or on account of arW. defect arising in
any of said parts of said work laid or constructed by the said Contractor,
or on account of improper excavation or backfilling;.it being understood
that the purpose of this section is to cover all defective conditions
arising by reason of defective materials, work, or labor performed by
the said Contractor, and in case the said Contractor shall fail to do
so, it is agreed that the City may do said work and supply such materials,
and charge the same against the said Contractor,, and sureties on this
obligation; and the said Contractor and sureties hereon shall be subject
to thi: liquidated damages mentioned in said contract for each day's
failure on its part to comply with the terms of the said provisions of
said contract;
NOW, THEREFORE, if the said Contractor shall keep and perform its said
agreement to maintain said work and keep the same in repair for the said
maintenance period of ( ) years, as provided, then these
presents shall be'null and void, and have no further effect, but if
default shall be made by the said Contractor in the performance of its
contract to so maintain and repair said work, then these presents shall
have full force and effect, and said City of Corpus Christi shall have
and recover from the said Contractor and its sureties damages in the
premises, as provided, and it is further understood and agreed that this
obligation shall be a continuing one against the principal and sureties
hereon, and that successive recoveries may be had hereon for successive
breaches until the full amount shall have been exhausted; and it is
further understood that the obligation herein to maintain said work shall
continue throughout said maintenance period, and the same shall not be
changed, diminished, or in any manner affected from any cause during said
time.
IN WITNESS WHEREOF, the said
has caused these presents to be executed by
and the said
When completed, the sidewalks shall be covered with approved curing mats
or 2 thicknesses of 10 to 12 ounce burlap and kept thoroughly wet for
a period of 4 days at which time covering may be removed. Other
methods of curing must meet the approval of the Engineer prior to use.
After the during is completed and before the 17alk is open for traffic
the Contractor shall remove all surplus excavation, waste concrete,
wood forms and braces and any and all surplus materials used in
construction or left over from such construction It shall be his
responsibility to dispose of any such materials a--ay from the site of
the work or as directed by the Engineer.
He shall dross and finish the area immediately adjacent to each side
of the completed walk and leave the surface in a condition that vill
not inpede the natural drainage of surface —ater towrrd the curb or
ditches. The Contractor's attention is especially directed to the
fact that excavated materials mustnot be placed in adjacent ditches,
but shall be disposed of in a manner satisfactory to the Engineer.
S 53.4 EXTRA DEPTH M.- WATION:
When bid as a separate item the following shall govern: tlhere the
total depth of excavation exceeds seven (7) inches for any appreciable
distanco, the contractor shall notify the Engineer, who shall make
measurements and calculate the number of cubic yards removed in excess
of the 7" depth. The contractor shall be entitled to compensation for
the extra material removed at the unit price bid per cubic yard for
"Extra Depth Excavation ".
S 53.5 MtSUM- LENT:
All work and accepted material as prescribed by this item gill be
mcastm ed by the square foot of surface area of completed side -alk.
S 53.6 PAYM- :T:
Payment for all •,ork performed under this specification shall be at
unit -)rice bid for "Concrete Sidewalks" or for "Extra Depth Excavation"
and shall be full compensation for all work and materials, including
expansion joint materials, and ot',er items necessary to complete the
contract.
S -53 -2
S -55 REIIOVIFG OLD STRUCTURE
" -55.1 MSCRIPTION:
.lids specification shall govern for the removing of old structure and shall
apply to the performance of all work necessary to remove all such obstructions
or installations that may be necessary to be removed for the completion of
this work, such as old curb and gutters, concrete culvert pipe, timber
culverts or old inlet or manholes, etc., that are to be removed.
S -55.2 SALVAGE.:
All material such as pipe culverts, timber; etc., which is deemed salable
by the Engineer, shall be carefully placed in neat piles along the street
right -of -way at convenient loadinf; points which will not interfere with
construction or traffic. All materials salvaged shall be the property of
the City.
All excavation made in connection With this item and all openings below
the natural ground line caused by the removal of old structures or
portions thereof shall be backfilled to the level of the orginal ground
line, unless otherwise provided on the plans, and such backfill shall be
thoroughly compacted by the use of mechanical or hand tamps and water.
S -55.3 2EASURMBNT:
The work as provided for by this item shall be measured as each individual
structure to be removed.
-55.4 PAYMENT;
The work as prescribed for in this item shall be paid for at the unit
price bid each for "Removing Old Structures ", which price shall be
_full compensation for all work, labor, tools, equipment, excavation,
backfilling, materials, and incidentals necessary to complete the work.
5 -55 -1
S.•57 MANHOLE RING AND COVER
DESCRIPTIONS
This specification shall govern for the furnishing and placing
of manhole rings and covers,
MATERIALS-
The castings for manhole rings and covers shall be as detailed on
the plans. They shall be grey -iron castings boldly filleted at
angles and the arrises shall be sharp and perfect. The castings
shall be true to pattern, form in dimensions, free from cracks,
sponginess, blow holes or other pouring faults affecting their
strength and value for the service intended. Surfaces of the
castings shall be free from burnt -on sand and shall be reasonably
smooth. Runners, risers, fins and other cast -on pieces shall'be
removed from the surfaces,
CONSTRUCTION METHODSs
The manhole rings and covers shall be carefully placed- to.lines
and grades shown on the plans or as directed by the Engineer,
MEASNREMENT
Manhole rings and covers shall be measured by the complete unit
of one ring and one cover.
PAYMENTS
Payment for manhole rings and covers will be made at the contract
unit price bid for each Manhole Ring and'Coveiq- wabh'shall bo
M117'6ompsnsation for furnishing and placing "manhole ring's "and
doveirs-and- for ell incidentals necessai7 to complete the work as
shown on plans or as directed by the Engineer,
S -57 -1
S 60 rXINFORC.m C.._'CR_Ti3 PIPE S`_ T tS
S 60,1 DESCRIFTIOU:
This spccificaion shall govern for the installation of precast reinforcod
concrete pipe storm severs of the sizes shown on plans, their connectiono
and the required excavation, bedding and backfill, all constructed in
accordance with these specifications and in conformity with the lines,'
grades, and details s'::o==n on the plans,
S60.2MAT2LIM:
.ipe (a) ,111 pipe shall conform to the Standard Specificati.ons for Rein-
forced Concrete Culvert Pipe, A,S.T.111. Designation 076 for Standard
Strength Pipe, Pipe joints sh,.11 be the tongue and groove type.
(b) In addition to the tests specified in govornLig A,S,T.M. specification,
the pipe shall be subject to inspection by the Engineer after delivery
and immediately before being laid. Sections not meeting spocificition
requirements shall be rejected, plainly marked by the Engineer, and such
s-,ctions 'shall be promptly removed from the Tito by the contractor and
replaced with acceptable pipe at his exponse,
Concrete All concrete required for co•mections, encasements, or other
details shown on the plans shall be Class "A" Concrete conforming to the
requirements of S 40 Portland Cement Concrete and pertinent special
provisions the_eto.
Mortar All mortar shall be composed of one part Portland Cement and
two parts sand, with or without the addition of hydrated lime or slaked
lime putty in an amount not exceeding ten percent of the total dr;* mix
by -eight. ?ortla.nd Cement shall bolform to the requir-,monts for Normal ,
Portland Cement, S 40 Portland Cement Concrete of t;"eso specifications,
Sand shall . conform to tYe requiromen is for Fine Aggr !;ate, S 40 Portland
Comon-:, Catcrete, except for Vzo (;xading requirement ttrich is replaced
by the following.
Retained on -�,- inch,screon 0�&
Retained on 20 mosh sieve 0 to 305
Retained on 100 mesh sieve 85 to 100;
S 60,3 COIiSTRUCTION MTI,ODS:
r. cw i_ion (a) General All excavation for storm so -ors shall be
performed at such time and'in such sequence as to present the least
interference with other items of the iiork and to_ permit installation
of to:-m se--crs for drainage of roadways at the errliest practicable
tli P,
(b) Exa:.vstion in Streets tacavation in e^isting streets or alleys shall
be prosecuted in such a Lianner as 'to result in a minimum of intc: .-ruction
to traffic,
(c) Trenches Unless otherwise specified, all storm .e•=e2?s shall be
constructed in open cut trencwcs =ilth vertical sides, All trenches shall
be sheathed and braced to tl:o extent n6cessary to :,iaiatain the sides of
the tronch in a vertical position under all conditions. Trenches adjacent
S-60-1
to railroad tracks, along streets or alleys or in any other location where
slides or cave -ins could damage or endanger adjoining property or instwl.-
lations, shall bu sheathed and braced in a manner ap-,roved by the Engineer
within t;renty -four (24) hours following, completion of each section of e
excavation. Security of tic sheathing and braci.g shall be the responsibil-
ity of the contractor, ')ut shall be subject to the approval of the
nnginoor.
The minimum width of trenc :: for Pipo Storm Sowors shall be the outsidd
diameter of the pipa plus oi:;htoen (18) inches and the maximum width shall
be the outside diamater of the pipe plus four (4) feet. The bottom of the
trench shall be o.,cavatod to the shape of an arc of a circle to provide
full support for the to +,or third of each pipe.
(d) _Unwaterine Trench No storm sewer shall be constructed or laid in
a trench in the presonce of water. All water shell b•: removed f_om the
trench sufficiently ahead of the oetrcr placing operation to :_nsuro a
dry, firm bed on which to place the sto-sm sc•,cr pipe. Tho trench shall
be maintained in an unwaterod condition until all concrete and mortar
is sot, Removal of water may bo acconr,lished by bailing, pumping, or
pumping in connection with a -;ell -point installation as the particular
situation may warrant.
(e) Romovi:ae Bxistina_ St...�ucturos ''here old masonry structures are found
atiors arm encou =torod in the excavation they sh:11, unlessothorwiso
provided, be removod for the full width of the trench and to a depth ene
foot blow the bottom of trench. Where old inlet:: or manholos are encount-
crod and no plan provision is madofor their adjustment or connection
to tho no- scorers, they shall be completely romov.d to a depth ono loot
below the bo'ctom of trench. In each case, the bottom of tronch shell be
rostcrod to grade by b- .ckfilli:.,g with selected backfill material and
compacted by the nethods providod horinaftor for selected backfill.
'.7iere the trenching oporat_.ons cut throug_i storm or sanitary se.oers -rh:Lch
are knocmto be ahandonf:d, these sowers shall be cut off flush with the
lidos of the trench and plugged with concrata in a mcn,ior satisfactory
Lo the Engiroor.
(f) _Protecting Utilities The contractor shall so conduct this =;ork
as to result in a minimum of disturbancos to existing utilities. Particular
care shall be exercised to avoid the breaking of water and gas lines.
Such lines , if brohon eha11 be :,romptly rostorod by the contractor at
his expense. Whin acti--e sanitary so-,.,or lines above the storm sewer pipe
aro cut in the t-ronching operations, termorary flumes shall be provided
across th. tronch and the linos shall be restor•;d at the contractor kb;
c%oonsc whon bachfill has progrossod be the orginal boddi g lilos of
the so-•c °s so cut,
(g) Dis:�osition of excavated 1.atorials Excavated materials, unless
required by plans for use in other construction, shall be used in the
omount renuirod, as ordinary or selected badkfill, and the surplus shall
b.,eomo the property cf the contractor to dispose of as he wiz:hos, without
injury to the City of my individual. Such surplus matorial shall be
romovad from tLo =pork promptly follclri.r :g the .domplotion of the portion of
sower involved. If the c.ntractor does not remove t;zi.s material whoa
directed by the Engineer, the Engineer shall have the right, under this
S-60 -2
contract and these spocificaLionsi- to biro ecuipment and icon to remove
the ::aterial and to deduct the cost of such removal from any e�timate
due the contractor.
(h) LI;, *irs Piue tdo pipe shall be laid in the trench until the
bedding and condition of the trench has boon approved by the Engineer.
The trench shall be free of -pater and maintained in that condition until
the pipe has been laid and mortar in the joints has attained its final
seb.
The contractor shall, at his 'wn oxpense, furnish and place in position
as directed by the Engincor,,cll the necessary batter boards for
controlling the work. The batter boards shall be of such size timber as
the Engineer directs and shall be substantially supported. The boards and
all location stakes must be protected from drainage or change of location.
The contractor shall also furnish, at his own axpense, good sound
twilled line:: for use i.-, giving linos and grades, and the necessary plummets
and graduated poles of a form approved by the Engineer.
Storm sever pipe shall be matched, fitted together and laid on the
approved bedding so that th completed storm se-or shall have a -�mootli
and uniformly grad.d flow line :nd shall conform accurately to the
grade and allignment approved by tae Engineer. Markod bottoms for
elliptically reinforced concrot: pipe shall be accurately placed at
the bottom ::nd pipo shall be laid with tho groove ends upstream. Pipe
shall gcneaa.11y be laid froze the downstream end, progressing,upstroam,
and in such a manner that oa-rth or beddi: g ;a:.tcraal is not forced into
the annular space for the grouti::g of joints,
(i) Joirti.e All pipe shall be closely jointed and sealed with stiff
mortar, so placed as to form a durable water tight jcint. After any
section of -Pipe is laid, the 1-.tor half of tho groove of the pine last
1-id shall be thoroughly cov red with a sufficient quantit.- of mortar
to fill the 90int. The upper half of the tongue end of the next section
of pipo..shall then be covered with mortdr as specified above and .
inscrced into the adjacoxit••pipo, holding:iit.as high as possible
until it is fully inscxted and then lowered gently in the mortar. Aftor
a minimum of four suctions have been laid ahead, uniformly matched and the
sections have bc,n fitted e.s close as the const= •action of the pipe will
pormit, the c:nt ro inner circumforenco of the joint shall be packed
and sealed irith mortar and finished smooth and oven with the adjacent
sections of pine. 3oforc this mortar has attained its initial set,
additional mortar shall be applied from the out-,Ado and forced into
the unfilled portion of the groove to fill the annu_ar space around tho
joints and finishod flush with do pipe above tho bedding. For pipes too
small to permit finish of the inside surface of tho joint, a tight
stopper of burlap or equivalent material shill be dragged through the
Pipe past tho now joint to romovc an fins of mortar. Special care shall
be e;;ercised to avoid movement of the pipe in placo and the breaking of
the mortar bond at joints,
-S-6o-3
No jointing shall be done in freezing weather and joints which have boon
placed shall be protected against frooeing for at least six hours. After
placing,.any pipe which is not in true alignmont or which shows any
undue settlement after laying, or is damaged, shall be token up and
rolaid or roplacod, as nay be required, without extra compensation,
(j) Connections -There pipe storm sewers are connected to manholos,
inlot:s or hoadwalls, and the section of pipe mahing the connections
cannot be set flush with tho inside wall face, the pine shall be set
or cut r, minimum of three (3) inches short of a junction with that
f,�.co and tic inside nipo diamotor formed to complete the intersection.
Stub en's for the connaction of future storm sewer pipe not included
in this contract sh,:ll be finished by inserting a precast concrete
plug, of a dosign acceptable to the Enginear, into the fret: end of the
pipe and mortaring it into place to form a watertight end which may
be roadil.y romovod for future connections.
(k) Backfill (1) No backfi'_1 shall be placed until the pipe joints
affectud have boon cured for at lor_st 12 hours.
(2) Ordinary b-Ici —fill All backfill othor than for conditions
pru�;cribcd below and who::o otherwise specifically designated on the
plans shall be made with material from storm s.:wor excavation free d£
large lumps or clods, 'ihich will not readily break down under compaction,
The material shall be placed in layers not oxcoeding six (611) inches in
depth and mochanically ter pod up to a minimum of one (11) foot above
ton of the rcnduit. Backfill bolow top of conduit shall be placed and
corcpactud alone both sides of the pipe equally to pravcnt strain on or
displacomen-c of the conduit.. Fro -: a point one (11) foot above the top
of the conduit to a point 1-,: foot below tYo surface of the ground,
or the sub -grado of the street, bac}1ill will be placed in layers not
to oxccid 1-,; foot in thickness. After tho trench has boon filled in
above manner, at shall. be wator tamped and jetted in such mannor as to
olimi.nato all cavitias and to socIre coaploto consolidation of the
back-Pill material. After this operation is completed to tho satisfaction
of the Lngincor, tho final 1Z feet shall be rlacod in two equal layers
and each layer mcch.-±nically tamocd or rolled to socirro compaction as
diractod by the Engineer,
(3) Sulected Backfill Storm saucr conduit laid under or within four
(41) fo -:t of the od;o of the pavement and •:horo otherwiso soecifical:_y
designated on the pla::s shall be backfillcd to sub -grado or ground surface
with saloctci material from the storm conduit o;ccavation. Llatcr'_al s_iall
bo spread in layers not to oxccod six (611) inches loose dc-)th and cacti
layer solidly tamped by means of mechanical tampers. Backfill below top
of thu conduit shall be placed and compacted along both sides of the
conduit equally to Drevent strain on or displacomor_t of the conduit.
From a point one (11) foot above tho -top of the conduit to the surface
of the ground, or the sub -grado of the street, ba.:kfill shall be placed
in layers not to exceed six (611) inches loose depth and compacted b-
mechanical tampers or power drawn rollers. Tractors for pulling the'
rollers shall have a weight not exceeding eight tons,
s -60-4
S 60.4 I .SUIIMM -NT:
Moasuromont will be by the linear foot of the various size of stan-
dard reinforced concrete pipe storm seer complete in place in
accordance with these specifications measurement being made alone„ the
centerline of each line of pipe from the inside face of the !all of
the boginnir_g inlet or ;.ianholo to tho c-,ntor of each succeeding inlet
or Danhole, vith no deduction bc:.ng made for inlets or manholes •rith a
clear width along the run of the pipe of less t,_an six (6) foot. For
structures vi•th a clear inside width of six (6) foot or more, the
lengths of pino storm save:: will be mews, red to and fron the inside
faces of the walls of such structures.
Pipe storm se -cr stubs *rill be measured along the centerline of the pipe
from the inside f:.co of the wall of the structure to the free end of
the •pipo stub.
S 60.5 :..Y_ -: T :
Work performed and materials furnished c.s prescribod by'.this item,
measured as provided above, shall b: paid for at the several contract
unit prices bid per lines foot for the various size of Reinforced
Concrete Pipe Scirers which prices shall be full compensation for the
excavation and backfilling of the trench, furnishing and placing
of all pipe, bedding and all other materials; and for all labor,
tools, equipment and incidentals necessary to comnlote the work.
s -60 -5
S_
S 63 INLETS
S 63.1 DESCRIPTION:
This specification shall govern for furnishing of all ma.terials and the con-
struction of inlets composed of a concrete base and concrete or brick masonry
walls as shown on the Plans, and shall be constructed in conformity with t he
requirements of this specification and the lines, g•ades and dimensions, shown
on the Plans or established by the Engineer. All concrete shall be reinforced
in conformity with reinforcing details and shall be provided with manhole
ring and cover. The inlets shall be so constructed as to h7rmonize with the
adjacent curb and gutter as shown on P14.ns. Special care shall be taken
in the construction of the inlets to insure the proper installation of the
outlet pipe as provided for the respective inlets as shown on the Plan.
Inlet bottoms shall be shaped to provide proper slope to the outlet pipe.
S 63.2 MATERIAIS:
Conorete shall be- Class "A" conforming to the requirements of "Concrete for
Structures." Inlets may be made from concrete, brick made from surface clay
or shale, concrete brick, or a combination of these materials. All clay
brick shall conform to Grade NA of A.S.T.M. Specifications Designation
C- 32 -42. The brick shall have a minimum size of 2J:" x 3 -3/4" x 8" and a
maximum size of 24' x 4" x e'. All concrete brick shall conform to Grade A
of A.S.T.M. Specification Designation 0- 55 -37.
The mortar for the masonry shall be one (1) part Portland Cement to three (3)
parts clean hard and sharp mortar sand and shall be free of all foreign sub-
stances or injurious alkalies. The mortar for plastering the outside of
the inlets shall be the same as specified for the brick work.
Reinforcement steel, where used, shall conform to requirements of "Reinforce-
ment."
The manhole rings and covers shall be of the sidewalk type Alamo Iron Works
#993 or equal and shall have the seating surfaces of Ring and Cover machined
in order to secure a snug fit.
Inlet steps where required shall be Alamo Iron Works x{989 or equal.
S 63.3 EXCAVATION:
The Contractor shall do all necessary excav ^tions for the various inlets.
Such excavations shall be of sufficient size as to permit the proper install-
ation of the base and wall forms, and allow room for the stripping of such
forms. All such excavating shall conform to the size and dimensions as
shown on Plans plus a maximum of four (4) feet to permit working room. Care
shall be taken to insure that the excavation is not carried to a greater
depth than required. If it becomes neceosary to shore the walls of the
excavated area, such shoring shall be of two (2) inch material, such shoring
shell be braced in such manner cs to insure support of the walls and also
permit the construction of the inlet itself without necessitating the removal
of any shoring until such time as the entire inlet is completed. No shoring
shall be left or backfilled around unless authorized by the Engineer.
S -63 -1
Shoring shall remain in place for at least twenty -four (24) hours after the
masonry or concrete work has been completed.
S 63.4 BRICK INLETS:
All brick work for inlets shell be laid in header courses and shall have a
full bed of mortar; all mortar joints not to exceed one -half (2) inch; all
mortar to be cement mortar; all inside mortar joints to be neatly otruck.
The masonry shall be built upon level courses true to line, grade and
dimensions as shown on the Plans. Bats shall be used only when necessary
to close joints. All brick shall be wet down immediately before being placed,
unless otherwise permitted by the Engineer. The outside of the inlets shall
receive a coat of Cement Mortar Plaster, this plaq�er shall be applied as
the construction of the inlet progresses, and shall conform to the require-
ments as noted on detail of inlets as shorn in the'Plans. The bottom of
the inlets shall be shaped to provide slope to the outlet pipe. All pipes
shall be cut to fit the inside surface of the walls.
S 63.5 CONCRETE INLETS: `
Concrete shall be Class "A" Concrete as set forth herein. Where formed con-
crete is to be used, the forms shall be constructed of either wood or metal.
If wood is to be used, such wood material shall be of the Standard'type as
used for such construction. The forms shall be built true to line and grades,
and shall conform to the dimensions as shown on the details of inlets in
the Plans. All inserts and opening shall be so formed that the concrete will
not be injured during the process of stripping of the forms. The forms shall
be so braced and tied as to prevent any spreading or bulging in the forms,
and shall meet the approval of the Engineer prior to placing concrete., All
forms shall be clean and sprinkled prior to placing of concrete. The forms
shall remain in place for a minimum of twenty -four (24) hours before being
stripped and all forms shall be removed within a miximum time of seven (7)
days after completion of the concrete work. All reinforcing steel, if
required, shall be as shown on the Plans. Steel bars shall be of the size
and length specified, and shall be placed as shown on the plans. The bottom
of the inlets shall be shaped to provide proper slope to the outlet pipe.
All pipes shall be cut to fit the inside surface of the walls.
S 63.6 GEu AL CCNSTRUCTION METHODS:
All items shall be installed as the work progresses to such points as where
these installations shall be completed and finished in a careful and
workman -like manner, special care being given to pealing the joints around
all pipe that extend through the wall of the inlet. After finishing of walls
has been completed, the bottom of the inlet shall be completed by installing
sufficient additional concrete as to shape or form the bottom of the inlet to
conform with the requirements as shown on the inlet details of the Plans.
Where old inlets are to be adjusted to meet new lines and grades, all old
masonry or concrete shall be thoroughly cleaned and wetted before joining any
new masonry or concrete to it. All work on old inlets shall be done in a
good and workman -like manner, and in conformity with the usual practices
used on such work. All materials for adjusting old inlets shall conform
to the requirements set cut in these specifications for inlet work.
5 -63 -2
Additional three =heel rollers shall be provided if needed.
Rolling with pnou,actie rollers r.'.11. be rec_uircd --here ratis�
factory core =a ion caarot bo secu7e? with flat wheel rollers,
The moti n of the roller shall be slo-- onoug :: at all times
to avoid displ :cemor_t of the m'. =; rc, if any displacement
occurs, it :hall. be corrected at once by the u a of rake ,.nd
of fresh mixtu)�c teacre rocuirc :l. ThD roller shall not be
a110 ed to stand on �avc�c it -hi.ch has not been full-- compacted,
To Prcv -r.t ac�horio;n of -.he surf-ce L.fscturo to t'mo roller, the
wheels shell be kept thorout;- ly ; .oi_wt : cd with water, by an
excess of -later will n.,t be perr�.tted, A11. rollers must be
in good mechanical co- ditio : ,I, llecoosa-ry precautions ehall be
taken to prevent the dropping of gs6olino, oil, gr:asc,
cinders- or other foreign matter on the pnvonent, either
uhon the rollers are in operation or -,hen stcnd ?ng,
(o) Hand Tamping: The edges of t.io -,avoment along curbs,
headers, and similes structures, and at all -twlaces not
accessible to -.ho roller, or in such position as will ,,ot
..,ilo, thorou •h compaction tr�th tl.,; roller, the mixture shall
be thoroughly compacted with lightly oiled tamps,
(6) Surface Tests:
The surface of the pavement, after coupr :ssion, shall be
smooth and true to t1-0 established line, grade and crosc-
section, and .hen t.;ate,' with a 16' straight -oL:Se placed
Parallel to the contcr line of `.h -: road -,!ay, it Shall have
no devia.ti.on in excess of 1/16" Per foot from the nearest
point of oortact. The maximum or<'inate measured from the
face of the strai.e _t edge shall not oxcood 1/4" at any point.
Any point : ',he surf;:ce act meet -_ %ng these regtiirome is shall
be irmiodiatoly corrected,
(7) Opening to Trcffic:
The p vemant shall be opened to traffic �ihen dirocted by the
Engine.;r, X7.1 construction traffic allo *red on the pavement
shall comply with the Statc lams "ovornin, traffic on highirays
S 34.8 1El .,cLT_, iM:T:
(a) Asphaltic' concrete will be :aeacurc,' by the tone to tt;o
thousand (2000) pounds of the t -
.?o -:,r types of "A9PFLaLT" or
"AGGREGATES" actually usod in the completed nd accepted work
in o.ccordanco with the plans a d sPecifications for tho
projoct. Measurement, if batchod by weight, -ill be made on the
batch scales and records of th:: number of batc_-)s, batch designs
and weight of "'SPFE:LT" end " AGG_aLTES" will be Icept.
Measurement, if mixing is done b -- a continuous mixer, fill be
made on true!: scales.
(b) Tac'c Coat will be moasu;^ed by the g. -Ilons at the
tomneraturc applied,
S- 34-1.3
S 34.9 Payment:
(a) ?fork nerformod _.lid material furnished as prescribed
by this item, measzrod as provided above shall be paid for at
tho unit prices bid for "GSPEALT" and "AGGREGP.TIE" of the
types specified with price shall be full com_)ensaticon for
quarrying, frrnishi.nl� al'. materials, for all heating; nixing
hauling, el: a -'i.2g tho existing base cour• a or paver-:;-,It,
placing asphaltic concrete mixture, roll ig and finishing,
and for all labor, tools, equipment, and incidentals nocessmy
to co-T-.lctc the - ork, except --ork and materials involved in
the : ,plication of the tac'.t coat.
(')) The tack coat, measured as provided above, shall be
paid for at the unit price bid for "TACIT CC:'i "; which price
shall be full compensation for furnishing, preparing, hauling,
and placing the asphaltic materials of the grade used and for
all labor tools, equipment; and incidentals necessary to cor�-
plcto tho stork.
(c) 1111 templates, straight edges, scales, and other
neighing and measuring devices necessary for the proper
construction, measuring and cheeping of the work shall uo
furnished, operated, anl.. maintained by the Contractor at his
expense,
S -34 -14
SPECIAL PROVISION "GEURAL"
% For this project oil asphalts, cutbacks asphalts, and �eoad oils, shall
be of the follming grades and types. E:mept where otherwise specified,
all tests Hhall be made in accordance with the latest A,A,S.H2O, methods,
(1) OIL ASPHALT
The material •skull be homogenous, shall be free from wator, shall not
foam -hen heated to 3470 F., and shall moot the following roquirannnts:
Grade
OA -30 '
OA =55,
OA -90 ,
DA -135 •
OA -175
OA 230
Penetration
Min. Mhx,
bLin, Max
Min. tax,
Min. licx,
tint, tl',x
' liin, . Max,
at 320 F,, 200 g,
60 sce,
15 -
Penetration
at 770 F., 100 g,
5 sec,
25 . 35
50 60
85 100
120 150
150 200
210 250
Penetration
at 115 F,, 50 g,
5 sec.
- 65
Ducti ;ity
at 77 F.,
,
5 cm/min., cros.
2 -
100 -
100 -
100 -
70 -
70 -.
Flash Point
C.O.C., OF,
450 -
450 -
450 -
1450 -
450 -
450 - ,
Softening Point,
R. B.,
185 -
113 140
113 140
104 140
95" 130
86 122
Loss at 3250 F.,
50 gns, 5 hrs., %
- . 0.75:-
- 0.75
- 0,'75
- •0,75
- 0.75
0.75
Penetration of
Rcsiduo at 770F.,
100 g,, 5 sec,
15 -
30 -
50 -
70 -
90 -
125 -
Solubility
in C014; %
99,5 -
99,5 -
99,5 _
99.5 -
99.5 -
99.5 -
Soo Note A which applies to all of above grades,
(2) CUT -BACK ASPHUTS
The material shat' be freo from Crater and shall moot the following requirements;
Typo
RC -1
RC -2
M0 -1
. MC4
• � • MC-3 -
. • M9 -5
Flash Point
Min. Mai
Min. Max.
Min. Max,
Min. MX,
.An. • •Mme,
. Min, . Max.
T.O.C, OF
80 -
80 -
80 -
150 -
150 -
150 -
Furol Viscosity
- 40
- 30
-• 50
- 27
- 25
18
,.t 770 E,, Soo.
110 150
Furol Viscosity
- -
- 5
100 -
100 -
100 -
100 -
at 1220 F., Sec.
100 160
200 275
Furol Viscosity
99.5
199.5
199.5 -
99.5 -
99.5 -
99.5•-
at 1400 F., Sec.
150 250
300 500
Furol giscosity
at 180 F., Sod,
300 500
When distillod by A.A.S,H.O. Method T -78, (A.S.T.M. Method D -402), the dis-
tillate shall be as follows, expressed as por cant of total cutback:
Off at 4370 F.
12 -
10 -
- 10
- 2
- 2
-
Off at 5000 F.
- 4
Off at 6000 F;
25 -
-
25 -
10 20
8 20
4 14
Off at 6800 F.
- 40
- 30
-• 50
- 27
- 25
18
Off botwoen
6000F.and 6800F.
- -
- 5
100 -
100 -
100 -
100 -
Test on rdsidue:
Penetration at
770F,,100 grams
5 seconds
70 100
120 150
100 200
100 200
100 200
100 200
Ductility at
•
r
770F.,5'cm /min.
cros.
100 -
100 -
100 -
100 -
100 -
100 -
Gol•.ibility in
CC14,
99.5
199.5
199.5 -
99.5 -
99.5 -
99.5•-
See Noto A whihe applies to all'of above types,
(3) ROAD OILS
The material shall be free from water and shall meet the follo:ing requirments:
RO- -3 RO - 4 RO -95 RO- Special
Min. Max. Mdn. Max, n.- `tiax. Iiin. PI�c.
( ) Asphalt content of 85 to
115 penetration
60 55 55
Spadcific Gravity at
77 F ,/60oF. 0.95 - 0.94 - - - - - -
Flash Point, C.O.C., OF. 225 - 175 - 250 - 225 -
Viscosity Furol at
17.29F., Sao. - - ioo 160 - - - 500
vis8osity Furol at
140 F,, Sec. 200 320 - - - - -
Loss at 212x'.
20 gms, 5 hrs.,% - 6.o - 6.o - - - 6.o
Loss at 3250F.
50 gms. 7 hrs.,, - - - - 2,o 6.o - -
Uater and Sediment -P - - - - - - 2,0
Penetration of resAue after
evaporation loss, 100 gms.,5 sec, - - - - 175 250 - -
Ductility of residue at
770F,, 6 cm /min., ems, 100 - 100 - - - - -
Solubility in C014, rol a9.5 - 99.5 - 99.5 - - -
Float Test at 1220F,, Sec, —� _- - -- -. - ` 140 N175
N - Determined by vacimm Distillation according to T.H.D. No. 131 -45.
Soo Mote A which applies to all of above road oils except RO - Special,
RO- Special may be untracked , partially cracked or cradked,
Note (A): ;Ilien tostod in accordance *. =ith the A.A.S.H.O. Standard Method of
Test of Asphaltic Materials by Oliensis Spot Method T- 102 -38, asphaltic materials
listed under (1), (2), and (3) above shall show a negative results unless it is
definitely proved that the :iarent crude cannot be processed to yield asphaltic
material which will give.a negative results regardless of he- - carefully the
crude is processed. Whan such proof is furnished, the use of the following
modified solvent will be permitted, and no other clauses or requirements
of the standarPtests are waived or changed,.
The modified solvent shall be distillate from the parent crude from whu:dh
the asphaltic material Lmder test was made, and shall have the following
distillation characteris,,ics:
Inital boiling point above 3000F.
50 per cent off at -335 to 3550F.
End Point Beloit 4100F.
S 40 PORTLAND CEMENT CONCRETE
S 40.1 DESCRIPTION
This specification shall govern for the materials used; for the storing,
measuring and handling of materials, and for the proportioning, mixing,
placing and curing of concrete for bridges, culverts, sewers and incidental
structures involving the use of concrete.
S 40.2 CEMENT
Tie cement to be used shall be one or more of the following types as de-
signated by the Engineer:
Normal portland cement shall conform to the Standard Specifications for
Portland Cement of the A.S.T.M. (C9 -38).
High early strength portland cement shall conform to Standard Specifica-
tions of the A.S.T.M. (74 -39).
S 40.3 WATER
Water for concrete shall be clean and free from injurious amounts of oil,
.acid, alkali, organic matter, or other deleterious substances.
When subjected to the mortar strength test, the strength at 28 days of
mortar specimens made with the water under examination and normal portland
cement, shall be at least 90 per cent of the strength of similar specimens
made with the same cement and with water of known satisfactory quality.
S 40.4 FINE AGGREGATE
Fine aggregate shall consist of natural sand, or sand prepared from the
product obtained by crushing stone or gravel.
When tested by approved methods, the fine aggregate shall conform to the
following grading requirements:
Retained on 3/8" screen ...................0%
Retained on i" screen ................0 to 5%
Retained on 20 mesh sieve......... 15 to 50%
Retained on 100 mesh sieve........ 85 to 100%
For the purpose of controlling the grading of fine aggregate from any one
source, a preliminary sample shall be submitted prior to actual deliveries.
This sample shall be representative of the material which it is proposed
to furnish. Any shipment of fine aggregate, made during the progress of
the work which shows a variation in fineness modulus greater than 0.20
either way from the fineness modulus of the preliminary sample, shall be
rejected or, at the option of the Engineer, may be accepted subject to
such changes in concrete proportions as may be necessary by reason of
failure to comply with the requirements of this section.
S 40-1
Deleterious substances shall not be present in excess of the following
percentages by weight:
Material removed by decantation ......... 3.0%
Clasp lumps ... ...........................0.5%
Other substances such as coal, shale,
and friable particles ...................2.0%
The fine aggregate when tested in accordance with the method of test for
c¢rganic impurities shall show a color not darker than the standard color.
Mortar specimens made with the fine aggregate when tested in accordance
with the mortar strength test shall have an average compressive strength
of at least 90 per cent of the strength of similar specimens made with the
same cement and Ottawa sand graded as specified in A.S.T.M. Tentative Method
of Test for Compressive Strength of Portland Cement Mortars (A.S.T.M. De-
signation: 0109 -37T) when tested at an age of not less than 7 daps when
normal portland cement is used and not less than 3 days when high early
strength cement is used.
S 40.5 COARSE AGGREGATE
Coarse aggregate shall consist of crushed stone or gravel and shall have
a wear of not more than forty (40) per cent when tested according to
AASHO Method T -96.
Coarse aggregate shall conform to the following grading requirements:
Retained on 2" screen 0%
Retained on 1-,P' screen 0 to 5%
Retained on 3/4" screen 25 to60%
Retained on-in screen 95 to 100%
Deleterious substances shall not be present in excess of the following
percentages by weight:
Material removed by decantation ......... 1.0 %`
Shale or slate ... .......................1.0%
Clay lumps ............................... 0.25%
Soft fragments...... .................... 3.07%
The sum of all deleterious ingredients, exclusive of material removed by
decantation, shall not exceed 5% by weight.
S 44.6 SAMPLING AND TESTING
Methods of -sampling portland cement and high early strength portland cement
shall be in accordance with A.S.T.M. Standard Methods of Sampling and
Physical Testing of Portland Cement (A.S.T.M. Designation: C77 -39).
Methods of sampling aggregates shall be in accordance with A.S.T.M. Tenta-
tive Methods of Sampling Stone, Slag, Gravel, Sand and Stone Block for Use
as Highway Materials Including Some Material Survey Methods (A.S.T.M.
Designation: D75 -39T).
Portland cement and high-early-strength portland cement shall be tested
in accordance with A.S.T.M. Standard Methods of Sampling and Physical
S 40-2
Testing of Portland Cement (A.S.T.M. Designation: C77 -39).
Fine and coarse aggregate shall be tested in accordance 'With the
following:
(a) G in A.S.T.M. Standard Method of Test for Sieve
Analysis of Fine and Coarse Aggregate (A.S.T.M. Designation: 0136 -39).
(b) Uniformity of Grading -- Fineness Modulus The fineness modulus
of the aggregate shall be determined by adding the total percentages re-
tained on the following U.S. Standard sieves and dividing by 100: 3-in.,
1i -in., 3 /4 -in., No. 4, No.8, No-16, N0.30, No.50, and N0.100.
(c) Organic Impurities— A.S.T.M. Standard Method of Test for Organic
Impurities in Sands for Concrete (A.S.T.M. Designation; C40 -33).
(d) Cosl and Lignite-- A.S.T.M. Standard Method of Test'for Coal and
Lignite in Sand (A.S.T.M. Designation: C123 -39).
(e) Fineness-- A.S.T.M. Standard Method of Test for Amount of
Material Finer than No. 200 sieve in Aggregates (A.S.T.M. Designation
C117 -37).
(f) Cla'y Lumps The percentages of clay lumps shall be determined
by examining the various fractions which remain after the test for grading.
ADY particles that can be br6ken up with the fingers shall be classified as
clay lumps and the total percentages by weight of all clay lumps shall be
determined on the basis of the total original weight of the sample.
(g) Mortar Strength— A.S.T.M. Standard Method of Test for Structural
Strength of Fine Aggregate Using Constant Water - Cement -Ratio Mortar
(A.S.T.M. Designation: C87 -39).
S 40.7 CONCRETE PROPORTIONING
It is the intent of this specification to secure, for every part of the
work, concrete of homogeneous structure which, when hardened, will have
the required strength and resistance to weathering. To this end, the
limiting strengths and water contents sbinm in Table A are Specified. The
values given in Table A are based on the use of normal portland cement
aggregates, and water which meet the requirements of this specification.
Table A
Minimum Allowable Strength M%zimua Allowable Net Minimum Cement
Class Compressive at 28 Days; Water Content Per Sack Content sacks
p.s.i. - of Cement; gallons per cubic yard
A 3000 6.00 5
B 2500 6.75 4z
C 2000 7.50 4
D 1500 8.25 3
S -4O-3
The strengths shall be determined in accordance with the requirements of
S 40.10. The -xi-- allowable net water content is the total water in
the mixture at'the time of mixing, not including the water absorbed by
the aggregates.
The proportions of cement, aggregates, and water necessary to produce con-
crete conforming to the requirements of Table A shall be determined by means
of laboratory tests of concrete made with the cement and aggregates to be
used on the work. At least 35 days prior to the beginning of concrete work
the Contractor shall submit, for approval, samples of the materials he
proposes to use. Prior to the beginning of work he shall also submit a
statement of the proportions proposed for the concrete mixture. This shall
be accompanied by a report in detail from an approved testing laboratory
or inspection service showing for at least 3 different water contents the
7-day and 28-day concrete strengths obtained when using the materials pro-
posed for the work. The strength determinations shall be based on not
less than 5 concrete test specimens for each age and for each water content.
The Engineer shall have the right to make check tests of concrete, using
the same materials, and to order such changes as may be necessary to meet
the requirements of the specifications.
The ratio between the 7-day and 28-day strengths established by the pre-
liminary tests shall be used to determine the 7-day strengths necessary
to satisfy the 28-day strength requirements of Table A. This ratio shall
be modified as the work progresses as may be indicated by the results of
tests made.
In the event that the Contractor furnishes reliable test records of con-
crete made with materials from the same sources and of the same quality in
connection with current work, all or a part of the strength tests specified
hereinbefore may be waived by the Engineer.
The concrete shall be of such consistency and composition that it can be
worked readily into the corners and angles of the forms and around. the
reinforcement without permitting the materials to segregate or free water
to collect on the surface. Subject to the limiting requirements of Table A,
the Contractor shall adjust the proportions of cement and aggregate as may
be necessary to produce a mixture which will be easily placeable at all
times, due consideration being given to the methods of placing and compact-
ing used on'the work.
When high frequency mechanical vibration is used for compacting concrete,
the limiting consistencies in Table A may be modified subject to the
approval of the Engineer. The proportions and consistencies, however, shall
be such that with the vibratory equipment in use the full requirements of
workability shall be satisfied.
If, during the progress of the work, it is found impossible to secure con-
crete of the required workability and strength with the materials being
furnished by the Contractor, the Engineer may order such changes in pro-
portions or materials, or both, as may be necessary to secure the desired
S 40-4
properties, subject to the limiting requirements shown in Table A. Any
changes so ordered shall be made at the Contractor's expense, and no extra
compensation will be allowed by reason of such changes.
If, during the progress of the work, the Contractor desires to use materials
other than those originally approved, or if the materials from the sources
originally approved changes in characteristics, he shall submit for approval,
evidence satisfactory to the Engineer that the new combination of materials
will produce concrete meeting the requirements shown in Table A, and will
not bring about objectionable changes in the color or appearance of the
structure.
Regardless of the limitations of Table A, at any time during the progress of
the work, the owner shall have the right to make such changes in the materials
or proportions, or both, as he may consider necessary to meet the requirements
of the structure. In such case, the Contractor shall be compensated in ac-
cordance with the terms of the contract for the additional cost of materials
and additional handling and placing costs, if any, entailed by changed
materials or mixtures, or both, which are not covered by the specification
requirements shown in Table A for the respective portions of the work in-
volved.
When high early strength portland cement is used in lieu of normal portland
cetdettt; the requirements given in Table A shall apply, except that the
"W niamm allowable strength at 28 days" specified for normal portland cement
shall be the miniTm+m allowable strength at 7 days. The ages at time of test
specified in S 40.7 shall be 3 days and 7 days in lieu of the 7-day and
28-day ages specified for normal portland cement.
S 40.8 MING
The mixing equipment shall be capable of combining the aggregates, cement,
and water within the specified time into a thoroughly mixed and uniform
mass, and of discharging the mixture without segregation.
Unless otherwise authorized by the Engineer, the mixing of concrete shall be
done in a batch mixer of approved type which will insure a uniform distri-
bution of the material throughout the mass. The equipment at the mixing
plant shall be so constructed that all materials (including the water) enter-
ing the drum can be accurately proportioned and be under control. The entire
batch shall be discharged before recharging. The volume of the mixed material
per batch shall not exceed the manufacturer's rated capacity of the mixer.
Except as qualified hereinafter mixing of each batch shall continue for the
periods indicated below, during which time the drum shall rotate at a peri-
pheral speed of about 200 feet per minute. The mixing periods shall be
measured from the time when all of the solid materials are in the mixer drum,
provided that all of the mixing water shall be introduced before one - fourth
of the mixing time has elapsed.
Mixing time shall be as follows:
1. For mixers of a capacity of one cubic yard or less -1 minute.
2. For mixers of capacities larger than one cubic yard, the time
S 44-5
of mixing shall be increased 15 seconds for each additional half —cubic
yard capacity or fraction thereof.
Truck mixers, unless otherwise authorized by the Engineer, shall be of the
revolving drum type, watertight, and so constructed that the concrete can
be mixed to insure a uniform distribution of materials throughout the mass.
All solid materials for the concrete shall be accurately measured and charged
into the drum at the proportioning plant. Except as subsequently provided,
the truck mixer shall be equipped with a tank for carrying mixing water.
Only the prescribed amount of water shall be placed in the tank unless the
tank is equipped with a device by which the quantity of water added can be
readily verified. The mixing water may be added directly to the batch, in
which case a tank shall not be required. Truck mixers may be required to be
provided with means by which the mixing time can be readily verified by the
Engineer. The maximum size of batch in truck mixers shall be in accordance
with the specified rating. Truck mixing shall be continued for not less
than fifty revolutions after all ingredients, including water, are in the
drum. The speed shall not be less than 4 r.p.m., nor more than a speed re-
sulting in a peripheral velocity of the drum of 225 feet per minute. Not
more than 150 revolutions of mixing shall be at a speed in excess of 6
r.p.m. Mixing shall begin within 30 minutes after the cement has been
added either to the water or aggregate.
When a truck mixer, or an agitator provided with adequate mixing blades, is
used for transportation, the mixing time at the stationary machine mixer may
be reduced to 30 seconds and the mixing completed in a truck mixer or agita-
tor. The miring time in the truck mixer or agitator equipped with adequate
mixing blades shall be as specified for truck mixing.
Concrete transported in a track mixer, agitator, or other transportation
device shall be discharged at the job within 1-j hours after the cement has
been added to the water or the aggregates. The maximum volume of mixed
concrete transported in an agitator shall be in accordance with the speci-
fied rating.
When hand mixing is authorized it shall be done on a watertight platform
and in such a manner as to insure a uniform distribution of the materials
throughout the mass. Mixing shall be continued until a homogeneous mixture
of the required consistency is obtained.
The retempering of concrete or mortar which has partially hardened, that is,
mixing with or without additional cement, aggregate, or water, will not be
permitted.
S 40.9 PLACING CONCRETE
Before beginning placement of concrete, hardened concrete and foreign materials
shall be removed from the inner surface of the mixing and conveying equipment.
Before depositing concrete, debris shall be removed from the space to be oc-
cupied by the concrete; forms shall be thoroughly oiled. Reinforcement shall
be thoroughly secured in position and approval by the Engineer obtained be-
fore concrete is placed.
S 40-6
All vat
before
At3Y flo
drains
washing
vent pi
concret
er shall be removed from the
concrete is deposited, unless
w of water into an excavation
to a sump, or be removed by other
the freshly deposited concrete.
Pi.'
space to b
otherwise
shall be
and drains shall be filled by
e has thoroughly hardened.
e occupied by the concrete
directed by the Engineer.
diverted through proper side
approved methods which will avoid
If directed by the Engineer water
grouting or otherwise after the
Concrete shall be handled Prom the mixer, or in the case of ready -mixed
concrete, from the transporting vehicle, to be placed of final deposit as
rapidly as practicable by methods which shall prevent the separation or loss
of the ingredients. Under no circumstances shall concrete that has partially
hardened be deposited in the work. Concrete shall be deposited in the
forms as nearly as practicable in its final position to avoid rehandling.
It shall be so deposited as to maintain, until the completion of the unit,
a plastic surface approximately horizontal. Forms for walls or thin sections
of considerable height shall be provided with openings or other devices
that will permit the concrete to be placed in a manner that will prevent
segregation and accumulations of hardened concrete on the Forms or metal re-
inforcement above the level of the concrete.
Concrete, regardless of the type of transporting vehicle, shall have when
deposited in the forms the quality required.
When concrete is conveyed by chutes, the equipment shall be of such size and
design as to insure a continuous flow in the chute. The chutes shall be of
metal or metal lined and the different portions shall have approximately
the same slope. The slope shall not be less than one vertical, to two
horizontal and shall be such as to prevent the segregation of the ingredients.
The discharge and of the chute shall be provided with a Baffle plate to pre-
vent segregation. If the distance of the discharge end of the chute above
the surface of the concrete is more than three times the thickness of the
layer being deposited, but not more than 5 feet above the surface of the con-
crete, a spout shall be used, and the lower end maintained as near the sur-
face of deposit as practicable. When the operation is intermittent, the
chute shall discharge into a hopper. The chute shall be thoroughly cleaned
before and after each run and the debris and any water used shall be dis-
charged outside the forms.
Concrete, during and immediately after depositing, shall be thoroughly com-
pacted by means of suitable tools. For thin walls or inacessible portions
of the forms, where spading, rodding, or forking is impracticable, the con-
crete shall be worked into place by vibrating, or hammering the forms lightly
opposite the freshly deposited concrete. The concrete shall be thoroughly
worked around the reinforcement, and around embedded fixtures, and into the
corner of the forms.
Accumulations of water on the surface of the concrete due to water gain,
segregation or other causes, during placement and compacting, shall be pre-
vented as far as possible by adjustments in the mixture, provision shall
be made for the removal of such water as may accumulate so that under no
circumstances will concrete be placed in such accumulations.
S 40-7
Concrete may be compacted by mechanical vibration. When mechanical vibration
is used the number and type of vibrators shall be subject to the approval of
-the Engineer.
Concrete shall be deposited continuously, or in layers of such thickness that
no concrete will be deposited on concrete which has hardened sufficiently to
cause the formation of seems and planes of weakness within the section. If
a section cannot be placed continuously, construction joints may be located
at points as provided for in the drawings or as approved by the Engineer.
Before depositing new concrete on or against concrete which has hardened, the
forms shall be retightened. The surface of the hardened concrete shall be
roughened as required by the Engineer, in a manner that will not leave loosened
particles of aggregate or damaged concrete at the surface. It shall be
thoroughly cleaned of foreign matter and laitance, and saturated with water.
To insure and excess of mortar at the . junctute, 'n£:tft, :hardened`and.the.newly
deposited concrete, the cleaned and saturated surfacesi including vertical
and inclined surfaces, shall first be thoroughly covered with a coating of
mortar or neat cement grout against which the new concrete shall be placed
before the grout has attained its initial set.
When it is necessary to deposit concrete under water, the methods, equipment,
materials, and proportions of the mixture to be used shall be submitted to
and be approved by the Engineer before the work is started.
S 40.10 CURING OF CONCRETE
When not otherwise specified, all exposed concrete surfaces when not pro-
tected by forms, must be kept constantly wet for a period of not less than
four (4) days after concrete is placed, when normal portland cement is used,
and not less than 48 hours when high early strength portland cement is used.
Liquid surface applications to prevent or minlmhioeceYaaporatinmL,mpy)be used
in lieu of wet curing only when approved by the Engineer.
S 40.11 FIELD TESTS OF CONCRETE
Daring the progress of construction, the Engineer will have tests made to
determine whether the conchete as being produced complies with the standards
of quality specified. The Contractor shall cooperate in -the making of such
tests to the extent of allowing free access to the work for the selection
of samples and storage of specimens, and in affording protection to the
specimens against injury or loss through his operations.
Threes cylinders -or beams will generally be made for each class of concrete
used in any one day's operation. In special cases this normal number of
control specimens- may be exceeded when in the opinion of the Engineer such
additional tests are necessary. The Contractor, however, shall not be re-
quired to furnish for such additional tests more thami 2 cu. ft. of concrete
from each 100 cu. yd. of concrete being placed.
Samples of concrete for test specimens; shall be taken at the mixer, or in
the case of ready mixed concrete, from the transportation vehicle during
discharge. When, in the opinibn of the Engineer, it is desirable to take
samples elsewhere, they shall be taken as directed by him. The test
S 40-8
specimens shall be molded immediately after the sample is taken, placed in
a protected spot and kept under moist during conditions at approximately 700F
for 24 hours, whereupon they shall be removed to the testing laboratory. In
the laboratory they shall be kept under standard moist curing conditions at
700 F (plus or minus 50 F) until time of test and shall be tested in the
damp condition.
The tests shall be made at the age of the concrete corresponding to that for
which the strengths are specified in Table A.
For compression tests, the size of cylinder and the manner of molding, capping,
and testing shall be in accordance with the A.S.T.M. Standard Method of Test
for Compressive Strength of Concrete (A.S.T.M. Designation: C39 -39).
S 40.12 FAILURE TO MEET STRENGTH REQUIREIMEPFPS
Should the strengths shown by the test specimens made and tested fall below
the values required, the Engineer shall have the right to require changes in
proportions as outlined in S /+0.7 to apply on the remainder of the work.
Furthermore, the Engineer shall have the right to require additional curing
on those portions of the structure represented by the test specimens which
failed. In the event that sucA additional curing does not give the strength
required the Engineer shall have the right to require strengthening or
removal and replacement of those portions of the structure which fail to
develop the required strength.
The specimens will be considered to have failed when the average strength
for any period of placing is less than the values indicated in the following
table:
No. Daps Consecutive Placing Per Cent of Strength Specified
of Any One Class of
Concrete
1 85
2 90
3 95
5 or more 100
When additional curing of portions of the structure is ordered by the
Engineer, it shall be done at the Contractor's expense and no clain for extra
compensation for such additional curing shall be allowed. Such additional
curing shall consist in an extension of the periods of protection specified
as may, in the judgment of the Engineer, be necessary. In no case, however,
shall the Contractor be required to provide such additional curing beyond a
total of 21 daps, except where the average strengths of specimens; represent-
ing concrete placed on any three consecutive days, fall below 80 per cent
of the value specified in Table A. In this case, curing shall be continued
until cores drilled from portions of the structure involved show an average
strength equal to that specified in Table A. Cores for this purpose shall
have a diameter of approximately three times the maximum size of aggregate
and shall be sucured, capped, and tested in accordance with Standard Methods
of Securing Specimens of Hardened Concrete from the Structure (A.S.T.M.
Designation: 042 -39).
S 40 -9
1 4
S 40.13 MEASMU M NT
Where concrete is listed as a separate contract pay item, measurement for
payment will be made by the cubic yard of the acceptable concrete, of the
class specified, complete in place.
Where concrete is not listed as a separate pay item, the concrete furnished
under this specification will not be paid for directly but shall be included
in the unit price bid for monolithic sewer, manholes, inlets, or other per
linear foot or lump sum structure.
S 40.14 PAYMPsNT
Where concrete is listed as a separate contract pay item, payment will be
made at the contract unit price bid per cubic yard for the number of cubic
yards placed in accordance with the plans and specifications. Such unit
price bid will be the-total-compensation for all labor, materials, tools,
equipment, forms, falsework, sheeting, shoring, - bracing, pumping and all
other incidentals necessary to complete the work;
S 40-10
S 52 CONCRETE CURB AND GUTTER
S 52.1 DESCRIPTION.
This specification shall govern for the construction of Portland Cement
Concrete curb and gutter with or without reinforcing steel, dowel and
tie bars, as required, constructed on an approved subgrade in accordance
with these specifications, in conformity with the lines and grades
established by the Engineer, and the details shown on the plans.
S 52,2 MATERIALS*
Materials and proportions for concrete used in construction under this
item shall conform to the requirements as specified for Class "B" Con-
crete under standard specifications S 40 Portland Cement Concretes Re-
inforcing Steel, if required, shall conform to the requirements as
specified for the items S 42 "Reinforcement," Expansion joint filler
shall conform to the requirements as specified in "Expansion Joint
Filler,"
S 52.3 CONSTRUCTION METHODS*
The subgrade shall be excavated and shaped to line, grade and cross - section,
and, if considered necessary in the opinion of the Engineer, hand tamped
and sprinkled. If dry, the subgrade shall be sprinkled lightly immediately
before concrete is deposited thereon. Outside forms shall be of wood or
metal, of a section satisfactory to the Engineer, straight, free of warp
and of a depth equal to the depth of the curb. They shall be securely staked
to line and grade, and maintained in a true position during the depositing of
concrete. Inside forms, if required, for the curb shall be of approved
material, shall be of such design_ as to provide the curb required, and shall
be rigidly attached to the outside forms. The reinforcing steel, if required
in the plans, shall be placed in position as shown on the typical section,
Care shall be exercised to keep,all steel in its proper location. The curb
and gutter shall be poured in sections of the length indicated on plans and
each section shall be separated by a premoulded expansion joint filler of
approved material of the cross- section specified for the curb and gutter, and
of the thickness indicated on the plans. The curb and gutter shall be of
monolithic finish using sufficient dry topping to make a smooth and uniform
surface. The curb and gutter shall be shaped by the use of a template or
mule of the shape required by detail of curb and gutter in plans. Such
template or mule may be made of wood or metal construction, but "Facing"
or "Shaping" surface shall be of metal, Only such areas of curb and gutter
shall be poured at any time, as can be finished properly under this spec-
ification.
S 52,3 CURING*
Curbs and gutters shall be completely covered with wet burlap or canvas as
soon as the concrete has sufficiently set to prevent being marred, the cover-
ing shall remain in place not less than four (4) days, and shall be kept wet
continuously while in place. Under unfavorable weather conditions the curing
period may be extended by the Engineer up to a maximum of six (6) days, Other
curing methods must be approved by the Engineer prior to use,
S -52 -1
S 52.5 BACKFILL:
The back side of curbs and gutters shall be backfilled as soon as the forms
have been removed and the required finishing operation completed. The back -
fill material shall be of earth, thoroughly compacted in layers not exceeding
six (6) inches in depth, and neatly graded off flush with the top of the
curb or gutter, or as shown on the plans and directed by the Engineer. Care
shall be taken not to damage the concrete in placing and compacting the back -
fill.
S 52.6 MARKING:
Curbs and gutters shall be marked by means of a suitable stamp or die, design
to be approved by the Engineer, and marked as shown on plans.
S 52.7 MEASUREMENT:
Concrete curb and gutter shall be measured by the linear foot, complete in
place.
S 52.8 PAYMENT:
The work performed and materials furnished as prescribed by this specification
measured as provided for under "Measurement" shall be paid for at the Contract
unit price bid for "Concrete Curb and Gutter," which price shall be full-com-
pensation for preparing the subgrade, for furnishing and placing all materials
including concrete, expansion joints, reinforcement, backfill, finiahing, forms
and all labor, tools, equipment,, hauling, truck, royalties and all incidentals
necessary to complete the work.
S -52 -2
S 53 CONCRETE SIDMALK5
S 53.1 DESCRIPTION:
This specification shall govern for the construction of sidewalks
composed of Portland Cement Concrete on an approved sub - grade.
Sidewalks shall be constructed in accordance with the details in the
plans and to the line and grade established by the Engineer.
S 53.2 MATER I `iLS :
All sidewalks shall be constructed of "Class B" Concrete, and shall
conform to the requirements as specified under S 40 Portland Cement
Concrete. Expansion Joints shall conform to the requirements as
specified under "Expansion Joint Filler ".
S 53.3 CONSTRUCTION METIIODS:
The sub -grade shall be excavated and shaped in conformity with the
typical sections shown on ;Mans and to the lints and grades as
established by the Engineer. All soft and yielding or other unsuit-
able materials shall be removed and replaced with selected materials,
and the subgrade shall be thoroughly compacted and finished to a firm,
smooth surface, all to the satisfaction of the Engineer.
Expansion joints shall be placed as shown on the plans and shall be
placed at all direction changes of the walk, 'there sidewalk abuts
a curb or retaining -all, expansion joint shall be placed along their
entire length. Sidewalks shall be marked with an appropriate trans-
verse marking tool at intervals not to exceed the width of the sidewalk.
Forms for sidewalk construction, if of wood, shall be of not less
than 2" commercial lumber well stelced and braced to maintain line
and grade after concrete is deposited in the forms. Lumber shall
be free of ;carps and defects and the top surface of such forms shall
be smooth enough to permit the use of a screed or straightedge. If
steel forms are used they shall be true to line and grade, and shall
be cleaned and oiled before each subsquent use.
No concrete shall be placed unless the subgrado and forms have been
checked and approved by the Engineer. Concrete shall be deposited on a
moist subgrade. During placing the concrete shall be thoroughly spaded
next to the forms and shall be carefully tamped, using an approved
tamper. Excess water, laitance, or other inert materials shall be
floated froia the surface.
After the concrete has taken its initial set and is ready to receive
a finish it shall be dusted with an approved mixture of cement and sand
and trowled smooth with a steel trowel, and brushed with a broom or
stiff brush to leave a semi - smooth finish. All edges shall be rounded
with an ap ?ropriate edging tool. The application of cement to the
mortar surface in order to absorb excess water or to hasten the
setting will not be permitted,
S -53 -1
n
TABLE OF CONTENTS
1
1. Advertisement
2. Special Provisions
R
\ 3. General Provisions and Requirements
4. Standard Specifications �
f 5. Contrab't
6. Bonds
e
F
s"
e
NOTICE TO BIDDERS
Sealed proposals, addressed to the City of Corpus Christi, Texas,
for street improvements along Old Robstown Road from Upriver Road to
Agnes Street
in accordance with the plans, specifications and contract documents will
be received at the'City Secretary's office until 4:00 p.m. on November 7 ,
19__&, , and then publicly opened and read. Any bid received after closing
time will be returned unopened.
A Cashier's Check o'r acceptable Bidder's Bond, payable without re-
course to the City of Corpus Christi, Texas, in an amount of not less than
five per cent (5�) of the total amount must accompany each bid.
. Plans, proposal forms, specifications and contract documents may be
procured from the Director of Public Works upon a deposit of ten
dollars ($ 10,00 ) as a guarantee of their safe return in
good condition.
Attention is called to the pre - qualification requirements adopted
by the City Council, requiring that a complete financial statement must
be filed with the City Secretary at least three day prior to theiopening
of bids, and that a Plan, Experience and Equipment Questionnaire, includ-
ing financial statement addenda, must be filed with the City Secretary at
least seventy -two (72) hours prior to the opening of bids.
The bidder is hereby notified that the Owner has ascertained the'
wage rates which prevail in the locality in which this work is to be done
and that such wage scale is set out in the contract documents obtainable
at the office of the Director of Public Works and the Contractor shall pay
not less than the wage rates so shown for each craft or type of "laborer,n
"workman," or "mechanic" employed on this project.
The City reserves the right to reject any and all bids and to -waive
informalities.
let insertion Oct_-_27_1_19J0_
2nd insertion Nov, 3,, 19 `�
CITY OF CORPUS CHRISTI, TEXAS
Leslie Wasserman, Mayor
W. B. Collier, City Manager
PART A - SPECIAL PROVISIONS
A 1 TIME AND PLACE OF RECEIVING PROPOSALS
Sealed proposals will be received in conformity with the official ad-
vertisement inviting bids for the project. Proposals will be received
in the office of the City Secretary of the City of Corpus Christi, Texas,
until /a :00 p.m. on November 7, 1950.
A 2 DESCRIPTION OF PROJECT
This project consist of the construction of curb and gutter and side-
walks, flexible base and asphalt surface along Old Robstown Road from
Upriver Road to Agnes Street.
The curb and gutter and sidewalk will be assesed to the property owners
where none now exist.
The Contractor's particular attention is directed to the following:
The existing concrete pavement indicated on the plans to be removed
will not be paid for separately but shall be included in the unit
price bid for excavation.
i The eight (80) inch depth of caliche shall be placed and compacted
In two (2) layersof approximately equal thickness.
' All backfill of trenches, manhole and inlet excavations and the
area under removed sidewalks shall be compacted in six (6W) inch
f layers by means of mechanical tamps.
The existing storm sewer trench on right from station 1 50 to
station shall be water tamped throughout the entire length
as the first operation of work to be performed.
For this project the measurement and payment for caliche base shall
be by the square yard of eight (8 ") inch compacted base complete
in place.
For this project all structures to'b® Pemoved as- indicated-vf1l not
be paid for separately but shall be included in the unit price bid
for the various other items.
A 3 FORMS, PLANS AND SPECIFICATIONS
Forms of proposal, contract and bonds, and plans and specifications may be
obtained at the office of the Director of Public Works in the City Hall
upon deposit of Ten ($10.00) Dollars, which sum so deposited will be re-
funded, provided the prospective bidder complies with one of the following
requirement es
1. If no proposal will be submitted: All documents must
be returned to the office of the Director of Public
Works not later than forty -eight (48) hours prior to
the time and date of receiving proposals; or,
2. If proposal is submitted: All documents, except pro-
posal form submitted as bid, must be returned to the
office of the Director of Public Works within five (5)
calendar days from and after the time and date of
receiving proposals.
Provided the prospective bidder complies with neither of the two require-
ments, the sum of Ten ($10.00) Dollars shall become the property of the
City of Corpus Christi, Texas.
A 4 RIGHT -OF -WAY
All right -of -way for the construction of the project will be provided by
the City of -Corpus Christi, Texas.
A-5 EXAMINATION OF SITE OF THE PROJECT
Prospective bidders shall make a careful examination pf the site of the
project, soil and water conditions to be encountered, improvements to be
protected, disposal sites for surplus materials not designated to be sal-
vaged mhterials, and as to methods of providing ingress and egress to
private properties, and methods of handling traffic during construction
of the entire project.
A 6 SHEETING. SHORING AND BRACING
Sheeting, shoring and bracing, if required, will not be measured or paid
for as a separate contract pay item, but the cost thereof shall be included
in such items as are provided in the proposal and contract, and none shall
be left in place.
A 7 EXCAVATION
No classification of excavated materials will be made.
A 8 'FOR EQUAL" CLAUSE
Whenever a material or article required is specified or shown on the plans
by using the name of a proprietary product, or of a particular manufacturer
or vendor, angiy material or article which will perform adequately the duties
imposed by the general design will be considered equal and satisfactory,
provided the material or article so proposed is of equal substance and
function, and only after written approval by the Engineer.
A 9 RAILWAY CROSSINGS
It shall be the entire responsibility of the contractor to notify the
railway company involved, at least five (5) days previous to the time of
his intention to begin work on their right -o£ -way. It shall also be the
entire responsibility of the Contractor to obtain approval from the rail-
way company of the methods he intends to use in performing the required
work. All-regulations and instructions as to precautions for safety of
property and the public of the railway company shall be observed by the
Contractor. The Contractor shall bear all costs of extra requirements
that may become necessary on account of demands of the railway company to
protect and keep their tracks in operation with safety.
0 WAGE RATE
All employees directly employed on this-project by the Contractor shall be
paid the prevailing wage scale for work of a similar character in this
locality, and in no event less than the following minimum rates per hour:
SKILLED LABOR HOURLY WAGE RATES
Asphalt plant mixer operator
1.15
Dozer operator (tractor over 55 H.P.)
1.25
Dragline operator (3/4 cu-7d. and over)
1.35
Dragline operator (under 3/4 cu.yd.)
1.25
Form setter
1.30
Master finisher (pavement & structures)
1.30
Mechanic
1.25
Motor patrol operator (finishing pavements and bases)
1.35
Paver operator (27 -E or over)
1.375
Power shovel operator (3/4 cu.yd. or over)
1.40
Power shovel operator (iinder 3/4 ou.yd.),
1.25
Reinforcing steel setter (bridge work)
1.125
Roller operator (self propelled)
1.15
Scraper operator '(over 7 ou.yd.)
1.15
INTERMEDIATE GRADE LABOR
Air tool operator
.85
Asphalt plant fireman
.90
Asphalt raker
.90
Blade grader operator
1.00
Concrete spreader operator
1.00
Distributor driver
.95
Distributor operator
1.00
Dozer operator (tractors under 55 H.P.)
1.00
Finisher's assistant (concrete pavement)
.90
Finishing machine operator ( concrete or asphalt )
1.00
Flexplane operator
1.00
Form grader operator
.90
Hand float operator (assistant finisher)
.85
INTERMEDIATE GRADE LABOR
HOURLY WAGE RATES
Loader operator
.90
Mixer operator (less than 27 -E)
.90
Motor Patrol operator
1.00
Oiler
.90
Pump man
.80
Scraper operator (7 cu.yd. & under)
.95
Spreader box operator
.85
Subgrader operator
.90
Tractor operator (20 or more H.P.)
.90
Trenching machine operator
.90
Truck driver (over 1 -1/2 tons Mfrs. rated capacity
.80
UNSKILLED LABOR
Asphalt loader and shoveler
.75
Asphalt plant miscellaneous labor
.75
Cement handler
.75
Concrete curer (mats, paper, membrane)
.75
Concrete puddler
.75
Concrete vibrator operator
.75
Shoveler (concrete)
.75
Finisher's helper
.75
Formsetter's helper -
.75
Form Oiler
.75
Form puller
.75
Form stripper
.75
Flagman
.75
Labor, miscellaneous, unskilled
.75
Mechanic's helper
.75
Pit man
.75
Reinforcing steel laborer
.75
Spader (concrete work)
.75
Subgrader laborer. (hand tools)
.75
Tractor operator (under 20 horsepower manufacturer's
rated capacity)
.75`
Truck driver (1 -1/2 ton manufacturer's rated capacity
or less)
.75
Water boy
.75
Watchman
.75
One and one -half times the prevailing per diem wage based on an 8 -hour
working day shall be paid for all hours worked in excess of 8 hours a
day in any one week day, or for all hours worked on Sundays'or Holidays.
The days to be considered holidays are as follows:
January 1 Labor Day
May 30 Thanksgiving Day '
July 4 Christmas Day
MANHDLE AND VALV. AXES
All adjusting of manhole rings and covers and valve boxes encountered in
this project shall be done by the Contractor in accordance With the details
shown in the plans, the cost of all materials, labor, equipment and inci-
dentials necessary to complete the work will not be paid for separately but
shall be included in the unit price bid for the various other items.
A 12 STREET EXCAVATION. ITEM 1
Standard specifications shall govern for this item. Concrete pavement to be
removed shall be included in this item.
A 13 8" COMPACTED CALICHE BASE, ITEM_2
Standard specifications shall govern for this item except that the basis of
payment shall be the square yard of compacted base, `
A 1G WT -MIX AGGREGATED (GRAVEL). ITEM 3
Standard specifications shall govern for this item.
A_15 BOX -MIX ASPHALT (OA =90), ITEM 4
Standard specifications shall govern for this item.
A 16 ITEMS 5. 6. 7J. 9. 10 and n
Standard specifications shall govern for these items.
A 17 CONCRETE PAVEMENT (CLASS B). ITEM 12
Standard concrete specifications shall govern for this item except that
the basis of payment shall be by the square yard.
A 18 LACK GOAT (Rg22), ITEM 13
Standard specifications shall govern for this item.
A 19 HDT -MIX ASPHALTIC CONCRETE. ITEM 3-A
For this project the Hot -Mix Asphaltic Concrete specification (S -34) are
hereby amended with respect to clauses cited below and no other clauses
or requirements of this item are waived or changed.
5-34.2 (a) "COARSE AGGREGATE" is supplemented by the followings-
Coarse aggregate shall be "Oyster shell" having a percent of wear of not
more than fifty (50) and otherwise "meeting the .requirements of the type
"B" mixture.
Type "F" mixture shall remain as set out in the specification with a coarse
aggregate of gravel or atone.
9 -20 HDT -MIX ASPHALT (OA -90), ITEM 4 -A
Standard specifications shall govern for this item.
PART G - PROVISIONS AND REQUIREMENTS
SECTION G 1 - DEFINITION OF TERMS AND ABBREVIATIONS
G 1.1 DEFINITION OF TERMS&
Wherever the words, forms or phrases defined herein or pronouns used in
their place occur in these specification, in the contract, in the bonds,
in the advertisement or any other document or instrument herein contem-
plated, or to which these specifications apply or may apply, the intent
and meaning shall be interpreted as follows.
Advertisements A11 of the legal publications pertaining to the work con-
templated or under contract.
Bidder.- Any person, persons, partnership, company, firm, association or
corporation acting directly or through a duly authorized representative
submitting a proposal for work contemplated.
City.- The City of Corpus Christi, Texas, a municipal corporation, acting
ys and through (a) its governing body, or (b) its City Manager, each of
whom is required by Charter to perform specific duties. Responsibility
for final enforcement of contracts involving the City of,Corpus Christi is
by Charter vested in the City Manager.
City Attorneys The City Attorney of the City of Corpus Christi, Texas, or
Us- duly authorized assistants or agents.
City Controllers. The City Controller of the City of Corpus Christi, Texas,
or hi— "3�u - authorized assistants or agents.
City Councils The Council of the City of Corpus Christi, Texas.
City Manager.- The Manager of the City of Corpus Christi, Texas.
City Secret s The City Secretary of the City of Corpus Christi, Texas,
or is du Ly authorized assistants or agents.
Construction Bond.- The approved form of security furnished by the Contractor
M his sureties as a guarantee of good faith on the part of-the-Contractor
to execute the work in strict accordance with the plans, specifications, and
terms of the contract.
Contract: The written agreement covering the performance of the work. The
contract includes the advertisement, proposal, specifications, including
special provisions, plans or working drawings, and any supplemental changes
or agreements pertaining to the work or materials therefore, and bonds.
Contractors The person, persons, partnership, company, firm, associationy
Ur corporation entering into contract for the execution of the work,. acting
directly or through a duly authorized representative.
G-1
Director of Public ➢Forks& The Director of Public Works of the City of
Corpus Christi, Texas, or his duly authorized assistants or agents.
Ena�n--e--e—rro The Head of Engineering and Construction of the City of Corpus
hr or his duly authorized assistants, agents, engineers, inspectors,
or superintendents, acting within the scope of the particular duties en-
trusted to them.
Maintenance Bonds The approved form of security furnished by the Contractor
and his sureties as a guarantee that he will maintain the work constructed
by him in good condition for the period of time required.
Mayor.- The Mayor of the City of Corpus Christi, Texas.
Plan or Plants.- All the drawings pertaining to the contract and made a part
thereof, including such supplementary drawings or addenda as the Engineer
may issue in order to clarify other drawings, or for the purpose of showing
changes in the work hereinafter authorized, or for showing details not
shown thereon. ,
Proposals The written statement or statements duly filed with the City
Secretary of the person, persons, partnership, company, firm association,,
or corporation proposing to do the work contemplated, including the
approved form on which the formal bids for the work are to be prepared.
Proposal Guarantees: The security designated in the advertisement and proposal
to be shed by each bidder as a guarantee of good faith to enter into
a contract with the City and execute the required bonds for the work contem-
plated after the work is awarded him.
Special Provisions& The special clauses setting forth conditions or require-
ments peculiar to the specific project involved, supplementing the standard
specifications, and taking precedent over arW conditions or requirements of
the standard specifications with which they are in conflict.
Specifications-. The directions, provisions, and requirements contained
Herein, together with the special provisions supplemental hereto, pertaining
to the method and manner of performing the work or to the qualities or
quantities of the material to be furnished under the contract.
Suretiesg The corporate bodies which are bound by such bonds as are rem
quwith and for the contractor. Said sureties engage to be responsible
for the entire and satisfactory fulfillment of the contract, and for aqy
and all regarements as set out in the specifications, contract or plans,
The Works: A11 work, including the furnishing of labor, materials, tools,
equipment, and incidentals, to be performed by the Contractor under the terms
of the contract.
Working Hours& Eight hours shall constitute a day's work in aqp one calendar
By�or al] laborers employed under the contract, and the contractor sha11L
not require or permit any laborer or other person to work more than eight hours
per calendar day under the contract, except in cases of emergency as provided
by law.
G®2
G. 1.2 ABBREVIATIONS:
Wherever the abbreviations defined herein occur on the plans, in the
specifications, contract, bonds, advertisement, proposal, or in any
other document or instrument herein contemplated or to which the specifi-
cations apply or may apply, the intent and meaning shall be as follows:
A.A.S.H.O.
American Association of
Lin.
Linear
State Highway Officials
Lb.
Pound
A.S.T.M.
American Society for
M.H.
Manhole
Testing Materials
Max.
Maximum
Asph.
Asphalt
Min.
Minimum
Ave.
Avenue
Mono.
Monolithic
Blvd.
Boulevard
No.
Number
C.I.
Cast Iron
%
Per dent
C.L.
Center Line
R.
Radius
C.O. •
Cleanout
Reinf.
Reinforced
Cone.
Concrete
Rem.
Remove
Cond.
Conduit
Rep.
Replace
Corr.
Corrugated
R/W or
Cu.
Cubic
'.R;_^of.W.
Right of Way
Culy.
Culvert
Sani.
Sanitary
Dia.
Diamenter
St.
Street or
Dr.
Driveway
Storm
Elev.
Elevation
Vol.
Volume
F.'
Fahrenheit
W.U.T.Co.
Western Union
Ft. or °
Foot or Feet
Telegraph Co.
Gal.
Gallon
Yd.
Yard
H.S.
Horeshoe
In. or "
Inch or Inches
Section G 2 — PROPOSAL REQUIREMENTS AND CONDITIONS
G 2.1 PROPOSAL FORM:
The City will furnish bidders with proposal forms, which will state
the general location and description of the contemplated work, and which
will contain an itemized list of the items of work to be done or materials
to be furnished, and upon which bid prices are asked. The proposal form
will provide for entering the amount of proposal guaranty.
G 2.2 QUANTITIES IN PROPOSAL FORM;
The quantities of the work and materials set forth in the proposal form or
on the plans approximately represent the work to be performed and materials
to 'be furnished, and are for the purpose of comparing the bids on a uniform
basis. Payment will be made by the City to the Contractor only for the
actual quantities of work performed or. materials furnished in accordance
with the plans and specifications, and it is understood that the quantities
may be increased or decreased as hereinafter provided without,in any way
invalidating the bid price.
G-3
G. 2.3 EXAMINATION OF PLANS, SPECIFICATIONS AND SITE OF THE WORKS
Bidders are advised that the plans, specifications, and other documents
on file with the City Secretary shall constitute all of the information
which the City will furnish Bidders are required, prior to submitting any
proposal, to read the specifications, proposal, contract and bond forms
carefully,to visit the site of the work, to examine carefully local
conditions, to inform themselves by their independent research, tests,
and investigation of the difficulties to be encountered and judge for
themselves of the accessibility of the work and all attending circumstances
affecting the cost of doing the work or time required for its completion,
and obtain all information required to make an intelligent proposal. No
information given by the City ol� any official thereof, other than that
shown on plans and contained in the specifications, proposal and other
documents, shall be 11i.nding upon the City. Bidders shall rely exclusively
upon their own estimates, investigations, tests and other data which are
necessary for full and complete information upon which the proposal may
be based. It is mutally agreed that submission of a proposal is evidence
that the bidder has made the examinations investigations, and tests required
herein.
G 2.4 PREPARATION OF PRO190SAL:
The bidder shall submit his proposal on the forms furnished by the City.
All blank spaces in the form shall be correctly filled in and the bidder
shall state the prices, written in ink, both in words and numerals, for
which he proposes to do the work contemplated or furnish the material
required. Such prices shall be written distinctly legible. In case of
discrepancy between the price written in words and in the price written in
figures, the price written incWordhahbaja•:governdf Xfcpnopasal iab®mbtA ted
by an individual, his name must be signed by him or his duly authorized
agent. If the proposal is submitted by a firm, association or partnership,
the name and address of each member must be given and the proposal signed
by a member to the firm, association, or partnership, or person duly
authorized. If proposal is submitted by a company or corporation, the
company or corporate name and business address must be given, and the
proposal signed by an offical or duly authorized agent. Powers of attorney
authorizing agents or others to sign proposals must be properly certified
and must be in writing and submitted with the proposal.
G 2.5 PROPOSAL GUARANTY
No proposal will be considered unless it is accompanied by a cashier's
check on any State or National Bank in the City of Corpus Christi, or
acceptable Bidder's Bond, payable unconditionally to the Mayor of the
City of Corpus Christi, Texas. The'eashier's check or Bidder's Bond'shall
be in the amount of not less than five (5%) per cent of the total amount
of the bid. The proposal guaranty is required by the City as evidence of
good faith and as a guarante that if awarded the contract, the bidder will
execute the contract and furnish the required bonds within ten (10) days
after the receipt of acceptance.
G 2.6 FIIAING OF PROPOSALS:
No proposal will be considered unless it is filed with the City Secretary
at his office in the City Ball, Corpjis Christi, Texas, within the time
G-4
limit for receiving proposals as stated in the advertisement, ,Each
proposal shall be in a sealed envelope, plainly marked with word
"Proposal" and the name or description of the project as designated in
the "Advertisement.?'
G 2.7 WITHDRAWING PROPOSALS-
Proposals filed with the City Secretary can not be withdrawn or modified
prior to the time set for opening proposals. Request for non — consideration
of proposals must be made in writing addressed to the City Council and
filed with the City Secretary prior to the time set for opening proposals.
After other proposals are opened and publicly read, the proposal for
which withdrawal is properly requested may be returned unopened.
G 2.8 OPENING PROPOSALS-
The proposals filed with the City Secretary will be opened in the presence
of the City Council at the time stated in the advertisement and publicly
read aloud, and shall thereafter remain on file with the City Secretary,
No contract will be entered into based on such proposals until after forty —
eight (48) hours shall have elapsed.
G 2.9 IBB.EGULAR PROPOSALS-
Proposals will be considered irregular if they show any omissions,'altera-
tions of form, additions, or conditions not called for, unauthorized
alternate bids or irregularities of any kind. However, the City reserves
the right to waive any irregularities and to make the award in the best
interest of the City.
C 2010 REJECTION OF PROPOSALS -
The City reserves the right to reject any or all proposals and all
proposals submitted are subject to this reservation. Proposals may be
rejected for any of the following specific reasons.
(a Proposal received after the time limit for receiving proposals as
stated in the advertisement.
(b) Proposal containing any irregularities.
(o) Unbalanced value of any items.
G 2.11 DISQUALIFICATION OF BIDDERS.
Bidders may be disqualified and their proposals not considered for any
of the following specific reasons:
(a) Reason for believing collusion exists among the bidders.
(b) Reasonable grounds for believing that any bidder is interested in
more than one proposal for the work contemplated.
(c) The bidder being interested in any litigation against the City.
(d) The bidder being in arrears on any existing contract or having
defaulted on a previous contract.
(e) back of compentency as revealed by the financial statement, experience
and equipment questionnaires, etc.
(f) Uncompleted work which in the judgment of the City will prevent or
hinder the prompt completion of additional work if awarded.
(g) Failure to submit financial statement, experience and equipment
questionnaires.
G-5
SECTION 3 - AWARD AND EXECUTION OF CONTRACT:
G 3.1 CONSIDERATION OF CONTRACT:
After proposals are opened, the proposals will be tabulated for compar-
ison on the basis of the bid prices and quantities shown in the proposal.
Until final award of the contract, the City reserves the right to reject
any or all proposals, to waive technicalities, and to readvertise for new
proposals, or proceed to do the work otherwise in the best interest of
the City.
G 3.2 AWARD OF CONTRACT:
The City reserves the right to withhold the award of the contract for a
reasonable period of time for date of opening proposals and no award
will be made until after investigations are made as to the responsibilities
of the low bidders. In no case will contract be awarded until at least
forty -eight (48) hours shall have elapsed for time of opening proposals.
G 3.3"RETURN OF'PROPOSAL GUARANTYs
As soon as proposal prices have been tabulated for comparison of bids, the
City may, at its discretion, return the proposal guaranties accompanying
the proposals which, in its judgment, would not be considered in the
award; all other proposal guaranties will be retained by the City until
the required contract and bonds have been executed* after which they will
be returned. No proposal guaranties will be returned until at least forty -
eight (48) hours shall have elapsed from time of opening proposals.
G 3.4 SURETY BONDS -
With the execution and delivery of the contract, the contractor shall
furnish and file with the City in the amounts herein required, the follow-
ing surety bonds -
(a) Construction Bond-
A good and sufficient construction bond in an amount equal to one
hundred percent of approximate total amount bf the contract, as
evidenced by the proposal tabulation or otherwise, guaranteeing the
full and faithful execution of the work and performance of the
contract, and for the protection of the City and all other persons
against damage by reason of negligence of the contractor, or
Improper execution of the work, or the use of inferior materials;
This construction bond shall guarantee the payment for all labor,
materials, and equipment used in the construction of the work.
(b) Maintenance Bond:
When in the special provisions a separate maintenance bond is
required for the work, the bond shall be for the period of time
stated in the special provisions. The maintenance time dates from
and aiddeaftenedafecoiR .eo3hpletidn:.bf the work and acceptance by-the City.
G-6
(c) Other Bonds:
Other bonds, if required in the Special Provisions.
(d) Sureties:
No sureties will be accepted by the City who are now in default or
delinquent on any bonds or who are interested in any litigation
against the City. All bonds shall be made on forms furnished by
thb�Qity; and].Aha11 be executed by not less than two sureties, one
of which shall be an approved surety company authorized to do business
in the State of Texas and acceptable to the City, and the other
shall be a resident of Nueces County, Texas. Each bond shall be
executed by the contractor and the sureties. .
Should any surety on the contract be determined unsatisfactory at
any time by the City Council, notice will be given the contractor
to that effect, and the contractor shall immediately provide a
new surety satisfactory to the City Council. No payment will be
made under the contract until the new surety or sureties, as required,
have qualified and been accepted by the City Council. The contract
shall not be operative nor will any payments be due or paid until
approval of the bonds have been made by the City Council.
G 3.9 EXECUTION OF CONTRACT:
The person or persons, partnership, company, firm, association, or corpor-
ation to whom a contract is awarded shall within ten days after such award
sign the necessary agreements entering into the required,contract with the
City. No contract shall be binding on the City until it has been attested
by the City Secretary and approved as to form by the City Attorney,
executed for the City by the City Manager, and delivered to the contractor.
G 3.6 FAILURE TO EXECUTE CONTRACT:
The failure of the bidder to execute the required bonds or to sign the
required contract within ten (10) days after contract is awarded shall be
considered by the City as an abandonment of his proposal and the City may
annul the award. By reason of the uncertainty of the market prices of mater-
ials and labor, and it being impracticable and difficult to deterii.ne
accurately the amount of damages accruing the City by reason of said
bidder's failure to execute said bonds and contract within the (10) days
the proposal guaranty accompanying the proposal shall be the agreed amount
of damages which the City will suffer by reason of such failure on the
part'of the bidder, and shall thereupon immediately be forfeited to the
City. The filing of a proposal will be considered as an acceptance of
this provision.
SECTION G 4 - SCOPE OF WORK
G 4.1 INTENT OF PLANS AND SPECIFICATIONS:
The intent of the plans and specifications is to prescribe a complete
work or improvement which the contractor undertakes to do in full compliance
with the plans, specifications, special provisions, proposal, and contract.
G-7
The contractor shall do all work as provided in the plans, specifications
special provisions, proposal and contract, and shall do such additional
extra work as may be considered necessary to complete the work in a
satisfactory and acceptable manner. The contractor shall furnish all
labor, tools, a:materials, machinery, equipment, and incidentals, necessary
to the prosecution of the work.
G 4.2 SPECIAL PROVISIONS:
Should any work or conditions which are not thoroughly satisfactorily
stipulated or covered by the general or standard specifications be antici-
pated on any proposed work, "Special Provisions' for such work may be pre-
pared by the City previous to the time 6)5 receiving the bids, and shall
be considered as a part of the specifications and contract.
G 4.3 INCREASED OR DECREASED QUANTITIES OF WORK:
The City reserves the right to alter the quantities of the work to be
performed or.to extend or shorten the improvements at any time when and
as found necessary and the contractor shall perform the work as altered,
increased or decreased at the contract unit ?.prices. Such increased or de-
erease& quantity shall not be more than twenty -five (25 %) percent of the
contemplated quantity of such item or items. No allowance will be made for
any change in anticipated profits nor shall such changes be considered as
waiving or invalidating any conditions or provisions of the contract and
bond.
G 4.4 ALTERATION OF PLANS AND SPECIFICATIONS:
The City reserves the right to make such changes in the plans and speci-
fications and in the character of the work as may be necessary or d6sirable
to insure completion in the most satisfactory manner, provided such
changes do not materially alter the original plans and specifications or
change the general nature of the work as a whole. Such changes shall
not be considered as waiving or invalidating any condition or provision
of the contract and bond.
G 4.5 EXTRA WORK: `
When any work is necessary to the proper completion of-the project for
which no prices are provided for in the proposal and contract, the con-
tractor shall do such work, but only when and as ordered in writing by
the Engineer. Payment for extra work will be made as hereinafter provided.
G 4.6 SALVAGE:
Upon the completion of the work and before acceptance and final payment
will be made, the contractor shall clean and remove from the site of the
work surplus and discarded materials, temporary structures, and debris
of every kind. He shall leave the site of the work in a neat and orderly
condition. Surplus and waste materials removed from the site of the
work shall be disposed of at locations satisfactory to the Engineer.
G-8
SECTION G 5 - CONTROL OF THE WORK AND MATERIALS:
G 5.1 "AUTHORITY OF THE ENGINEER:
All'work shall be performed under the supervision of the Engineer in a
workmanlike manner and to his satisfaction. He shall decide all questions
which arise as to the quality and acceptability of materials furnished,
work performed, manner of performance, rate of progress of the work, se-
quence of the construction, interpretation of the plans and specifications,
acceptable fulfillment of the contract, compensation, mutual rights between
contractors under these specifications and suspension of the work. He
shall determine the amount and quality of the work performed and materials
furnished, and his decisions and estimates shall be final. His estimate
in such event shall be a condition precedent to the right of the Contractor
to receive money due him under the contract.
G 5.2 CONFORMITY WITH PLANS:
All work shall conform to the lines, grades, cross - sections, and dimensions
shown on the plans. Any deviation from the plans which may be required by
the exigencies of construction will be determined by the Engineer and
authorized by him for writing.
G.5.3 EXISTING STRUCTURES:
The plans show the location of all known surface and subsurface structures.
However, the location of many gas mains, water mains, conduits, sewers,
etc., ig tmkmpwn and the City assumes no responsibility for failure to
shown any or all these structures on the plans or to show them in their exact
location. It is mutually agreed such failure will not be considered
sufficient basis for claims for additional compensation for extra work
or for increasing the pay quantities in any manner whatsoever, unless the
obstruction encountered is such as to necessitate changes in thee lines or
grades, or requires the building of special work, provision for which is
not made in the plans and proposal, in which case the provisions in these
specifications for extra work shall apply.
G 5.4 COORDINATION OF PLANS, SPECIFICATIONS,'PROPOSAL & SPECIAL PROVISIONS:
The plans, these specifications, the proposal, special provisions, and all
supplementary documents are intended to describe a complete work and are
essential parts of the contract. A requirement occurring in any of them
is binding. In case of discrepancies, figured dimensions shall govern over
scaled dimensions; plans shall govern over specifications; special provi-
sions shall govern over both generAl and standard specifications, and plans
and quantities shown on the plans shall govern over those shown in the
proposal. The Contractor shall not take advantage of any apparent error
or omission in the plans and specifications and the Engineer shall be
permitted to make such corrections or interpretations as may be deemed
necessary for the fulfillment of the intent,of the plans and specifications.
In the event the Contractor discovers an apparent error or discrepancy, he
shall immediately call this to the attention of the Engineer.
G 5.5 COOPERATION OF CONTRACTOR:
The Oontractor will be supplied with three copies of the plans and specifi-
cations. The Contractor shall have available on the work at all times one
copy of said plans and specifications. The Contractor shall give to the
..,
_'—G-9 .�
work the consistent attention necessary to facilitate the progress thereof,
and he�shall cooperate with the Engineer, his inspectors, and with other
Contractors in every way possible. The Oonktractor shall provide a competeht
superintendent on the work at all times, who is fully authorized as his
agent on the work. Such superintendent shall be capable of reading and
understanding the plans and specifications and,shall receive and fulfill
instructions from the Engineer or his authorized representatives. The Con-
tractor shall provide all facilities to enable the Engineer and his
inspectors to inspect the workmanship and materials entering into the work.
G -5.6 CONSTRUCTION STARES:
The Engineer will furnish the Contractor with all lines, grades and measure-
ments necessary to the proper prosecution and control of the work contracted
for under these specifications. Such stakes or markings as the Engineer
may. establish either for his own use or the Contractor's gukdance shall be
preserved by the contractor until authorized by the Engineer to remove same.
G 5.7 SOURCE OF SUPPLY OF MATERIALS:
The materials shall be the best procurable, as required by the plans,
specifications and special provisions. The Contractor shall not start
delivery of materials until the Engineer has approved the source of supply.
Only materials conforming to these specifications shall be used in the work
and such - materials shall be used only after written approval has been given
by the Engineer and only so long as the quality of said materials remains
equal to the requirements of the specifications. The Contractor shall
furnish approved materials from other sources, if for any reaosn the pro-
duct from any source at any time Before commencement or during the prosecu-
tion of the work proves unacceptable. After approval, any material which
has become mixed with or coated with dirt or any other foreign substances
during its delivery and handling will not be permitted to be used in the
work.
G 5.8 SAMPLES AND TESTS OF MATERIALS:
Where in the opinion of the Engineer or as called for in the specifications,
tests of materials are necessary, such tests will be made at,the expense
of the City unless otherwise provided. The failure of the City to make
any tests of materials shall in no way relieve the Contractor of his
responsibility of furnishing materials conforming to the specifications,.
Tests, unless otherwise specified, will be made in accordance with the
latest methods of the American Society for Testing Materials. The Con-
tractor shall provide such facilities as the•Engineer'may require for
collecting and forwarding samples and shall not use the materials
represented by the samples until tests have been made. The Contractor
shall furnish adequate samples without charge.
G 5.9 STORAGE OF MATERIALS:
Materials shall be stored so as to insure the preservation of their quality
and fitness for the work. When directed by the Engineer, they shall be placed
G -10
on wooden platforms or other hard, clean surfaces and not on the ground,
and shall be placed under cover when directed. Stored materials shall be
placed and located so as to facilitate prompt inspection.
G 5.10 INSPECTION:
The Contractor shall furnish the Engineer with every reasonable facility
for ascertaining whether or not the work performed was in accordance with
the requirements and intent of the plans and specifications. Any work
done or materials used without suitable supervision or inspection by the
Engineer may be ordered removed and replaced atlithe Contractor's expense.
G 5.71 REMVAL OF DEFECTIVE AND UNAUTHORIZED WORK:
All work which has been rejected or condemned shall be repaired or if
it cannot be repairedo eAtlaf abtaii�y, ittr ,bbiL.lbberromavddanddrreluaedd
at the Contractor's expense. Defective materials shall be immediately
removed from the site of the work. Work done without line and grade
having been given, work done beyond the lines or not,in conformity with
the grades shown on the plans or as given,' save as herein provided,
work done without proper inspection or any' extra or unclassified work
done without written authority and prior agreement in writing as to prices
shall be done at the Contractor's risk, and will be considered unauthorized,
and at the option of the Engineer may not be measured and paid for, and
may be ordered removed at the Contractor's expense. Upon failure of the
Contractor to repair satisfactorily or to remove and replace, if so
directed, rejected, unauthorized or condemned work or materials immediately
after receiving notice from the Engineer, the Engineer will, after giving
written notice to the Contractor have the authority to cause defective
work to be remedied or removed and replaced, or to cause unauthorized
work to be removed and to deduct the cost thereof from any moneys due
or to become due the Contractor.
G 5.12 FINAL INSPECTION:
The Engineer will make final inspection of all work included in the con-
tract as soon as practicable after the work is completed and ready for
acceptance. If the work is not acceptable to the Engineer at the time of
such inspection, he will inform the Contractor as to the particular defects
to be remedied before final acceptance will be made.
SECTION G 6 - LEGAL RELATIONS AND PUBLIC RESPONSIBILITY.
G 6.1 LAWS TO BE OBSERVED:
The Contractor shall at all times observe and comply with all Federal and
State Laws, and City ordinances and regulations which in any manner affect
the conduct of the work and shall observe and comply with all orders, laws,
ordinances, and regulations which exist or which may be enacted later by
bodies having jurisdiction or authority for such enactment. No plea of
misunderstanding or ignorance thereof will be considered. The Contractor
and his sureties shall indemnify and save harmless the City and all its
officials, agents and employees against any claims or liability arising
G-11
from or based on the violation of any such law, ordinance, regulation or
order, whether by himself or employees.
G 6.2 PERMITS AND LICENSES
The-Contractor shall procure all permits and licenses, pay all charges and
fees, and give all notices necessary and incident to the due and lawful
prosecution of the work.
G 6,3 PATENTED DEVICES, MATERIALS AND PROCESSES:
If the Contractor is requited or desires to use any design, device material
or process covered by letters, patent or copyright, he shall provide for
such use by suitable legal agreement with the patentee or owner. It is
mutually agreed and understood that without exception, contract prices
shall include all royalties or costs arising from patents, trademarks
and copyrights in any way involved in the work, The Contractor and his
sureties shall indemnify and save harmless the City from any and all claims
for infringement by reason of the use of any such patented design, device,
material or process or any trade -mark or copyright in connection with the
work agreed to be performed under this contract and shall indemnify the
City for any cost, expense, or damage which it may be obliged to pay b�
reason of such infringement at any time during the prosecution of the work
or after completion of the work.
G 6.4 SANITARY PROVISIONS:
The Contractor shall establish and enforce among his employees such regu-
lations in regard to cleanliness and disposal of garbage and waste as
will tend to prevent the inception and spread of infectious or contagious
diseases and to prevent effectively the creation of a nuisance about the
work or any property either public or private, and such regulations as
are required by the Engineer shall be put into immediate force and effect
By the Contractor. The necessary sanitary conveniences for the use of
laborers on the work, properly secluded from public observation, shall be
constructed and maintained by the Contractor in such manner and at such
points as will be approved by the Engineer, and their use shall ,be strictly
enforced by the Contractor. All sanitary laws and regulations of the State
of Texas and the City of Corpus Christi, shall be stisb#yccapbl1edw*1bb.
G 6,5 PUBLIC CONVENIENCE AND SAFETY:
Materials stored about the work shall be so placed and the work shall at
all times be so conducted as to cause no greater obstruction to the travel-
ing public than is considered necessary by the Engineer. The Contractor
shall make provisions by bridges or otherwise at all cross streets, high-
ways, sidewalks, and private driveways for the free passage of pedestrains
and vehicles, provided that where bridging is impracticable or unnecessary
in the opinion of the Engineer, the Contractor may make arrangements satis-
factory to the Engineer for the diversion of traffic and shall at his own
expense, provide all material and perform all work necessary for the con-
struction and maintenance of roadways and bridges for the diversion of
traffic. Sidewalks must not be obstructed except by special permission
of the Engineer. The materials excavated, the construction materials or
plant used in the construction of the work shall be placed so as not to
endanger the work, or prevent free access to all fire hydrants, water valves
�._ _ G-12
gas valves, manholes for telephone, telegraph, signal or electric conduits,
sanitary or storm sewers, and fire alarm or police call boxes in the
vicinity. The City reserves the right to remedy any neglect on the part
of the Contractor as regards the public convenience and safety which may
come to its attention, after twenty -four Hours' notice in writing to the
Contractor, save in cases of emergency when it shall have the right to
remedy any neglect without notice, and in either case, the cost of such
work done by the City shall be deducted from moneys due or to become due
the Contractor. The Contractor shall notify the Fire and Police Department
Headquarters when any street is closed or obstructed and when directed by
the Engineer shall keep any street or streets in condition for unobstructed
use by fire or police apparatus. Where the Contractor is required to con-
struct temporary bridges or make other arrangements for crossings over
ditches or streams, his responsibility for accidents Mall include the
roadway approaches as well at the structures of such crossings.
G 6.6 PRIVILEGES OF CONTRACTOR IN STREETS, ALLEYS, AND RIGHTS OF WAY:
F6r the performance of the contract, the Contractor will be permitted to
occupy such portions of streets or alleys, or other public places or
other rights of way as provided for in the ordinances of the City, as
shown on the plans or as permitted by the Engineer. A reasonable amount
of tools, materials and equipment for construction purposes may be stored
in such space, but not more than is necessary to avoid delay in the con-
struction. Excavated and waste materials shall be piled or stacked in such
a way as not to interfere with spaces that may be designated to be left free
and unobstructed, nor inconvenience occupants or adjoining property. Other
contractors of the City may, for all purposes required by their contracts
enter upon the work and premises used by the Contractor, and the Contrac-
tor shall give to other contractors of the City all reasonable facilities
and assistance for the completion of adjoining work. Any additional grounds
desired by the Contractor for his use shall be provided by;-him at his own
cost and expense.
G 6.7 RAILWAY CROSSINGS:
Where the work encroaches upon any right of way of any railway, the City
will secure the necessary easement for the work. Where railway tracks
are to be crossed, the Contractor shall observe all the regulations and
instructions of the railway company as to methods of doing the work, or
precautions for safety or property and the, public. A11 negotiations with
the railway company, except for right -of -way, shall be made by the con-
tractor. The railway company shall be notified by the Contractor not less
than five (5) days previous to time of his intentions to begin the work.
The Oontractor will not be paid direct compensation for such railway
crossing, but shall receive only the compensation for such railway crossing,
as set out in the proposal.
G-13
G 6.8 BARRICADES, LIGHTS AND WATCHMEN:
Where the work is carried on in or adjacent to any street, all:pyyoorppbbite
place, the contractor shall at his own cost and expense furnish and erect
such barricades, fences, lights, and danger signals, shall provide such
watchmen, and shall take such other precautionary measures for the pro-
tection of persons or property and of the work as are necessary. Barri-
cades shall be painted in a color that till be visible at night. From sun-
set to sunrise the contractor shall furnish and maintain at least one light
at each barricade. A sufficient number of barricades shall be erected to
keep vehicles from being driven on or into any work under construction. 'The
contractor shall furnish watchmen in sufficient numbers to protect the w6rk.
The contractor will be held responsible for all damage to the work due to
failure of barricades, signs, lights, and watchmen to protect it, and
when ever evidence is found of such damage, the Engineer may order the
damaged portion immediately removed and replaced by the contractor at
his cost and expense. The contractor's responsibility for the maintenance
of barricades, signs and lights, and for providing watchmen, shall not
cease until the project shall have been accepted by the City.
G 6,9 USE OF EXPLOSIVES:
Should the contractor elect to use explosives in the prosecution of the
work, the utmost care shall be exercised so as not to endanger life of
property, The City shall not be held liable for damages done by the con-
tractor in the use of explosives. The contractor shall notify the proper
representatives of any public service corporation, any company or any indi-
vidual, not less than eight (8) hours iri advance of the use of explosive,
which might damage or endanger their or his property along or adjacent to
the work. Wherever explosives are stored or kept, they shall be stored in
a safe and secure manner and all storage places shall be plainly marked
"DANGEROUS EXPLOSIVES ", and shall be under the care of a competent watch-
man at all times.
G 7.10 PROTECTION AND RESTORATION OF PROPERTY:
Where the work passes over or through private property, the City will pro-
vide such right -of -way. The contractor shall not enter upon private
property for any purpose without having previously obtained permission from
the owner. The contractor shall be responsible for the preservation of, and
shall use every precaution to prevent damage to all trees, shrubbery, plants,
lawns, fences, culverts, bridges, pavements, driveways, sidewalks, etc., to
all water, sewer, and gas lines, to all conduits, to all overhead, pole lines,
or appurtenances thereof, and to all other public or private property-along or
adjacent to the work. The contractor shall notify the proper representatives
of any public utility, corporation, company or individual not less than forty -
eight (48) hours in advance of any work which might damage'or interfere with
the operation of their or his property along or adjacent to the work. The
contractor shall be responsible for all damage or injury to property of any
character resulting from any act, omission, neglect, or misconduct in the
manner or method of executing the work, or due to his non - execution of the
work, or at any time due to defective work or materials, and said respon-
sibility shall not be released until the work shall have been completed and
accepted. When and where any direct or indirect damage or injury is done to
public or private property on account of any act, omission, neglect or
G -34
misconduct in the execution of the work or in consequence of the non-
execution thereof on the part of the Contractor, he shall restore or have
restored at his own_ cost and expense such property to a condition similar
or equal to that existing before such damage or injury was done, by repair-
ing, rebuilding, or otherwise restoring as may be directed, or he shall make
good such damage from injury in a manner acceptable to the owner of the
Engineer. In case of failure on the part of the Contractor to restore such
property or make good such damage or injury, the Engineer may after forty
(40) hours written notice, finder ordinary circumstances and without notice
when a nuisance or hazardous condition results, proceed to repair, rebuild,
or otherwise restore such property as may be determined necessary, and the cost
thereof will be deducted from any moneys due or to become due the contractor t i
under his contract.
G 6,11 RESPONSIBILITY FOR DAMAGE CLAIMS: W
The Contractor and his sureties shall indemnify and save harmless the City
and all its officials, agents, and employees from all suits, action, or
claims of any character, name, and description brought for, or on account
o£, any injuries or damages received or sustained by any person or persons
or property, by or from the said contractor or his employees or by or in
consequence of any negligence in safeguarding the work or through the use
of unacceptable materials in constructing the work, or by or on account of
any act or omission, neglect or misconduct of the said contractor, or by or
on account of any claims or amounts recovered under the Workmen's Compen-
sation Law or any other law, ordinance, order or decrees, and so much of
the money due the said contractor under and by virtue of his contract as
shall be considered necessary by the City may be retained for the use of
the City, or in case no money is due, his sureties shall be held until suit
or suits, action or actions, claim or claims for injury or damages as afore-
said shall have been settled and satisfactory evidence to that effect fur-
nished the City.
G 6.12 CONTRACTOR'S CLAIM FOR DAMAGES:
Should the contractor claim compensation for any alleged damage by reason
of the acts or omissions of the City, he shall within three (3) days after
sustaining such alleged damage make a written statement to the Engineer,
setting out in detail the nature of the alleged damage, and on or before
the 25th day of the month succeeding that in which any such damage is
claimed to have been sustained; the contractor shall file with the Eng-
ineer an itemized statement of the details and amount of such alleged Cara
damage and, upon request shall give the Engineer access to all books of
accounts, receipts, vouchers, bills of lading, and other books or papers
containing any evidence as to the amount of such alleged damage. Unless
such statements shall be filed as hereinabove required, the contractor's
claim for compensation shall be waived and he shall not be entitled to
payment on account 6f such damage.
G 6.13 PUBLIC UTILITIES AND OTHER PROPERTY TO BE CHANGED:
In case it is necessary to change or move, the property shall not be moved
or interfered with until ordered to do so by the Engineer. The right is
reserved to the owner of public utilities to enter upon the limits of the
contract for the purpose of making such changes or repairs of their property
that may be necessary by performance of the contract. The City reserves the
right of entering upon the limits of the contract for the purpose of
repairing or relaying sewer, gas -and water lines and appurtenances, repair-
ing structures, etc., and making other repairs, changes, or extensions to
any City property.
G 6.34 TEMPORARY SEWER AND DRAIN CONNECTIONS -
When existing sewer have to be taken up or removed, the contractor shall
at his own cost and expense provide and maintain temporary outlets and
connections for all private or public drains or sewers. The contractor
shall also take care of all sewage and drainage -which will be received
from these drains and sewersy and for this purpose he shall provide and
maintain, at his own expense, adequate pumping facilities and temporary
outlets or diversions. The Contractor, at his own expense, shall con-
struct such troughs, pipes, or other structures necessary, and be prepared
at all times to dispose of drainage and sewage received from these
temporary connections until such time as the permanent connections are built
and in service. The existing sewers and connections §hall be kept in service
and maintained under the contract, except where specified or ordered to
be abandoned by the Engineer. All water or sewage shall be disposed of in
a satisfactory manner so that no nuisance is created, and so that the
work under construction will be adequately protected.
G 6.15 ARRANGEMENT AND CHARGE FOR WATER FURNISHED BY THE CITY:
Where contractor desires to use City Water in connection with any construc-
tion work, he shall make complete and satisfactory arrangements with the
Corpus Christi City Water Works for so doing.
G 6,16 USE OF FIRE HYDRANTS-
No person shall open, turn off, interfere with, attach any pipe or hose -
to, or connect anything with any fire hydrant, stop valve, or stop cock,
.or tap and water main belonging to the City, unless duly authorized to
do so by the City of Corpus Christi Water Department Superintbndent.
G 6.17 USE OF A SECTION OF PORTION OF THE WORK-
Wherever in the opinion of the Engineer any section or portion of the work
or any structure is in suitable condition, it may be put into use upon the
written order of the Engineer, and such usage shall not be held to be in
any way an acceptance of said work or structure or any part thereof or as
a waiver of any of the provisions of these specifications or the contract
pending final completion and acceptance of the work; all necessary repairs
and removals of any section of the work so put into use, due to defective
materials or workmanship or to operations of the contractor shall be
performed by the contractor at his own cost and expenses.
G -16
G 6.18 CONTRACTOR'S RESPONSIBILITY FOR THE WORK.
Until written acceptance by the Engineer, as provided for in these speci-
fications the work shall be under the charge and care of the contractor
and he shall-take every necessary precaution to prevent injury or damage
to the work or any part thereof by action of the elements or from any
other cause whatsoever, whether arising from the execution or non- execut-
ion of the work. The contractor shall rebuild, repair, restore and make
good at his own cost and expense, all injuries or damages to any portion
of the work occasioned by any of the hereinabove causes.
G 6,19 NO WAIVER OR LEGAL RIGHT.
Inspection of the Engineer, any order, measurement, quantity or certificate
by the Engineer, any order by the City for payment of money, any pay-
ment for or acceptance of any work, or any extension of time, or any
possession taken by the City, shall not operate as a waiver of any pro-
visions of the contractor or any power therein reserved to the City of
any rights or damages therein provided. Any waiver of any breach of con-
tract shall not be held to be waiver of any other or subsequent breach.
The City reserves the right to correct any error that may be discovered
in any estimate that may have been paid and to adjust the same to meet
the requirements of the contract and specifications, The City reserves
the right tz claim and recover by process of law sums as may be suffi-
cient to correct any error or make good any deficiency in the work
resulting from such error, dishonesty or collusion, upon the conclusive
proof of collusion or dishonesty by the contractor or his agents and
the Engineer or his assistants, discovered in the work after the final
payment has been made.
SECTION G 7 - PROSECUTION AND PROGRESS.
G 7.1 SUBLETTING THE WORK-
The contractor shall perform with his own organization and with the assistance
of workmen under his immediate superintendence, work of a value not less than
(75) percent of the value of all work embraced in the contract exclusive
of items not commonly found in contracts for similar work,-or which require
highly specialised knowledge, craftsmanship and /or equipment not ordinarily
available in the organizations of contractors performing work of the
character embraced in the contract.
Nor portion of the work covered by these specifications and contract except
contracts for purchase and delivery of materials, shall be sublet without
written permission of the City. If the contractor sublets any part of the
work to be done under this contract, he will not under any circumstances
be relieved of his responsibility and obligations. All transactions of the
Engineer will be with the contractor. Subcontractors will be considered
only in the capacity of employees or workmen, and shall be subject to the
same requirements as to character and competency. The City will not recog-
nize any subcontractor on the work. The contractor shall at all times
when the work is in operation be represented either in person or by a
qualified superintendent or other designated representative.
G 7.2 ASSIGNMENT OF CONTRACT-
The contractor shall not assign, transfer, convey or otherwise dispose of
G-17
the contract or his right, title or interest in or to the same, or any
part thereof, without the previous consent of the City expressed by resolu-
tion of the City Council and concurred in by-the sureties. If the contract-
or does without such previous consent assign, transfer, convey or mbher
wise dispose of the contract or of his rights, title or interest therein,
or any part thereof to any person or persons, partnership, company, firm
or corporation, or by bankruptcy, voluntary or involuntary, or by assign-
ment under the insolvency laws of any state; attempt to dispose of the
contract or make default in or abandon said contract, then the contract
may at the option of the City be revoked and annulled, unless the sureties
shall successfully complete said contract, and any moneys due or to become
due under said contract shall be retained by the City as liquidated damages
for the reason that it would be impracticable and extremely difficult to
fix the actual damages.
G 7.3 PROSECUTION OF THE WORK:
The contractor shall begin the work to be performed under this contract
within the time limit stated in these specifications, and shall conduct
the work in such a manner and with sufficient equipment, materials and
labor as is necessary to insure its completion within the time limit.
The sequence of all construction operations shall be at all times as
directed by or approtred by the Engineer. Such direction or approval by the
Engineer shall not relieve the contractor from the full responsibility of
the complete performance of the contract. Should the prosecution of the
work be discontinued by the contractor, he shall notify the Engineer at
least twenty -four (24) hours in advance of resuming operations.
G 7.4 LIMITATION OF OPERATIONS:
The work shall be so conducted as to create a minimum amount of inconveni-
ences to the public. At any time when in the judgment of the Engineer the
contractor has obstructed or closes or is carrying on operations on a
greater portion of the street or public way than is necessary for the
proper execution of the work, the Engineer may require the contractor to
finish the sections on which work is in progress before operation's are
started on any additional section.
G 7.5 CHARACTER OF WORKMFN AND EQUIPMENT -
The contractor shall employ such superintendents, foremen and workmen as are
careful and competent, and the Engineer may demand the dismissal of any
person or persons employed by the contractor in, about or on the work who
shall misconduct himself or be incompetent or negligent in the proper
performance of his or their duties or neglect or Fefuse to comply with the
directions of the Engineer, and such person or persons shall not be
employed thereon again without the written consent of the Engineer. All
workmen shall have sufficient skill and experience to perform properly the
work assigned them. The contractor shall furnish such equipment as is
considered necessary for the prosecution of the work in an acceptable manner,
and at a satisfactory rate of progress. All equipment, tools and machinery
used for handling materials and executing any part of the work shall be
subject to the approval of the Engineer, and shall be maintained in a
satisfactory working condition. Equipment on any portion of the work shall
be such that no injury to the work or adjacent property will result from
its use.
G-18
G 7.6 DAY'S WORK: WORKING HOURS
Work shall be done only during the regular and commonly accepted and pres-
cribed working hours.. No work shall be done nights, Sundays or regular holi-
days, unless special permission is given by the Engineer. 'Eight (8) hours
shall consitute a day's work in any one (1) calendar day for all workmen
and laborers employed on the work and under the contract, and the contractor
shall not require or permit any workmen or laborer to work more than eight
hours per calendar day, except in cases of emergency as provided by law.
G 7.7 TIME OF COMMENCEMENT AND COMPLETION:
The contractor shall commence the work within the time specified, and the
rate of progress shall be such that the whole work will be performed and
the premises cleaned up in accordance with the contract, plans and speci-
fications with the time limit specified in the contract, unless an exten-
sion of time be made in the manner hereinafter specified.
G 7.8 EXTENSION OF TIME OF COMPLETION:
The contractor shall be entitled to an extension of time as provided herein
only when claim for such extension is gubmitted to the City in writing by
the contractor within seven (7) days from and after the time when any
alleged cause of delay shall occur, and then only when such claim is
approved by the City. In adjusting the contract time for the completion of
the project, unforeseeable causes beyond the control and without the
fault or negligence of the contractor, including but not restricted to
inability to obtain supplies and materials, acts of God, or the public
enemy, acts of the owner, fires, floods, epidemics, quarantine restrictions,
strikes, freight embargoes, unusually severe weather conditions or delays
of subcontractors due to such causes. If the satisfactory execution and
completion of the contract should require work and materials in a greater
amount or quantities than those set forth in the contract, then the
contract time shall automatically be increased in the same proportion
as the cost of the additional work bears to the cost of the original work
contracted for. No allowance will be made for delays or suspension of the
prosecution of the work due to the fault of the contractor.
G 7,9 FAILURE TO COMPLETE ON TIME:
The time of completion is the essence of the contract. For each calendar
day that any work shall remain uncompleted after the time specified in the
proposal and contract, or the increased time granted by the City, or
as automatically increased by additional work or materials ordered after
the contract is signed, the sum per day given in the following schedule,
unless otherwise specified in the special provisions, will be deducted
from the moneys due the contractor, not as a penalty but as liquidated
damages.
Amount of Contract
Amount of Liquidated
Damages per day
Less than
5,000.00
15.00
5,000.00 to
15,000.00
17.00
$ 15,000.00 to
25,000.00
20.00
25,000.00 to
50,000.00
25.00
50,000.00 to
100,000.00
35.00
More than
100,000.00
50.00
G -19
The sum of money thus deducted for such delay, failure or non= completion
is not to be considered as a penalty, but shall be deemed, taken and
treated as reasonable liquidated damages, since it would be impracticable
and extremely difficult to fix the actual damages.
G 7.10 SUSPENSION BY COURT ORDER:
The contractor shall suspend such part of parts of the work ordered by
the count, and will'not be entitled to additional compensation by virtue
of such court order. Neither will he be liable to the City in the event
the work is suspended by Court-order.
G 7.11 TEMPORARY SUSPENSION:
The Engineer shall have the authority to suspend the work wholly or in
part for such period or periods as he may deem necessary due to unsuitable
weather conditions as are considered unfavorable for the suitable prosecution
of the work. If it* should become necessary to stop work for an indefinite
period, the contractor shall store all materials in such manner that
they will not obstruct or impede the public unnecessarily nor become dam-
aged in any way, and he shall take every precaution to prevent damage or
deterioration of the work performed; he shall provide suitable drainage
about the work and erect temporary structure where necessary. The contract-
or shall not suspend work without written authority from the Engineer, and
shall proceed with work promptly when notified by the Engineer to resume
operations.
G 7.12 SUSPENSION OF WORK AND ANNULMENT OF CONTRACT:
The work or any portion of the work under contract shall be suspended im-
mediately on written order of the Engineer or the City Manager, a copy of
such notice to be served on the contractor's sureties, or the contract
may be annulled by the City for any good cause or causes, among others of
which special reference is made to the following:
ka) Failure of the contractor to start the work within ten days from date
of written notice by the City to begin the work.
(b) Substantial evidence that the progress of the work being made by the
contractor is insufficient to complete the work within the specified
ti time.
(c) Failute of the contractor to provide sufficient and proper equipment
for properly executing the work.
(d) Substantial evidence that the contractor has abandoned the work.
(e) Substantial evidence that the contractor has become insolvent or bank-
rupt, or otherwise financially unable to carry on the work.
(f) Deliberate failure on the part of the contractor to observe any
requirements of these specifications or to comply with any orders given
by the Engineer as provided for in these specifications.
G-20
(g) Failure of the contractor promptly to make good any'defecte in ma-
terials'or workmanship; or any defects of any nature,'the correction
of which has been directed in writing by the Engineer.
(h) Substantial evidence of collusion for the purpose of illegally pro=
curing a contract or perpetrating fraud on the City in the construe-
ion of the work under contract.
When the work is suspended for any of the-causes itemized above, or
for any other'cause or causes, the contractor shall discontinue the
work or such part thereof as the City shall designate, whereupon the
sureties may at their option assume the - contract or'that'portion,
thereof which the City has ordered the contractor to discontinue, and
may perform the same or may, with the written consent of the City sub-
let the work or that portion of the work so taken over, provided, how-
ever, that the sureties shall exercise their option, if at all within
two (2) weeks after the written notice to discontinue the work
has been served upon the contractor and upon the sureties or their
authorized agents. The sureties in such event shall assume the
contractor's place in all respects, and shall be paid by the
City for all work performed by them in accordance with the terms
of the contract. All moneys remaining due the Contractor at the
time of his default shall thereupon become due and payable to the
sureties as the work progresses, subject to all the terms of the
contract. In case the sureties do not within the hereinabove speci-
fied time, exercise their right and option to assume the contract or
that portion thereof which the City has ordered the contractor to
discontinue, then the City shall have the power to complete by
contract or otherwise, as it may deem necessary, and the contractor
hereto agrees that the City shall have'the right to take possession
of the use any of'the materials, plant, tool, equipment, supplies,
and property of every kind provided by the contractor for the pur-
pose of his work and to procure other tools, equipment and materials
for the completion of the same, and to charge to the account of the
contractor the expense of said contract or labor, materials, tools,
equipment and expenses incident thereto. The expense so charged shall
be deducted by the City out of such moneys as may be due or may at
any time thereafter become due the contractor under and by virtue
of the contractor under and by virtue of the contract or any part
thereof. The City shall not be required to obtain the lowest bid
for the work of completing the 'contract, but the expenses to be
deducted shall be the actual cost of such work. In case such ex-
pense is less than the sum which would have been payable under the
contract if the same has been completed by the contractor, then
in such case, the City may pay to the contractor the difference
in the cost, provided that the contractor shall not be entitled
to any claim for damages or for loss of anticipated profits, in
case such expense shall exceed the amount which would have been
payable under the contract if the same had been completed by the
contractor, then the contractor and his sureties shall pay the
amount of such excess to the City on notice from the City of the
excess due. When any particular part of the work is being carried
on by the Gity by contract or otherwise under the provisions of this
section, the contractor shall continue the remainder of the work in
G-21
conformity with the terms of the contract, and in such manner as
nowise to hinder or interfere with the performance of workmen
employed as above provided by the City.
G 7.13 TERMINATION OF CONTRACT:
The Contract will be considered fulfilled, save as provided in any
maintenance stipulations, bond, or by law, when all the work has been
completed, the final inspection made by the Engineer, and final acceptance
and final payment made by the City.
SECTION G 8 - MEASUREMENT AND PAYMENT:
G 8.1 MEASUREMENT OF QUANTITIES:
The determination of quantities of work acceptably completed under the
terms of the contract, or as directed by the Engineer in writing, will
be made by the Engineer, based on measurements made by the Engineer.
These measurements will be taken according to the U. S. Standard
Measurements, used in common practice, and will be the actual length,
area, solid contents, numbers and weight.
G 8.2 UNIT PRICE:
Where in the proposal form a "Unit Price" is set forth, the "Unit Price"
shall include the furnishing by the 8ontractor of all labor, tool, materi-
als, machinery, appliances, plant and equipment appurtenant to, and
necessary for the construction in every detail and the completion in a
first class, workmanlike manner of all the work to be done under these
specifications. The "Unit Price" shall also include all permanent
protection of overhead, surface and underground structures, cleaning up,
finish, overhead expense, bond, insurance, patent fees, royalties, risk
due to the elements, delay, profit, injuries, damages, claims, and all
other items not specifically mentioned that may be required to construct
fully each item of the work complete in place.
G 8.3 SCOPE OF PAYMENT:
The Contractor shall receive and accept the compensation, as herein pro-
vided, in full payment for furnishing all labor, tools, materials, equip-
ment and incidentals; for performing all work contemplated and embraced
under the contract; for all loss or damage arising out of the nature of
the work, or from the action of the elements; for any unforseen defects
or obstruction which may arise or be encountered during the prosecution
of the work and before its final acceptance by the Engineer; for all risks
or whatever description connected with the prosecution of the work; for all
expense incurred by or in consequence of suspension or discontinuance of
such prosecution of the work as herein specified; for any infringement of
patents, trademarks or copyrights, and for completing the work in an
acceptable manner according to the plans and specifications. The pay-
ment of any durrent or partial estimate prior to final acceptance of the
work by the City shall in no way constitute an-acknowledgment of the
acceptance of the work nor in any way prejudice or affect the obligation
of the Contractor to repair, correct, renew, or replace, at his expense,
any defects or imperfections in the construction or in the strength or
quality of the materials used in or about the construction of the work
under contract and its appurtenances, nor any damage due or attributed to
such defects, which defects, imperfections or damage shall have been disco
covered on or before the final inspection and acceptance of the work.
The Engineer shall be the sole judge of such defects, imperfections, or
damage, and the contractor shall be liable to the City for failure to
correct the same as provided herein.
G 8.4 PAYMENT FOR EXTRA WORYs
The extra work done by the contractor and authorized and approved by the
Engineer will be paid for in the manner hereinafter described and the
compensation thus provided shall be accepted by the contractor as payment
in full for all labor, materials, tools, equipment and incidentals, and
all superintendents and timekeepers' services, all insurance, bond and
all other overhead expense incurred in the prosecution of,the extra work.
Payment for extra work will be made by one of the following methods-
(a) Method "A" By unit prices agreed on in writing by the Engineer and
approved by the City Manager before said work is commenced, subject
to all other conditions of the contract,
(b) Method "B" - By a lump sum price agreed on in writing by the Engineer
and the contractor and approved by the City Manager before said extra
work is commenced, subject to all other donditions of the contract. _
(c) Method "C" - By actual field cost of the work plus fifteen (15 %) per
cent as described herein below, agreed on in writing by the Engineer
and the contractor, and approved by the City Manager before said
extra work is commenced, subject to all other conditions of the
contract, in the event extra work is to be performed and paid for
under Method "C" the actual field cost of the work will include
the cost of all workmen, foremen, time- keepers, mechanics, and
laborers, and materials, supplies, teams, trucks, rental on machinery
and equipment, only for the time actually employed or used on such
extra work, plus all powerp fuel, lubricants, water and similar
operating expenses, and a rateable proportion of premnims on con-
struction, and maintenance bondsp public liability and workmen's
compensation and all other insurance required by law or ordinance.
The Engineer will direct the form in which the accounts of actual
field cost will be kept and will specify in writing the method of
doing the work, and the type and kind of machinery and equipment
to be used.
The fifteen (15 %) percent of the actual field cost to be paid the
contractor shall cover and compensate him for profit, overhead,
general superintendence, and field office expense, and all other
elements of cost and expense not embfaced within the actual field
dost as herein specified. The contractor shall give the Engineer
access to all accounts, bills, invoices, and vouchers relating
thereto.
G 8.5 PARTIAL ESTIMATES-.
Between the 25th day and the last day of each month, the Engineer will
make an approximate estimate of the value of the work done during the
month under the specifications. Whenever the said estimate or estimates
of work done since the last previous estimate exceed one hundred dollars
($100.00) in amount, ninety (90 %) percent of such estimated sum will
be paid the contractor on or before the 15th day of the month next follow-
ing. The partial estimate may include acceptable non-perishable materials
G-23
delivered to the work; such payment will be allowed on a basis of ninety
(90 %) percent of net invoice value. The contractor shall furnish to the
Engineer such detailed information as he may request to aid him as a guide
in the preparation of partial estimates. It is understood that the partial
estimates from month to month will be approximate only and all partial
monthly estimates and payments will be subject to correction in the estimate
rendered following the discovery of an error in any previous estimate, and
such estimate shall not in any respect be taken as an admission of the City
of the amount of work done or of its quality or sufficiency nor as an
acceptance of the work or the release of the Contractor of any of his ref -
eponsibility under the contract, '
G 8,6 WITHHOLDING PAYMENT -
Payment of estimates may be withheld if the work is not being executed in
accordance with the specifications and contract.
G 8,7 FINAL ACCEPTANCES
Whenever the improvement provided for by the contract shall have been
completely performeion the part of the contractor, the contractor shall
notify the Engineer that the improvement is ready for final inspection,
The Engineer will then make such final inspection, and if the work is
satisfactory and in accordance with the specifications and contract, he
will give the contractor a certificate of acceptance.
G 8,8 FINAL PAYMENT-
Whenever the improvement provided for by the contract shall have been
completely performed on the part of the contractor as evidenced by the
Engineer in the Certificate of Acceptance, a final estimate showing the,
value of the work will be prepared by the Engineer as soon as the necessary
measurements and computations can be made. All prior estimates upon which
payments have been made are subject to necessary corrections or revisions
in the final payment. The amount of this final estimate, less any sums that
have been deducted or retained under the provisions of the contract will be
paid the contractor within thirty (30) days after final acceptance, provided
the contractor has furnished to the City satisfactory evidences that all sums
of money due for any labor, materials, apparatus, fixtures, or machinery
furnished for and used in the prosecution of the work have been paid; or
that the person or persons to who the sun may respectively be due have con-
sented to such final payment. Tha acceptance by the Contractor of the last
payment as aforesaid shall operate as and shall be a release to the City
from all claims or liabilities under the contract for anything done or
furnished or relating to the work under the contract or for any act or
neglect of said City relating to or connected with the contract,
G-24
S 10 STREET EXCAVATION
s JU.l DESCRIPTION
---- - -- ---
Street Axcavation will consist of required excavation within the limits all
s'll of the Street; the removal and proper utilization or and of all
excavat.:o materials; and the constricting, shaping, e
earthwork on the entire length of street in conformity with the required
lines, grades, and typical cross - sections and in accordance with specifi-
cation requirements herein outlined.
5 10.2 CLASSIFICATION
All au +horized street excavation shall be classified in the one item
"Street Excavation," and shall include all material encountered, including
gravel or similar material, roadways, streets, driveways, parking
or walks with or without asphaltic surfacing.
S 10.3 CONSTRUCTION i &THODS
All suitable excavated materials shall be utilized, insofar as practicable,
in constructing the required street sections. Unsuitable excavation,
and required excess of that
removed needed e ion be
y
known as wastetes,, "
of and be disposed of by the Contractor. It shall be the Contractor's
responsibility to dispose of the material in a satisfactory manner, and
it shall be -his further responsibility to reserve an ample quantty of
i
material to complete the contract work before disposing of sa e. vyhere
any materials are placed on public or private property, the
shall furnish written evidence to the Engineer that satisfactory arrange-
ments have been made with the owner of said property, and all such sites
shall be approved by the Engineer prior to such use.
S 10.11 blusU.REMENT
All accepted street excavation will be measured in its original position
and the volume computed in cubic yards by the method of average end areas.
S 10.5 PAYMENT
All.work performed as required herein and measured as provided above shall
be paid for at the contract unit price bid for Street Excavation, which
prices shall each be e full for ryf furnishing l labor, materials,
tools, equipment,
All work required for utilizing or disposing of waste will not be paid for
directly but , considered subsidiary pertaining to various
contract items, and suchcosts shallbecluded n the urtpricesbid.
s -10-1
S 13 EMRANIMENT
S 1361 DESCRIPTION
This item shall govern the placement and compaction of all materials ob-
tained from street, storm sewer, channel and structural excavation for
utilization in-the construction of street or roadway embankments, dykes,
backfill of structures and retaining walls.
S 13.2 CONSTRUCTION METHODS. GENERAL
(1) prior to placing any embankment, the surface of the ground, includ-
ing plowed, loosened ground, or surface roughened by small washes or
otherwise, shall,be restored to approximately its original slope by blad-
ing or other methods and where indicated on plans or rec2ired by the
Engineer the ground surface thus prepared shall be compacted by sprink-
ling and rolling.
(2) Where indicated on plans or directed by the Engineer, the surface
of hillsides to receive embankment shall be loosened, by scarifying or
plowing to a depth of not less than 4 inches, or cut into steps before
embankment materials are placed. The embankment shall then be placed
in layers, as hereinafter specified, beginning at the low side in part
width layers and increasing the widths as the embankment is raised. The
material which has been loosened shall be recompacted simultaneously with
the embankment material placed at the same elevation.
(3) hhere embankments are to be placed adjacent to or over existing
roadbeds, the roadbed slopes shall be plowed or scarified to a depth of
not less than 4 inches and the embankment built up in successive layers,
as hereinafter specified, to the level of the old roadbed before its
height is increased. Then, if directed, the top of the old roadbed shall
be scarified and recompacted with the next layer of the new embankment. `
The total depth of the scarified and added material shall not exceed the
permissible depth of layer.
(4) Wass, stumps, roots, vegetation, or other unsuitable materials
shall not be placed in embankment. '
(5) Except as otherwise required by the plans, all embankment shall be
constructed in layers approximately parallel to the finished grade of
the roadbed and unless otherwise specified each layer shall be so con-
structed as to provide a uniform slope of 1/4 inch per foot from the
centerline of the roadbed to the outside, except that on superelevated
curves each layer shall be constructed to conform to the superelevation
required by the governing standard.
(6) Embankments shall be constructed to the grade established by the
Engineer and completed embankments shall correspond to the general shape
of the typical sections shown on the plans and each section of the embank-
ment shall correspond to the detailed section or slopes established -by the
Engineer. After completion, it shall be continuously maintained to its
S 13 -1
finished section and grade until the project is accepted.
(7) Except as otherwise specified, earth embankments shall be constructed
in successive layers, for the full width of the cross section and in such
lengths as are suited to the sprinkling and compaction methods utilized.
Prior to compaction the layers shall not exceed 6 inches in depth. Layers
of embankment may be formed by utilizing equipment which will spread the
material as it is dumped, or they may be formed by being spread by blad-
ing or other acceptable methods from piles or windrows dumped from exca-
vating or hauling equipment in such amounts that material is evenly dis-
tributed.
(8) Each layer of embankment shall be uniform as to material, density
and moisture content before beginning compaction. Where non - uniform
layers abut each other, each layer shall be featheredged for at least
100 feet or the material shall be so mixed as to prevent abrupt changes
in the soil. No material placed in the embankment by dumping in a pile
or windrow shall be incorporated in a layer in that position, but all such
piles or windrows shall be broken and the embankment material mixed by
blading, harrowing or similar methods to the end that a uniform material
of uniform density is secured in each layer. Water recgdred for sprinkling
to bring the material to the moisture content necessary for maximum com-
paction shall be evenly applied and it shall be the responsibility of the
Contractor to secure a uniform moisture content throughout the layer by
such methods as may be necessary. In order to facilitate uniform wetting
of the embankment material the Contractor may apply water at the material
source. Such procedure shall be subjact to the approval of'the Engineer.
Each layer of embankment shall be compacted by approved power drawn
rollers to the density specified.
(9) All earth-cuts, full width or part width cuts in side hill, which
are not required to be excavated below subgrade elevation for base and
backfilled, shall be scarified to a uniform depth of at least 6" below
grade, and the material shall be mixed and reshaped by blading and then
sprinkled and rolled in accordance with the requirements outlined above
for earth embankments and to the same density as that required for the
adjacent embankments. .
S 13.3 CONSTRUCTION METHODS: AT RETAINING WALLS, STORM SE'NERS_& BRIDGES
(1) Embankments or backfill placed adjacent to and over pipes, culverts,
retaining walls, storm sewers and bridges shall be of suitable material
and shall be placed in successive layers approximately horizontal or
parallel to the finished grade. Special care shall be taken to prevent
aryy wedging action against the structure. For such distances along em-
bankments adjacent to structures where it is impracticable to employ the
compaction methods above specified, the embankment material shall be
placed in layers not exceeding 6" depth of loose material, thoroughly
mixed and wetted uniformly to the moisture content directed. Each em-
bankment layer shall be compacted by approved methods, maintaining the
required moisture content by additional sprinkling, if necessary, until
each layer has been uniformly compacted to the density specified.
(2) Embankments placed around spill- through type abutments shall be con-
S 13 -2
structed in 60 loose layers of uniform suitable material placed in such
manner as to maintain approximately the same elevation on each side of
the abutment, and all materials shall be mixed, wetted, and compacted as
specified above.
S 13.4 DENSITY
(1) For each layer of embankment, backfill and selected material, it is
the intent of this specification to provide an apparent dry density of
the minus 1/4 inch material of not less than 95 per cent of the maximum
dry density of the material as determined by the Proctor Compaction Test
(A.A.S.H.O. Method T- 99 -38)• It is also the intent of this specification
that the sequence of work in constructing embankments or backfill shall
be such that no compacted layer will be allowed to lose either the moist.
ture or density specified. In case work on any partially completed em-
bankment or backfill is suspended, the top 6 inches shall be brought to
the moisture and density specified below for sub - grade, before placing
the next layer of embankment or backfill. Just prior to placing sub-
base course, the moisture and density of the top 6 inches of sub -grade
shall be such that the moisture content will range from five percent
below to one per cent above the optimum moisture as determined by the
compaction test, and the density shall range from three pounds per cubic
foot below to seven pounds per cubic foot above that of the maximum
Proctor Density.
(2) After each layer of earth embankment or select material is completed,
tests as necessary will be made by the Engineer. If the material fails
to meet the density specified, it shall be reworked as necessary to
obtain that density.
S 13.5 PAYMENT
The work prescribed by this item will not be paid for directly but shall
be considered as subsidiary work pertaining to the various contract items
and the cost of this work shall be included in the unit prices bid.
8 13 -3
S 24 FLEXIBLE BASE - CALICHE
S 24.1 DESCRIPTION
This item shall consist of a foundation course for surface course or for
oth @r base courses; shall be composed of caliche and stone materials;
and shall be constructed as herein specified in one or more courses in
conformity with the typicaY sections shown on plans and to the lines and
grades as established by the Engineer.
s 2402 MATERIAL
The material shall be obtained from approved sources. It shall consist
of argillaceous limestone, calcareous or calcareous clay particles, with
or without stone, conglomerate, gravel, sand or other granular materials.
All the acceptable material shall be screened,- and the oversize shall be
crushed and returned to the screened material in such manner that a uni-
form product will be produced. The processed material, when properly
slaked and tested by standard laboratory methods, shall meet the.following
requirements:
Passing 2 inch screen . ...........................100%
Retained on 40 mesh sieve ...................50 to 85%
The material passing the 40 mesh sieve shall be known
as Soil Binder and shall meet the following re-
quirements:
The liquid limit shall not exceed .................40%
The plasticity index shall not exceed .............13%
The linear shrinkage shall not exceed ............ 8.5%
(Note: The linear shrinkage shall be calculated from
the volumetric shrinkage at the liquid limit.)
S 24.3 CONSTRUCTION METHODS
The street shall be excavated and shaped in conformity with the typical
sections shown on plans and to the lines and grades as established by the
Engineer. The surface of the sub -grade shall be finished to line and
grade as established and in conformity with the typical section shown on
plans, and any deviation in excess of one -half (z) inch as shown by
straightedge or template when placed as directed shall be corrected by
loosening, adding, or removing material, reshaping and compacting by
sprinkling and rolling. Sufficient subgrade shall be prepared in advance
to insure satisfactory prosecution of the work.
Where shown on plans, side forms of steel or wood of sufficient depth to
retain the loose material shall be provided and placed as directed and
shall be set accurately to line and grade according to Engineer's stakes
and firmly fastened to prevent displacement. Side forms if of wood shall
be not less than the thickness of 2 -inch commercial lumber.
S 24 -1
The material shall be delivered in approved vehicles of a uniform capacity,
and it shall be the charge of the Contractor that the required amount of
specified material shall be delivered in each 100 -foot station. Material
deposited upon the subgrade shall be spread and shaped the same day. The
material shall be bladed, dragged, and shaped to conform to typical sec-
tions as shown on plans. All areas and "nests" of segregated coarse or
fine material shall be corrected or removed and replaced with well graded
material, as directed by the Engineer. If additional binder is considered
desirable or necessary after the material is spread and shaped, it shall
be furnished and applied in the amount directed by the Engineer. Such
binder material shall be carefully and evenly incorporated with the
material in place by scarifying, harrowing, broomi.ng, or by other approved
methods.
Each layer shall be uniform as to material, density and moisture content
before beginning compaction. Material placed on the subgrade by dumping
in a pile or windrow shall not be incorporated in a layer in that posi-
tion, but all such piles or windrows shall be broken and the material
mixed by blading, harrowing or similar methods to the end that a uniform
material of uniform density is secured in each layer. Water required
for sprinkling to bring the material to the moisture content necessary
for maximum compaction shall be evenly applied and it shall be the re-
sponsibility of the Contractc1%to secure a uniform moisture content through-
out the layer by such methods as may be necessary. Each layer shall be
compacted by approved power drawn rollers to the density specified.
For each layer it is the intent of this specification to provide an
apparent dry density of the minus n inch material of not less than 95 per
cent of the maximum dry density of the material as determined by the
Proctor Compaction Test (A.A.S.H.O. Method T- 99-38)•
The surface upon completion shall be smooth and in conformity with the
typical sections shown on plans and to the established lines and grades.
Any deviation in excess of one - fourth (4) inch as shown by straightedge
or template shall be corrected by loosening, adding, or removing material,
reshaping and recompacting by sprinkling and rolling. All irregularities,
depressions, or weak spots which develop shall be corrected immediately
by scarifying the areas affected, adding suitable material as required,
reshaping and recompacting by sprinkling and rolling.
Side forms when used shall be removed prior to final shaping and compaction
of each course, and the trench shall be immediately backfilled and'com-
pacted by rolling.
Succeeding Courses: Construction methods shall be the same as prescribed
for the first course.
S 24.4 MEASUREMENT
Work and accepted material as prescribed for this item shall be measured
by the cubic yard of material in vehicles as delivered on the road.
S 24.5 PAYMENT
The work performed and material furnished (including additional binder U
S 24 -2
required) as prescribed by this item and measured as provided under
"Measurement" shall be paid for at the unit price bid for "Flexible Base,"
which price shall be full compensation for shaping and fine grading the
roadbed; for furnishing all materials; for royalty and freight involved;
for loosening or blasting, excavating, screening and crushing; for loading
all materials; for hauling and delivering on the road; for spreading,
blading, dragging, shaping, sprinkling, rolling and finishing; and for
all manipulation, labor, tools, and incidentals necessary to complete the
work.
5 24 -3
FFp,�N,
r O
s -34 HOT 111X ::SPH.1.LTIC C "iTOXNE PODAYiQT
8-34.1 DESCRIPTION:
This iteu shall consist of base course, a leveling -up course,
a surface course or any combination of these rouses as sho,m
on the plans, each to be conpooed of a compacted mixture of
mineral aggregate ajd asphaltic wtori:l. It is the intent of
this specification to aroeuce g mixture -hich, when designed
and tested Jr. accordznce with those specifications and methods
outlined in T.H.D. Bulletin 0-14, shall have the f ollori::g
labor: -tory r1onsity and stability.
Denoity "'-' Stability (%) (Hveom Stabilometer)
Kin. iia:c. Optimum
94 98 96 Not leas than 45
If tho mi.::turs produced door not have the specified qu.:litics
it will be ch,ngoA until it doer. The pavement shall be
constructo,. on the previously conploted and approved sub -
gr. -,do, base or is the caoo of a bridge, on the pre,),-xcd floor
slab, as L•orein snocified and in accordance -ith the details
shorn on the plaits.
S 34.2 25`.T tl. L •:
(1) i1ineral :iggrogato:
The uincral c.ggregato shall bo composed of ... coarse ^g,tregate
and fine . 1
.ggrogato, Sample of coarae aggro, ate and fine -
aggrog.;te shall bo subrai.ttec'. and ap roval of both mater---al and
of the source of supply :asst bo obtai nerl from the Engineer
prior to dclivnry.
(a) Coarse agg'rogc:to:
The coarse aggrog...tc shall bo that part of the aggrog=.te
i ^tai - -ed on i ?o. 10 mesh Aevo; shall consist of clean, tough,
durcblo fragmer_ts of stone, or gravel, as hereafter spocifiod,
of uniform quality th%oughout, it shall be practically froe
from cl: y, org: :Ac or other injurious rw.tter occurring either
free or as coating on the ags'=eg.-.to. haterial removed by
deccut:.�i.on shcl'. not bd more thin 25 except -bon tho plas-
ticity index of the removed matori l is lees than 6, the
amount may be as much ar 4 %. The coarse iggrogato shr-U. have
can abrasion of n,t more than forty (40) ;rho_i subject d to
the Los Ankles ibrasion TCSt,(j,_1.,S,H.O.T-,96) for :.11 typoo
except Typo "F ", (Non-skid Surf ::Qe Course), which sh:.11 have
an abrasion of not more thall. thirtyrfivo (35) ^hen subjected
to tjo sumo toot. If Zravol is u.od for Type 'IF ", is shall be
so crusho-1 th..t one hundrod (100) per curt of the )artielos
shall have more than one crus;acd face.
S -34 -1
(b) Fine Ag�rogate:
The Pine agr.;reg,-.to shall be that pert of the aggregate passing
the ',?o. 10 mesh sievo any.. shal'- consist of sand or stone screen-
ings or corsbin: _tion of o=d :nd stone scroen ngs. Said shall
be conposod of sou;:d, durable stono particles free from injur-
ious foreign matter. Screenings 'shall be of the same or similar
material as specified for soar e aggregate. The plasticity
index of that pert of the fino a, -reg,.te gassing the No. 40
sieve shall be not more than 6.
(2) Asphaltic rhterial!
(a) Paving Mixtu:c
Asphalt for the paving mixture shell be of the types s'.ocn;
uuler the bradir_g "(lf Oil Lsphalt" of the Special Provision
"General" to the Standard Spocific :_Lions included in t'_:eso
specific.Ltions aid shall L +.cot the .equiremonts specified
therein. The gr:.de of asphalt used shall be as dovignated by
the Engineer after design tests have been made using the mineral
aggrogatcs that aro to be used in the project, and the Various
grades of asphalt. If more tY.L:i one type of asphaltic concrete
mixturo is specified for the project, only ono grado of ashphalt
will be required for :11 types of mi:,`xres, w.-loss otherwise
shows: on plans.
(b) Tack Coat:
the asphalt material for Tack Coat shall meet the requirements
specified in Speci..l Provisions "Gonorc.1" to the Standard Spec -
ifications included in these specifications for RC -2 Cut Back
Asphalt or shall be a cut -b--.ck asphalt ma.do by combining fifty
to seventy (50 -70) per coat of the asphaltic materiel as
specified for the type of paving m- Lrture with thirty to fifty
(30 -50) per cent gasoline.
S 34.3 PAVING M URES:
ta) TYPES: `
The pavi- g mixture: shall consist of a uniform mixtu:e :f
coarse aggrcg_.te, fine aggregate . nd asphaltic. m,,torial.
The grading of each constituent of the mine:.-.-1 aggregate 6h,.11
be such as to produce, when properly proportioned, a mixture,
w ich, who- tested 211 conform to the limitations for mastor
grading t;ivon below for the typo specified:
Type "A"; (Coarse Grading Binder Course )
Passing 2 1/4" scroen ............ 100;
Passing 2" scr ^on .. .. ...............97 to 100%
Passing 2" screen, retcinod on 1" scroen ........15 to 40%
Passing 1" screen, rotc.i :.od on 1/2" screen ......15 to .40%
Passing 1/2" screen, ret.Ancd on 1/4" screen ....10 to 25%
Passing 1/4" screen, retainod on 10 mesh sieve;;. 5 to 20%
Total ret.:inod on 10 mesh sieve .......... ...65 to 80%
Passing 10 nosh siovo, rot..ined on 40 mesh sievo. 0 to 15%
S -34 -2
Passing 40 -mosh sieve, retained on 80 mesh sieve 3 to 15%
Passing 80 -mesh sieve, retai_ +iol. on 201 nesh sieve 3 to 15%
Passing 200 mo -h sieve 1 to .10%
The asphaltic material shall form from 3 to 6% of the nixture
by weight.
Typo "B ": (Fine Gradod Binder or Lovoling -up Course)
Passing 1 1/4 "" ecroen '.... ...... .. I ....... . 1. 100153
Passing 1" screen, retained o_! 1/211 scr,:on ... ..20 -be =•50%
Passing 1/2" scree,: seta nod on 1/4" scre..il ..... 15 to 40%
Passing 1/411 screen, retained o:i 10 mesh sieve... 5 to 25%
Totc1 retained on 10 mesh sieve .................55 to 701%
Passing 10 mesh sieve, rot_.inod on 40 riosh sieve. 5 to 20%
Passing 40 mesh sieve, retained o:_ 80 mesh sieve. 5 to 20%
Pas =ing 80 mesh sieve, retained on 200 mesh sieve. 5 to 20 "'
Passing 200 mesh sieva 1 to SO�s
The asphaltic matcr�.a1 shall form f,om 4 to 7% of the mixture
by woi.g t.
Typo "CI': (Coarse Surface Course)
Passing 1f1 scroon ............................ 100%
Passing 3/4" screen ......... • .. ...........i7 to-100%
Passing 3/4" scroon, rot.:inedon 1/211 screen ....15 to 40
Passing 1/211 screen, retai=ned on 1/4" scroen ....15 to 40%
Passing 1/4" screen, retain on 10 mesh sieve ....10 to 30%
Total retained on 10 mesh sieve... .. ...50 to .65s
Pessir_g 10 mesh sieve, retained on 40 mesh sieve. 0 to 25% .
Passing 40 mesh sieve, retAned on 80 mesh sieve 5 to 25%
Passing 80 mesh sieve, retained on 200 meF.h sieve 5 to 25%
Passing 200 mesh sieve .. .. .. .. 1 to 10% The asphaltic material -hall form from 4 to 7S= of the mixture
by weight.
Type "D ": ( Fine Graded Surface Course )
Passing 5/8:11 scroon ................. 100%
Passing 1/2" screen ...97 to.1001 ,
Passing 1/211 screen, -retained on 1/4" soroen ..... 25 to 50,%
Passing 1/4" screen, retained on 10 mesh sieve ..15 to 35%
Total retained on 10 mesh sieve .................50 to 60%
Passing 10 ,aesh sieve, rotai :,ed on 40 mesh sieve 0 to 255;
Passing 40 mesh sieve, r•:; tined. on 80 tiesh sieve 5 to 25%
Passing 80 mesh siovo, retained on 200 mesh sieve 5 to 25
Passing 200 mesh sieve 2 to 10%
The asphaltic material shall form from 4 1/2 to�7 112 per cent
of the mixture by w®i.ght.
S -34 -3
Typo "E": ( Sheet Asphalt Surface Course )
Passing 1/4" sereon ......... .. 100%
Passing 1/4" screen, retai ed on 10 mesh sieve... 0 to _ 5%
Passing 10 mesh sieve, retainuC on 40 mesh sieve 15 to 405
Passing 40 mesh sieve, rot-fined on 80 mesh sieve 20 to 45%
Passing 80 me -h sieve, retained on 200 mesh siovel2 to 32%
Passing 200 mesh sieve 10 to 20'0
"he asphaltic material shall form from 8 to 12% of the mixture
by veight.
Typo "F ": ( Uon -skid Surface Courr�e )
Passing 1/2" screen .. ... 100%
Passing 3/8" screen.. .. .. . 97 to 100%
Passing 3/8 "screen, retain(,". on 10 Mesh sieve ...60 to 75%
Passing 10 mesh sieve, retaired on 40'mesh bicvo ;:3 to 101
Passing 40 mesh sieve, rotained on 80 mesh sieve 6 to 12%
Passing 80 mesh sieve, retained on 200 mesh sieve 4 to 105
Passing 200 mo ^h sieve .. ... .... .. 4 to 8%
The asphaltic material shall form from 3 1/2 to 5 1 /2per cent
of the mixture by voight.
(b) Tolerances:
The exact grading of the aggregate and the asphalt content
to be used in the above mi;, tunes, within the limits specified,
will be designated by the Migincer and the mixture produced
shc.11 co,�form to this '.esigncd grading and asphalt content with-
in the follo�,i:g respective tolerances;
Passing 2" screen, rot, on 1" screen ....... plus or- minus 5%
Pas ^ir_g 1" screen, rot, on 1/2" screen ....plus or minus 5%
Passing 3/4" screen, rot, on 1/2" _crccn. ..plus. or minus 5%w
Passing 1/2" screen, rot. on 1/4'r screen... plus or minus 5%
Passing 3/8" screen, rot:-oil 1/4" screeh ... plus or minus 5�
Passing 1/4" scr.:en, rot. on 10 mesh s4am— plus or minus 5
Total rot:.incd on 10 nosh sieve ........... plus or minus 5%
Passing 10 mesh sieve, rot. on 40 mesh ....plus or minus 3%
Passing 40 mash sieve, r,:t. on 80 nosh , , . , plus or rai_:us 3S�
Passing 80 mesh sieve, rot, on 200 mosh....pl.ue or minus 3i�
Passing 200 mesh sieve, plus or minus 2%
Asphalt material ..........................plus of minus 0.4`;
The type and :mount of tho mixture shall be as specified on the
plans.
(c) Extraction Test:
']hon required by the Engineer, samples of the mixture nay be
taken from trucks,' and vhoii tested by the Extraction Tost, it
shall aot vary from the grading proportions of the aggregato
and the asphalt content desie;nAod, by the Engiucer by more than
the roanective tolerances specified above.
5 -34 -4
(d) Mixing Plants th.-t •gill not continously produce a
a mixture meeting all of tho above requirements will be con-
demned c.nd romovccl from the job.
S 34.4 EQUIPIL3PIT:
(1) biia:ing Plants:
i4ing Plants ray be either the Ucight- batching Type or the
Continuous Nixing Type. ( Ace Article 5 also.) Both ty-3e of
plants 'shall be equipped vith satisfactory co•:royors, power
ur?it-, aggrog :te handling equip,me• t , hot aggrog,to screens
and bins, dust collectors; d chalZ consist of the 'o1Zo it ?g
essential pieces of oquiprro__t:
(a) '.toight- b_.tchi.ng Typo:
Cold Aet?reaate Bin and ProQortaonir:e Devise:
The cold aggregate bin shill have at least three comrrtr_eats
and shall be of sufficient size to store the amount of aggregate
required to keep the plant in continuous operation. The pro -
Dortioning device shall be such as -ill provide uniform and
continuous floes of aggregate in the desired proportion to the
dryer.
Dryer: Thor dryer sh:.11 be of the type that continually agitates
the cggTegate during heatinC sd in which the temperature can
be so control'.ed t':at the aggro,,:to will not be injured in
drying and he:,ting it to the temnorc.turo necessary to secure
a mixture of th•. specified temperature. .1 recording thor-
momet r shall be provided which will record the t=peraturo of
the aggregate •!hen it -lezvo., the dryer. The dryer shall_ be of
sufficient size to keen the plant in continuous operation.
Scroenine d Pronortiari g:
The sevoening capacity =,d size of the bins shall be sufficient
to screen a• d -,tore th . anoukt of aggregate roquir••d to properly
operate tho plant and keep the pla-A in cor:ti uous operation
at fall capacity. The bin shall be divided into ct 13 as't five
con-jartnonts when producing Type ":_°, Type 11D ", and Typo "C',
mixtures and at last four compartne•:.ts when producing the
other typos of mixtures. Those bins shall eor.tain t. ?e following
size of a,.,grega tea :
Bin He. 1 - will contain tine minoral filler.
Bin i'e. 2 - will cortain� ag;;_cgc.tes 90 to 100% of ihioh
will pass a 10 mesh sieve.
Bin Uo. 3 - will contai_? aggregates 95 to 100% of ;,hich
will pass z 3,18" screen and 85 to 100;1 of which still be
retained on a 10 vo, h sieve.
Bin No. 4 - will contain a3,megste 95 to 100;a of which
will pass a 1/2" screen whoa producing Tyne "Y mixture
and 85 to 1.00% of which -:i11 pass an 3A"' sateen whop
S -34 -5 -
producing Types "All, °B'r' or 110" mixtures d 35 to 100% of
,rhich will be retained on a 1AP screcu.
Bin Re. 5 - will contain aggreg.,.to all of "hick will pass
the largest s recn e.izo por;itted for the typo of mixture
being produced and 85 to 100;. of which will be retained on
a 112" scroon.
Ag•rp canto Weigh Box:
The aggregate weigh box shall be of sufficient capacity to hold
a counlete batch of aggregate without wasting of leveling by
hand and shell be so dosignod that the onti:e ')itch gill dis-
charge quickly i:_to the m:L:or. The uolgh box shc.11 be ono : at
the top so that if, in charging, an excess of aggrog -to is
intoduced into the ,,oigh bo ::, i.t ray be rcmovcd by the operator,
The weigh box sh4ll be provided with a close fitti:g :.nd quick
opera :ti_ig cut -off gate, -,o that there will be no leakage of the
agg'rogzte into the nixer, and shall be satiefactorj1y attached
to the bitching scales,
Aggrognto Hatching Scales:
The scales used for ••oighing t.r„ a,rgrogato may be oi.ther of the
springla --- dial typo or the ruul.ti =beam t;T,e. All scales shall
have a t,ro bean for bcla:.cir_g -.rd the beam scale- nest also be
equip-,od - ith a tell -tale indicator of tho springless d- c1 type,
indic:.ting over and under weight of at least -fifty '(50) pounds.
Scales that are not accurate to within four (4) pounds per
one thousane.. (1000) pounds net lead will not bo considored.
satisfactory. Scales shall be satisfzcto-.ily insulated against
vibration.
Asphaltic li.teri.al Bucket:
The asphaltic material bucket shall be of cuffiei^nt size -�o
hold tho necessary asphol.tic T=terial for o: -io batch. If the
na:t rial is moasurod by weight, the bucket shall be properly
attached to tho asphaltic rk :terial scales hereinafter spoc-
ified. If the proportioning is by volume based upon •ci;ht,
the measuring bucket used shell be of t_zo evar -flo-• type and
shall meet the recuireno_its of the i.ngincer. Tare valv::s at the
ashpaltic ptorial bucket shall be of i click cut -off type
that does :ot 1e,1:.
Asphaltic K torial Scales:
If tho Contractor elects to voigh the rsph ltic =..terial instc ::d
of proportioning by volume b_:sed on weight, the soalcs for
weighing the material shall be of the opringless dial type or
multi bean typo. If of the springless type, they shall be
nrr =.aged for quick adjustrront at zero to provide for ary change
in t,4.. A pointer shall be -1rovidod to ir-dicate tho weight of
the asphaltic material required for one batch. If of the multi"
beam tyre, they shell be equipped rith a tell tale indicator
of the springless dial typo. Sales that are not accurate to
within four (4) pounds per one thousand (1000) pounds net load
will not be considered satisfactory. Scales shall be satisfac-
torily insulated agaihst vibration.
S -34 -6
Ri or :
The mixer shall be of Vie Pug Pdill typo and shall have b'
capacity of not loss than fi£ten hundred (1500) pounds in a
single batch. The number of blades and the position - of same
shall be such as to give a �;,�i.form and cbmploto circulation
of the batch in t'^o.mixer. he mixer shall be equipped with
an approved spray bar or other device that will distribute
the asphaltic material quic'_1y and uniformly throughout the ..
mixer. Any mixer that has a tendency to segregate the mineral
aggreg -t: or fa'. -.ls to secure a. thorough and uniform aAxing
with the asphaltic material shall not be used. This sh.:ll be
dotornir_od by mixing the standard batch for tho required time
then dumping the mi.°ture and taki:_g sanplos from different
parts of it. This will be tosted by the extraction test and
must show that the batch is uniform through. 1111 mi : :ers shall
be provided with an automatic time lock that will 'lock the
discharge doors of the mixer for rho required mi::ing period.
The dump door or doors of the rdy.or shz.11 be tight enough to
prevent the spillLng of aggregate or mixture fx'om the pug mill.
(b) Continuous Mixing Tyyio:
Cold Aesresatc Bin and Pronortiorin[ Device: Same as for weight
hatching type of pla:_t.
Dryer, S:= as for weight - bitching type of plant.
Screening and Proportion9_g: Same as for •;eight- batching
typo of plant.
Hot Avgren _to ironortior_ir_g Device: The hot a, ;gregato rro-
portioning dovico shall be so designated that -hon properly
operate.; a uniform and continuous flow bf agdrogcto into the
mixer will be maint,ined.
.Asphaltic H ttrial Spray Bar: The asphaltic material spray
bar shall be so dc�ig_acd that the asphalt will spray uniformly
and continuously i:.to the mixer.
Asphaltic Material Hater: Ii accurate asphaltic natorial meter
sh .11 be pl. c= d int the asphalt fine loading to the spray bar
so that the asio nt of asphalt being used can be accurately
determined.
Minor: The mixer shall be of the pug mill continuous typo
and shall have a capacity of not less t ;an forty Q40) tons
of izi.::turc per hour. any miser that has a tendency to segro-
gate the aggregate or fails to secure a through and uniform
nixing of the aggregate with the asphaltic material shall not
be used. This shall be determined by taking samples from dif-
forent pasts of a truck load and testing by the extraction test
Thesotests must shoe that the load is uniform throw gout.
S -34 -7
Truck Scales: A set of standcxd platform true', scales shall
be placed at a location ap• roved by the Engineer. Scales
Shall be accur ^to to '+ithin four W pounds per one thousand
(1000) pounds total load. The true': scales shall hava a
rated capaci' :y of not loss ''lhc.n five trousund (5000) po:i_d.::
more than the total load to be weighed. A weather -tight
building of sufficient size to house the checker while
operating the scales shell be provided.
(2) Asphaltic Hcatirg Equipment:
Asphaltic heating equipment shall be adequate to heat th-
amount of asphaltic material required to tbo desired temp-
erature. Asphaltic material may be heated by steam coils which
shall be absolutely tight. Mroot fire boating of asph.:ltic
materials will be por;:utted, prov!.d.cd tl,e heater used is
manufactured by a reputable concern and there is postive
circrilation of ',he asphzlt throu6hcut the hoator. ..gitation
--rith steam or air will --not be per;- aittod. The heating apparatus
shall be equip ?ed with a recording thermometer =•ith a 24-hour
chart that +,ill r,=rr' the temperature of •t'ac c :aphalVlc
material where it is at the highest temperature.
(3) Spreading and Firishing iachinc:
The spreading and finishing sachin_e shall be of -the screading
and trrvoli.ng type, or of a type apprcv,d b-y the Engineer and
shall be capable of producing a surface that will meet the
requirement of the typical cross section and the surface
test.
(L,.) Forms:
The use of forias ;nil'_ not be required except • h ro necQs:csy
to support the edges of the ,)avement during rolling. If the
pavement will stand rolling without und;.•io movement, binder
twine or shall rope may be used to align the edges.
(5) Maintainer:
The IL^intaincr, if used, shall be self'= propolled power
maintainer; it shall be equipped with pneumatic tired wheels;
shall have a blade length of not less than twelve (12) foot;
shall have a wheel baso of not less than sixteen (16) feat;
and shall be tight and in good operc.ting condition and
approved by the Engineer.
(6) Pneuriitio Tire Roller:
The pneumatic tire roller s__all consist of not _mss than nine
prouin#1 c tired rhools, running on axles in such manner that the pear group of tiros will rot follow in th:, tracks of the
fo,ward group, and mounted in a rigid fra•.o m d provided with
a loading platform or body suitable f.,r ballast loading, The
wheel base of the roller ( the di::tance betwccr t'-2a front and
rear axles) shall not be lees th.a five feet nor more than ten
fo,t. The Front axle shah_ be attzchcd to the frame in such
nanror that the roller *_'y be tur:.cd within a minitium circle.
5 -34 -8
The pnou ratic tiro roller u_7dor working conditions shall have
au effective rolling ridth of appro: it at :1y si,% (60) inches
and shall bo 3o- dcsign6d that by ballast �lo din g, too load ch may
be varied ur:ifor. .y from 100 pounces to 325 P
:idth o£ tire tread. Trc pressuro i_. the tires and the corn res•-
si.on to be provided ^t 112y tiro s:mll be as dircatcd by 'he
Engineer. Th, roller under or':iilg conditio.s shall rovide a.
uniform corpressicn under .11 !rhools. The total combi:ncd:
width of 6ffoctivo tire treed shall be not loss •:h ==
eighty -five (85) per cent of the effective rolling *,idth. The
pneumatic tine roller shall be dr :r either by a suitable pnoo-
matic tired tractor,' or a -truck of adoquato tra.ctivc effort.
(7) Tandcr. Roller:
phis roller shall be an acco_?tablo power driven tandem roller
weighing not loss t' -an night (�) tens.
(8) Three T•Ilrecl Rcllcr:
This roller s::.:L?. be an acct, •tablo po- or drive.., three whobl
roller 110ighing not less t;?a.? ten (10) tone:. .
(9) Straight Ed es and Tomplates:
The Contractor ;,hall ;movid.: • :ccoPtabl�: s'-tc0n (.l6) foot
strcig:at ed a:s for surface tasting . Satisfactory templates
shall bo provicicd as required by the Engineer.
(10) L:.bor -,.toy :
The Contractor shall provide, at his ert_re expense, a voathor-
ti[;ht field laboratory building in rhich to house cad use tho
t- sting c q u i p n : t; said building being for t. e sole use of the
ngine,cr and inspecting force. it shr-.11 be not less than eight
(E) foot by t•:'gty (20) foci and eight (8) foot high, flo-rod
and roofed =rcathor- tight, contai::i_ig not less than two uindo:rs,
two doors a:.d a work bench three (3) fo:t Ado and si.:: (6) fo,t
long. The bud1ding shall be so locc.tod t_-rt the details of -the
plant _.ro in full viow and plai,ly visiblo from at least 0.20
window of tho s, re.
(11) All cqui_onent shay. be saint: i:.od in good ropair` and
operating condition .nd shall be approved by tho Eng._nocr.
S 34.5 SUPPIMM1,T FOR Sii.L`, P..LCJLCTS: ,
ihen the total amount of "'.sph: laic Concrete Pavement" as sho-.rn
in preposalie less than five thousend (5000) tons, thi§ spec -
ifi6ation is hereby modified as foilo1 =s:
(1) Bin Storage:
M-ant and storage bins vill not be required, but the different
size of materiels shall '-)e sopercaed into the three sizes
specified.
(2) Heigh Box:
Other adequate equipment may b: used to accurately batch and
neigh the material. S -34• -9
(3) Mixing:
A Pug Millmixer of a minimum 750 pounds capacity or a Pug
Mill continuous type of mixer of a minimum capacity of 20
tons per hour may be used. PIo automatic timing lock will
br required but a satisfactory timing device shall be used.
S 34.6 STORAGE, pROPOnTIOITS ID 1ffXI,-,G:
(1) Aggregate Storage:
If the mineral aggregates are stored or stock - piled, they shall
be handled in such a manner az to prevent segre;;ation, the
mixing of the Various materials or siz ^s, and the contamination
with foreign materials.
(2) Storage and Heati-:g of Asphaltic Material:
The asphaltic material storage shall be ample to meet the
requirements of the plant. Asphalt shall not be he ated to a
temperatu =e in excess of 3500 F. All equipment used in the.
storage and handling of asphaltic material shall be kept in
a clean condition at all tines and shall be operated in such
manner that there vill be no contamination with foreigh matter.
(3) Feeding and Drying of Aggregate:
The feeding of various sizes of aggregate to the dryer shall
be done through the cold aggregate bin and proportioning device
in such a manner that a uniform and constant floe of materials
in the required. proportions will be maintained. The aggregate
shall be dried and heated to the temperature necessary to
produce a mixture having the specified temperature.
(4) Proportioning:
The proportioning of the variouo material entering into the
asphaltic mixture shall be as directed by the Engineer and in
accordance with these specifications. Aggregate shall be
proportioned by weight using the weigh box and hatching scales
herein specified when the weigh -batch type of plant is used and
by volume using the hot aggregate proportioning device when the
continuous Auer type of plant is used. The asphaltic material
shall be proportioned by weight or by Volume based on weight
u -ing the specified equipment,
(5) Mixing:
(a) Batch Type Mixer: In the charging of the w6igh'box and
in the charging of the mixer from the neigh box, such methods
or devices shall be used as are necessary to secure a uniform
asphaltic mixture. In introducing the batch into the mixer, all
mineral aggregare shall be introduces, first; shall be mixed
thoroughly for a period of five (5) to twenty (20) seconds, as
directed, to uniformly distrubute the various sizes throughout
the batch before the asphaltic material is adder ?.; the asphaltic
material shall the be added and the mixing continue= for a total
mixing period of not less than thirty (30) seconds. This mixing
period may be increased, if, in the opinion of the Engineer, the
5 -34 -10
mi:mtuka -is.not uniform
(b) Continuous Type Mixer: The amount of aggregate and
asphaltic material entering the mixer and t:ic rate of travel
through the mixer shall be so coordinated that a uniform
mixture of the specified grading and asuhclt content -ill be
produced,
(c) The mixture produced irun oath type of mixer shall
not vary from the'specifie' mixture by more than the tole- =�
antes herein specified.
(d) The asphaltic mixture shrll be at a temperature
between 2010 F. and 3500 F.whon clumped from the mixer, The
Engineer will 1eterrine the lowest temperature, within
the above lindtations, at which the mctcrial can be satis-
factorily dried, mixed,.transported, spread, and compacted
and the mixture furnished by the Contractor shall be between
t'-.is temperature and one 300 F. above.
S 34.7 CONSTRUCTION METHODS;
The asphaltic mixture or tack coat shall be placed oily when
the weather conditions, in the opinion of the Engineer, are
saitable.
(1) Prime Coat:
If a prime coat i^ required, it *,ill be applied and paid for
as a separate item. The tack coat or asphaltic concreteshall
not be applied on a previously primed fle=_ible base until the
primed base has com_plet-ly cured to the satisfaction of the
Engineer.
(2) Tack Coat:
Before the asphaltic mixture is.laid, the surface upon.hich
it is to bo placed shall be cleaned throughly to the satis-
luction of the Tngineev, and shall be given a uiilform tacit
coat application of RC -2 Cut -Back asph..lt, or a cut -back
asphalt made by mixing fifty to seventy (50 -70) per cent of
the asphaltic material used in the mixture with approximately
thirty to fifty (30 -50) por cent by volume of •:hite gasoline
or kerosene. This tack coat nh;•ll be applied, as dirocted by
the Engineer, � pith an approved opr, ^.yer at a rate of not to
excood 0.10 gallon per square yard_ of surface. If RC -2 Cut -back
asphalt is used for the tack coats it,.iay , upon in•tructions
from the Engineer, be diluted by the additon of not to exceed
fifteen (15) per cent of a:i approved grade of kerosene or
gasoline, by Volume. Where the mixture will adhere be the
surface on which it is to be placed without the use of a tack
coat, the tack coat may be elimi.n.te? by the Engineer. All
contact surfaces of curbs and structures and all joints shall
be painted with a thin uniform coat of the asphaltic material
used for the tack coat,
S-34-11
(3) Trznsporting hsphaltic Concrete:
The aephzl t5 c rti ..u; e, pr ep:xed as specified above, Mall be
haule,4 to tl;e - or2: in t,-'-,,,ht voldcl.os -previously cleaned of
all foroi f n material. The di,;patchi ng of the "vehicles shall
be arranged so that all rate-rial d:•livcd raay be placed , and
shell have received its initial rolling in daylight. In cool
o thar canvas covers and insulating of the truck bodies may
b.: required. The inside of the truck body may be gi-en a light
coating of oil, if necessary, to prevont mixture fro.a adhering
to the body.
(4) ?lacing:
(a) Gener -Ily the asphaltic mixture shall be dumped and
spread an the approved ?repared surface with the specified
s;rree "din;• and finishin iracire in ucN manner that when
properly comnactod the finished nwoment will be. smooth, of
uniform den -it- and will root the recuiroments of the t-•picul
cro.s sections and the -urf:ce tests.
`(b) In placing a level -up eoniso -*ith the sxeadi.rg and
finishing rachino the forms, binder t-,ine or cord; shall be
sot to line nd grado establis'ied by the Engineer. ahon
directed by the EnLincer, levol-up courses -hall. be spread
with the specified maintainer.
'(c) :`hen the esph,.ltic iiiaturo is placid in c nr _ °ov
strip along the edge of an o. ; sting pavement, or -_o,' to
level up small areas of a:i e.:ist ng pavc+,cnt or placed in
mall irregular .rcas iencro ':ho use of a finishing mac"'Ine
is not practical, the fi usUng :.r;chine nay be - liminatecl,
when authorized by '.;`_e En [fine=r, )ro,rid d a eatisfectory
surface ccra be obtained by ot'eor apnrovar ; othods.
(d) Flush Structures: adjacent to flush cubs, gutters
liners; aad structures, the :•txfaco s_ c1'- be finished uniformly
high so t' at -hen cor:p-cted it --ill be slightly above the edge
of "Ghe curb �.nd flush structure.
(5) Co_:pacting.
(a) As directed by the iIljneor, the pavement shall. be
conrorc,�•ed thoroughly and uniformly with the snoci"fiod rolle-.s.
(b) Rolling -"ith the thr-e vheoel a:id tandem rc1 "..rs shoal.
start longitudinally et the sides and proceed toward the c,ntor
of the pcvanent, overlapping on ;uccossivo trips by .t least
h,af the -•idt': of the roar -heels. Altorn.te trips of the roller
sik.11 be slightly different in Length. in super- elovabc? crz ves,
rolling shell begin at the loci side and prr-gess tovard the high
,dde. Rolling ith t10 pnourmtic roller shall be do-e as
dir cte' b, t•:e Engineer. Rolling shall bo continw'd until no
furtbor co:.ipr.; sio_i can be obto.ined aaid all rollor marks are
eltmi.ncted. ih,e tnndom roller and t least o-.---o threw whoel
roller as above specified, shall be rnovided for each job. ^»
s -34 -12