HomeMy WebLinkAboutC2005-066 - 2/22/2005 - Approved CITY OF CORPUS CHRISTI
AMENDMENT NO. 8
CONTRACT FOR PROFESSIONAL SERVICES
This City of Corpus Christi, Texas hereinafter called "CITY", and HDR En~lneerln¢l Inc., hereina[ter
catted "CONSULTANT", agree to the following amendments to the Contract for Professional
Services for Sanitary Sewer Trunk Main Rehabilitation, as authorized and administratively amended
by:
Original Contract
Amendment No. 1
Amendment No. 2
Amendment No. 3
Amendment No. 4
Amendment No. 5
Amendment No. 6
Amendment No. 7
Mamh 28, 2000
May 16, 2000
August 7, 2001
February 26, 2002
March 6, 2002
April 10, 2003
September 5, 2003
March 29, 2004
Motion No. M2000-096 $396,574
Administrative Approval $14,412
Administrative Approval $7,110
Administrative Approval $10,500
Administrative Approval $3,250
Administrative Approval $6,500
Administrative Approval $24,906
Administrative Approval $24,954
1. DECLARATIONS. "CITY" desires to engage "CONSULTANT" to provide services in
connection with City's project, described as follows ("PROJECT"):
· West Point/Greenwood Trunk Main Rehabilitation
· Staples Street Trunk Main Rehabilitation
· Omaha Street Trunk Line Rehabilitation
· Antelope 24-inch Trunk Main Rehabilitation
· Infiltration/Inflow Related Collection System Enhancement Program at South Staples,
Timbergate, Cimmaron, Sycamore
· Moore Plaza Line Sanitary Sewer Rehabilitation
· Allison WWTP Trunk Main Line "A" (MH 4975-MH 10921) and Line "B" (MH 10917-MH
10916)
· Greenwood Trunk Main System
· IH 37, SH 286 Crosstown Expressway, SH 358 Padre Island Drive Cleaning and Televising
· Manhole Replacements-Old Brownsville Road 2005
· Freeway System Cast Iron Pipe Rehabilitation
2. SCOPE OF WORK. "CONSULTANT" shall provide services for the PROJECT in
accordance with the accompanying Letter, Scope of Services, and Fee attached as "Exhibit A".
3. FEE. The 'CITY' agrees to pay the "CONSULTANT" for services provided in accordance
with Exhibit "A", Scope of Services, and Fee under this AMENDMENT NO. 8, a total fee not to
exceed $182,436.00 (in figures), (One Hundred Eight'v-Two Thousand, Four Hundred Thirty-Slx
Dollars and Zero Cents) (in words), for a total restated fee not to exceed $670,642.00 (in figures),
(Six Hundred SevenW Thousand, Six Hundred Forty-Two Dollars and Zero Cents (in words).
4. INVOICE. "CONSULTANT" shall submit invoices for the PROJECT in acoordanco with the
accompanying sample attached as "Exhibit C". For services provided in the Preliminary Phase,
Design Phase, and Bid Phase, "CONSULTANT" will submit monthly invoice statements lor services
rendered. For services provided in the Construction Phase, the invoice statement will be based
,,mnn th,~ n~r,-'~nt r~f ,"r, mpletion et the construction contract. "CITY" will make prompt monthly
2005-066 'CONSULTANT" monthly estimates.
02/22/05 AMD. NO, 8
Page 1 el 2
M2005-062 ,~,m,~ ~ ~.~.~.~ ~ .~
HDR Engineering
Assistant City Manager
HDR ENGINEERING INC.
Carl Gruff, P.E., Vice President
5151 Flynn Parkway, Suite 314
Corpus Christi, TX 78411
APPROVED AS TO FORM: (361) 857-2216 Office
r~q)ir ~,~of 'E (361) 857-0509 Fax
ngineering Services (Date)
Operating Depa~ment (Date)
Project Number: 7335 & 7336
Funding Source: 550950-4500-00000-
550950-4500-0gO00-
Encumbrance Number:
AMD. NO. 8
· Page 2 of 2
I--DR ONI- ('()h. II~AN~' .ll,tn.l' .%'olution.; '
January 25, 2005
Ange(Es~obar, P.E., Director
Mr
Department o~o~gineering Services
City of Corpus Chr'rst~
P.O. Box 9277
Corpus Christi, TX 78469-~77
R~: Sanitar~ Sewer Trunk Main Rehabilitationj
Proposed Amendment No.
Manhole Replacements & Cast Iron Pipe Rehabilitation Under Freeway System
Dear Mr. Escobar;
One of the purposes of the Greenwood Sanitary Sewer Trunk Main Cleaning project (#7292)
was to ascertain the cause of the settlement of'the manhole at the Home Rd/Navigation Blvd.
and Old Brownsville Rd intersection. Due to the condition of this manhole and the adjacent
lines, attempts to determine the cause have not been successful. Two other manholes in this
area have also settled; one at the Omaha/Old Brownsville Rd. intersection and another near the
end of the present Omaha pavement. In conversations with Engineering and Wastewater
personnel, HDR Engineering has been asked to prepare bid documents to replace these
manholes.
The Primary purpose of the IH-37, SH 286 (Crosstown Expressway) and SH 358 (Padre Island
Dr.) - Sanitary Sewer.Cleaning and Televising project (#7304) was to ascertain the condition of
the sanitary sewer lines under the freeway system. The project included cleaning a number of
cast iron pipe crossings ranging in size from 8" to 30" diameter. Some of the crossings that were
labeled on the City base maps as VCP were discovered to be CIP (there may be more). To
date, there are 21 crossings in the project that are CIP. These cast iron pipes were placed
under the freeway system at the time it was built on the premise that cast iron pipe would
withstand the embankment and construction loads better than vitrified clay. The cast iron pipe
crossings that have been cleaned to date are severely tuberculated and deteriorated most likely
due to the action of H2S gases or the resistivity of the surrounding soil. Initially the goal was to
remove all the tuberculation. However after cleaning the first cast iron segment and discovering
the fragile condition of the line (along with many holes), the contractor was instructed to clean
[he pipes sufficiently to restore as much of the flow capacity as possible without damaging the
pipe. Even with the reduced cleaning efforl:, a second segment was discovered with multiple
holes. The rehabilitation of both these segments using the CIPP process is the subject of a
change order on the City Council agenda on December 21. In conversations with Engineering
and Wastewater personnel, HDR Engineering has been asked to prepare bid documents to
rehabilitate all the cast iron pipe segments under the freeway system.
For the manhole replacements, we envision removing the existing manholes, installing 4 drilled
shaft piers through the underlying sand layer to a lower clay layer, constructing a 10' xl0'
concrete base, and installing a new fiberglass manhole. The portions of the lines adjacent to
these manholes that have settled will also be replaced to the proper grade. The work on the
manholes will require extensive bypass pumping. All work within Old Brownsville Rd. will require
HDR Engine!ring, Inc,
AMD. NO. 8
EXHIBIT "'A"
Page I of 7
Mr. Angel Es~obar, P.E.
January 25, 2005
Psge 2 of 4
coordination with, and a permit from, TXDOT. Our preliminary estimate of the construction costs
to replace these three manholes is $810,000.
For the cast iron pipe crossings, we will evaluate the service area to ascertain the amount of
flow as well as the capacity of the existing fine. From that the most appropriate rehabilitation
method will be determined -- ClPP or pipe bursting. The rehabilitation of these line segments
will require coordination with TXDOT. Tom Bacon has indicated that he would like to include the
36" line at Doss St. (IH-37 and Crosstown, upper end of the Salt Flats line) as an additive
alternate to this project. He also indicated a desire to rehabilitate the manholes on the ends of
the crossings. If the CIPP process is used, additional line cleaning will be required to make the
lines ready for the liner. Assuming that the rehabilitation method for all the crossings is CIPP,
and based on the change order pricing for the two crossings that are being rehabilitated as well
as previous bid pdces, our preliminary estimate of the construction costs is $1,750,000. If pipe
bursting is necessary for capacity reasons, [his figure could be higher.
There are two crossings in the Calallen/Annaville area that the master plan indicates to have a
parallel line in the future. A decision will need to be made as to whether to make these
crossings larger to accommodate the future flows. If that is the case then boring and casing will
be necessary at those locations.
HDR is pleased to assist the City with these projects. Due to the diverse nature of the work, two
sets of bid documents and two construction contracts are envisioned. We propose that this work
be authorized as Amendment No 8 to our current contract. Our fee proposal for this work is
$76,618 for the manhole replacements and $67,878 for the freeway crossings rehabilitation.
Construction observation services are an Additional- Service. We have budgeted 280 hours of
construction observation for the manhole replacement project and 120 hours for the cast iron
line rehabilitation project. The total fee for basic service is $144,496 and for additional services
$37,940 for a total fee of $182,436.
The fee breakdown by project and phase is:
Design Phase
Bid Phase
Construction Phase
BASIC SERVlCES SUBTOTAL
Construction Observation
(Additional Service)
TOTAL FEE
Manhole Replacements
,$46,107
$ 7,196
$25,315
$76,618
$26,180
$102.798
Cast Iro~ Line
Rehabilitation
$35,249
$ 6,431
$26,198
$67,878
$11,760
$79.638
Our proposed approach to the manhole replacement project is
A. DESIGN PHASE 1) Review soil boring information to determine foundation parameters
2) Prepare bypass pumping scenarios
3) Prepare traffic control plans
HDfl Engil.aring, Inc.
AMD. NO. 8
EXHIBIT "A"
Page 2 of 7
Mr Angel Escobar, P.E.
January 25, 2005
Page 3 of 4
4) Discuss traffic control package with TXDOT and receive their concurrence,
5) Prepare foundation plans
6) Prepare bid package.
7) Prepare opinion of probable cost.
8) Submit 100% package for review.
B. BID PHASE 1) Attend prebid meeting
2) Prepare addenda
3) Prepare bid tabulation
4) Recommend award
C. CONSTRUCTION PHASE
1) Attend preconstruction conference
2) Provide clarification to specifications
3) Review submittals
4) Prepare change orders
5) Attend final inspection
6) Eight site visits
7) Construction observation services (Additional Service)
Our proposed approach to the Freeway Crossing Rehabilitation project is:
A. DESIGN PHASE
1 ) Review service areas to determine flows and adequacy of each of the crossings.
2) Determine most appropriate rehabilitation method for each crossing.
3) Use location maps and aerial photographs from cleaning contract for the site plans.
4) Using TXDOT's standard traffic control details for shod duration operations, select the
most appropriate detail for the specific location.
5) For locations where the standard details are not applicable, prepare a traffic control
plan.
6) Discuss traff~c control package with TXDOT and receive their concurrence.
7) Prepare pipe bursting specification.
8) Prepare bid package.
9) Prepare opinion of probable cost.
10) Submit 100% package for review.
B. BID PHASE
1) Attend prebid meeting
2) Prepare addenda
3) Prepare bid tabulation
4) Recommend award
C. CONSTRUCTION PHASE 1) Attend preconstruction conference
2) Provide clarification to specifications
3) Review submittals
AMD. NO. 8
EXHIBIT "A"
Page 3 of 7
Mr Angel Escobac PE
January 2~ 2005
Page 4 of 4
4) Prepare change orders
5) Attend final inspection
6) Six site visits
7) Construction observation services (Additional Service)
We propose to have 100% bid packages ready for review within 75 calendar days of
authorization to proceed with the work; The schedule is dependent upon TXDQT's review and
concurrence with the project approach and the tra~c control measures at each location.
Should this proposal be acceptable, please process the necessary amendment to our contract
so that we can begin work.
If you have any questions, please call.
~arl E. Crull, P.E.
vice President
CC: Chades Baish, Project Manager
Attachment: Preliminary Construction Cost Estimates
AMD. NO. 8
EXHIBIT "A"
Page 4 of 7
PROJECT SCHEDULES
(1) Manhole Replacements - Old Brownsville Road (Project No. 7335)
DAY DATE
Wednesday February 23, 2005
Friday May 6, 2005
Friday May 20, 2005
Wednesday June 8, 2005
Monday (2) June 13 and 20, 2005
Wednesday June 22, 2005
Wednesday June 29, 2005
Monday July 25, 2005
Friday TBD
ACTIVITY
Begin Design Phase
60% Submittal
Complete City Review
Final Submittal
Advertise for Bids
Pre-Bid Conference
Receive Bids
Begin Construction
Construction Completion
(2) Freeway System Cast Iron Pipe Rehabilitation (Project No. 7336)
DAY DATE
Wednesday February 23, 2005
Friday April 29, 2005
Friday May 13, 2005
Friday May 27, 2005
Monday (2) June 5 and 13, 2005
Wednesday June 15, 2005
Wednesday June 22, 2005
Monday July 18, 2005
Friday TBD
ACTIVITY
Begin Design Phase
100% Submittal
Complete City Review
Final Submittal
Advertise for Bids
Pre-Bid Conference
Receive Bids
Begin Construction
Construction Completion
AMD. NO. 8
EXHIBIT "A"
Page 5 of 7
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AMD. NO. 8 I
EXHIBIT "A"
Page 6 of 7
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IAMD. NO. 8
EXHIBIT "A"
Page 7 of 7
CITY OF CORPUS CHRISTI
DISCLOSURE OF INTERESTS
City of Corpus Chrisii Ordinance 17112, as amended, requires all persons or firms seeking to do business with the City
to provide the following information. Every question must be answered. If the question is not applicable, answer with
"N/A".
FIRM NAME: HDR Enqineerin(;], Inc.
STREET: 5151 Flvnn Parkway, Suite 314
FIRM Is: 1~ Corporation X 2. Partnership.__
5. Other
CITY:
Comus Christi ZIP: 7{1411
3. Sole Owner 4. Association
DISCLOSURE QUESTIONS
If additional space is necessary, please use the reverse side el this page or attach separate sheet.
State the names of each employee of the City of Corpus Christi having an ownership Interest constituting
3% or more of the ownership In the above named I'lrm.
Name Job ~fle and City Del)admen[ (If k~ow'n)
N/A
State Ute names of each official of the City of Corpus Christi having an ownership Interest constituting 3*.4,
or more of the ownership In Ute above named I'lrm.
Name Title
N/A
State the names of each board member of the City of Corpus Christi having an ownership Interest
constituting 3% or more of the ownership In the above named I'lrm.
Name Board, Commlsslo~ or Commiltee
N/A
Slate the names of each employee or officer of a consultant I'or Ute City of Corpus Christi who worked on
any matter related to Ute subject of this co~b'act and has an ownership Interest constituting 3.,.~ or more of
the ownerehlp In the above named firm.
N/A
CERTIFICATE
I certify that all information provided is true and correct as of the date et this statement, that I have not knowingly
withheld disclosure of any intormation requested; and that supplemental statements will be promptly submitted to the
City of Corpus Christi, Texas as changes occur.
Certifying Person: Carl E. Crull, P.E. Title: Vice President
Signature of Certifying Person: ~/~""~~ Date:
IEXHIBIT "B" I
.Page 1 of 2
DEFINITIONS
a. Board Member. A member ot any board, commission or committee appointed by the City Council of the City of
Corpus Christi, Texas.
b. Em.ployee. Any person employed by the City of Corpus Christi, Texas, either on a full or part time basis, but not as
an ~ndebendent contractor
c. Firm. Any entity operated for economic gain, whether professional, industrial or commercial and whether
established to produce or deal with a product or service, including but not limited to, entities operated in the form
of sole proprietorship as self-employed person, par~ership, corporation, joint stock company, joint venture,
receivership or trust and entities which, for purposes ol taxation, are treated as non-profit organ zat ons.
d. Official. The Mayor, members ot the City Council, City Manager, Deputy City Manager, Assistant City Managers,
Department and Division Heads and Municipal Court Judges of the City of Corpus Christi, Texas.
e. Ownership Interest. Legal or equitable interest, whether actually or constructively held, in a firm, including when
such interest is held through an agent trL~st, estate or holding entity. Constructively held refers to holding or
control established through voting trusts, proxies or special terms of venture or partnersh p agreements.
f. Consultant. Any person or firm, such as engineers and architects, hired by the City of Corpus Christi for the
purpose of professional consultation and recommendation.
IEXHIBIT "B"
Page 2 of 2 I
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