HomeMy WebLinkAboutC2018-517 - 8/2/2018 - NA ,
TASK ORDER NO. 9
This Task Order pertains to a Master Services Agreement for Geotechnical and Construction Materials Testing by
and between City of Corpus Christi, Texas (City)and Tolunay-Wong Engineers, Inc., (Lab)dated January 16,
2018 by Motion No. M2018-005 (Agreement). Lab shall perform services on the project described below as
provided in this Task Order and in the Agreement. This Task Order shall not be binding until it has been properly
signed by both parties. Upon execution, this Task Order shall supplement the Agreement as it pertains to the
project described below.
MSA PROJECT NUMBER/NAME: 17101A Geotechnical and Construction Materials Testing
TASK ORDER PROJECT NUMBER/NAME: 17101J Geotechnical and Construction Materials Testing
1. PROJECT DESCRIPTION: 18014A Everhart(SPID to Holly)
2. SCOPE OF SERVICES—GeoTech and/or Construction Material Services to observe,test and report for the
Everhart(SPID to Holly) project, and as more fully described in Exhibit A.
3. COMPENSATION—The total amount not to exceed for this Task Order only is$20,060.00.
This Task Order is approved, and Lab may proceed. All other terms and conditions of the Agreement remain in
full force and effect.
0
CITY OF CO' ' -ISTI TOLUNAY-WONG ENGINEERS,INC.
.i . 12---12-gf 1.30. 18
Je H. Edmonds, P.E. Date Don R. Rokohl, P. E. Date
Director of Engineering Services Branch Manager
826 South Padre Island Drive
Corpus Christi, TX 78416
(361)884-5050 Office
drokohl@tweinc.com
Fund Name Accounting Unit Account No. Activity No. Amount
ST2015 GO BD 14 3551-051 550920 18095-A-3551-EXP $20,060.00
C2018-517
8/02/18
Task Order No.9
Testing Agreement
Tolunay-Wong Engineers Inc. Page 1 of 2
SCANNED
TASK ORDER FUNDING REQUEST FORM
CONTRACT MSA#AND TITLE: 17101A Geotechnical and Construction Materials'resting(TVV E)
TASK ORDER PROJECT#/TITLE: 17101J Geotechnical and Construction Materials Testing(TWE)
REQUESTING DEPARTMENT:Engineering Services
FUND NAME/FUND#-ME: _ACCOUNT: ACTIVITY:
3551-051 550920 18095-A-3551-EXP
CONSULTANT:TOLUNAY-WONG ENGINEERING, INC.
TASK ORDER#:9
SCOPE OF WORK:SEE PROPOSAL
TASK ORDER IS FOR PROJECT(S)LISTED BELOW:
PROJECT# FEE PROJECT NAME
18014A S20,060 Everhart(SPID to Holly)
S20,060 Grand Total
Marisa Alaniz
PM PRINT NAME:
SIGNATUR .
7/26/2018
DATE:
Task Order No.9
Testing Agreement
Page 2 of 2
Tolunayr-Wong 10 Engineers, Inc.
826 South Padre Island Drive • Corpus Christi,Texas 78416 • Phone:(361)884-5050
July 25, 2018
City of Corpus Christi
P. O. Box 9277
Corpus Christi,Texas 78469-9277
Attn: Ms. Marisa Alaniz,E.I.T.
MarisaAl@cctexas.com
Ref: Revised Proposal for Geotechnical Services
E18014A Everhart Road—SPID to Holly Road
Corpus Christi,Texas
TWE Proposal No.: P18-C097R1
Dear Ms. Alaniz,
Tolunay-Wong Engineers, Inc. (TWE) is pleased to submit this revised proposal to provide
geotechnical services for the referenced project. This proposal presents a general description of the
project, our proposed scope of services to be provided and the estimated cost for completion of our
services associated with the project.
Project Overview
We understand that the project will involve reconstruction of a segment of Everhart Road in Corpus
Christi, Texas with either a flexible (asphalt) or rigid (concrete) pavement sections(s) as well as
replacement of underground utilities as needed. Everhart Road from South Padre Island Drive
(SPID)to Holly Road is about 3750 feet long with an asphalt surface. Visual observations indicate
the street is in poor condition with asphalt cracking, patches, and some uneven lanes. We
understand that the road receives a mixture of mostly commercial and residential vehicular traffic.
The results of a traffic count of all vehicles on Everhart Road during September 21, 2017 (24 hour
period) were provided as part of the request for proposal. However, an actual traffic count of the
vehicular mix has not been made available to us at the current time. We understand that traffic
information will be provided to us for this study.
Scope of Services
We will provide the personnel, equipment and materials necessary to complete the requirements of
our scope of services. Our scope of services can be categorized into three major areas: field
program, laboratory testing and engineering analysis/report preparation. The purpose of our
geotechnical services will be to provide the geotechnical information needed to assist the Client in the
design and construction of the new roadway cross section(s).
Field Program
The subsurface conditions along this segment of Everhart Road will be explored by performing a
total of nine (9) test borings, spaced about 500 feet apart, as requested. The requested exploratory
depths are three (3) test borings to depths of 25-ft and six (6) test borings to depths of 5-ft below
existing grade. It is planned that the borings will be drilled with truck mounted drilling equipment.
Houston • Dallas • Corpus Christi • La Porte • Beaumont • Lake Charles • Baton Rouge • New Orleans
Page 1 of 5 Exhibit A
1 Tolunay-Wong
July 25,2018
Engineers, Inc. TWE Proposal No.P18-C097R1
Traffic control will be provided by Highway Barricades and Services, LLC (HBS). We anticipate
that the traffic control devices used will consist of a two (2) man crew with truck-mounted
attenuators, arrow boards, signage and channelizing devices. A traffic control plan will be
submitted on July 25, 2018 by HBS on behalf of TWE to the City Traffic Engineering department
for their approval so that the necessary permit can be obtained.
The test boring locations will be identified by TWE and surveyed using a hand-held global
positioning system(GPS) device. This proposal does not include pricing for professional surveying
services to provide precise coordinates and elevations of the test boring locations. If necessary,
pricing for these services can be provided upon request by the Client.
Once the test boring locations are identified within the project site, we will notify the Texas 811
One Call System prior to the commencement of our field program for clearance of subsurface
utilities and/or pipelines within the project site. Our field personnel will have the appropriate safety
training and will be equipped with the appropriate personal protective equipment for work on an
active City street.
Our geotechnical services will be under the direction of a Professional Engineer experienced in
geotechnical engineering. Our test borings will be logged by an experienced geotechnician. We
will dry-auger the test borings until groundwater is observed or until borehole conditions require the
use of wash-rotary drilling methods. When groundwater is encountered,the level will be allowed to
stabilize for about ten(10)minutes to fifteen(15)minutes prior to completing the test borings.
Geotechnical drilling and sampling will be performed in accordance with ASTM International
standards. Samples will be obtained continuously to a depth of 12-ft, at the 13-ft to 15-ft depth and
at 5-ft depth intervals thereafter until the boring completion depth is reached. The existing
pavement section(s) will be penetrated by dry augering and the thickness of the pavement section
component(s)will be carefully measured and recorded by the geotechnician.
Fine-grained, cohesive soils will be sampled using pushed, thin-walled Shelby tubes with an inside
diameter of 2.87-in. Our geotechnician will conduct field strength measurements using a pocket
penetrometer or hand torvane device on each cohesive soil sample recovered. The samples will be
wrapped in foil, placed in labeled moisture sealed plastic bags, and placed in core boxes to
minimize disturbance prior to transport to our laboratory.
Where coarse-grained, cohesionless and semi-cohesionless soils are encountered, sampling will be
performed using standard penetration test (SPT) methods. Our geotechnician will monitor the
driving resistance and record blow counts while performing the SPTs. The disturbed samples from
the SPT sampling will be placed in labeled moisture sealed plastic bags and delivered to our
laboratory.
The boreholes will be backfilled with soil cuttings and, as needed, imported backfill materials upon
completion of drilling and sampling. The surface of the boreholes will be repaired with an asphalt
cold patch or freshly mixed bagged concrete,whichever is appropriate.
Houston • Dallas • Corpus Christi • La Porte • Beaumont • Lake Charles • Baton Rouge • New Orleans
Page 2 of 5
Exhibit A
•
Op1'olunay-Wong July 25,2018
Engineers, Inc. TWE Proposal No.P18-C097R1
Laboratory Testing
Selected samples from the test borings will be used for laboratory testing. Our laboratory testing
program will include properties such as moisture content, unit weight, unconfined compressive
strength, unconsolidated-undrained triaxial compressive strength, Atterberg Limits and grain size
distribution including percent passing No. 200 sieve.
Engineering Analysis/Report Preparation
Engineering analysis will be conducted utilizing the information collected during our field program
and laboratory testing services. We will provide geotechnical design and construction
recommendations for the proposed roadway rehabilitation. We will present the results and findings
of our geotechnical services in a final written report. Electronic and hard copies of our final report will
be issued to the Client as requested.
Our fmal report will include the following:
a. Discussion and conclusions of findings including:
• Summary of field and laboratory tasks;
• Existing project site conditions;
• Subsurface soil and groundwater conditions;
• Boring logs presenting tabulated field and laboratory test results;
b. The boring log from test boring CD-7 (TWE Project No. 14.53.006). The
subsurface soil and groundwater information indicated by the test boring CD-7 will
be utilized during the analysis of pavements and foundations;
c. Geotechnical design recommendations for the proposed roadway rehabilitation in
accordance with the AASHTO Guide for Design and Pavement Structures including
suitable flexible and rigid pavement sections for 20-yr and 30-hr service periods,
suitability of recycling the existing pavement section for incorporation into the new
pavement section, layer material types, layer material thicknesses and subgrade
support characteristics. Several thickness combinations of each pavement
component will be considered as well as options for either lime stabilization or the
use of geogrid as a substitute for lime stabilization. A locally available crushed
concrete will be considered as a substitute for crushed limestone as flexible base
material;
d. Geotechnical design recommendations for the proposed signal pole foundations
including drilled shaft foundation type, diameter and embedment length based on
results of the test borings;
e. Geotechnical design recommendations for the proposed underground utility
installations including OSHA soil classifications and soil design parameters for
trench excavation and braced excavation design;and,
f. Geotechnical construction considerations including site and subgrade preparation,
in-place soil stabilization, fill and backfill placement, compaction requirements,
foundation installation and overall quality control inspection,monitoring and testing
guidelines.
Houston • Dallas • Corpus Christi • La Porte • Beaumont • Lake Charles • Baton Rouge • New Orleans
Page 3 of 5
Exhibit A
iolunav-Wong
July 25,2018
Engineers, Inc.
TWE Proposal No.P18-C097R1
Schedule
Upon notice to proceed, our field program can typically commence within about five(5) working days
depending on our current field schedule, site access, weather contingencies and location of subsurface
utility and/or pipelines within the project alignment. We anticipate our field program will take two (2)
to three (3) working days to complete with laboratory testing beginning as soil samples are returned to
the laboratory. We anticipate that laboratory testing will be completed within two (2) weeks once
assignments are submitted. Preparation of our final report will require one (1) to two (2) weeks after
all laboratory testing is completed. We anticipate an overall project duration of five (5) weeks from
notice to proceed to completion of our final report. During this time, we will communicate with the
Client and provide preliminary geotechnical information as needed to avoid delays in the overall
project schedule.
Estimated Cost
The estimated cost associated with our geotechnical services for this project is lump sum of
$20,060. A detailed summary of the estimated cost is presented below. Every reasonable effort
will be made to stay within this proposed budget. Should unforeseen conditions or situations occur
that are beyond the control of TWE, we will not exceed this lump sum amount without prior
approval from the Client.
Description Unit Quantity Rate Extension
Field Program
1 Traffic Control Services (HBS) day 3 $1,400.00 $4,200.00
Mobilization/Demobilization of
2 lump sum 1 $500.00 $500.00
Geotechnical Equipment/Personnel
3 Geotechnical Drilling/Sampling, 0'-50' foot 105 $20.00 $2,100.00
4 Backfill/Patching of Boring Locations foot 105 $4.00 $420.00
5 Geotechnician day 3 $650.00 $1,950.00
6 Support Vehicle trip 3 $75.00 $225.00
7 Standby Time (Outside of TWE hour - $250.00 -
Control)
Laboratory Testing
8 Moisture Content/Visual Classification each 17 $20.00 $340.00
9 Atterberg Limits each 9 $50.00 $450.00
10 Percent Finer Than No. 200 Sieve each 17 $50.00 $850.00
11 Sieve Analysis each 3 $65.00 $195.00
12 Unconfined Compression Strength each 7 $50.00 $350.00
13 U-U Triaxial Compression Strength each 7 $60.00 $420.00
Houston • Dallas • Corpus Christi • La Porte • Beaumont • Lake Charles • Baton Rouge • New Orleans
Page 4 of 5 Exhibit A
1110 Tolunay-Wong
En meers, Inc. July 25,2018
TWE Proposal No.P18-C097R1
Engineering Analysis/Report Preparation
14 Senior Geotechnical Engineer hour 10 $170.00 $1,700.00
15 Project Manager- Geotechnical hour 40 $150.00 $6,000.00
16 Administrative Assistant hour 6 $60.00 $360.00
Total Cost Estimate $20,060.00
Closing
We understand that the City will issue a Project Task Order upon acceptance of this proposal in
accordance with the Master Service Agreement (Project No. E17101A) between the City of Corpus
Christi and Tolunay-Wong Engineers, Inc. and the Task order will serve as our authorization to
proceed with our services for the project.
If you have any questions regarding this proposal, please contact us at (361) 884-5050. We appreciate
your consideration of TWE for this project and look forward to working with you.
Sincerely,
TOLUNAY-WONG ENGINEERS, INC.
Texas Board of Professional Engineers Firm Registration Number F-000124
—b___ I-e_ 126-led-4.
Don R. Rokohl, P.E.
Branch Manager
DRR/drr
Houston • Dallas • Corpus Christi • La Porte • Beaumont • Lake Charles • Baton Rouge • New Orleans
Page 5 of 5 Exhibit A