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TASK ORDER NO. 29
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-Wonq 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: 17101AD Geotechnical and Construction Materials Testing
1. PROJECT DESCRIPTION: 18023A Junior Beck Dr- Bear Ln to Dead End
2. SCOPE OF SERVICES—GeoTech and/or Construction Material Services to observe,test and report for the
Junior Beck Dr- Bear Ln to Dead End project, and as more fully described in Exhibit A.
3. COMPENSATION —The total amount not to exceed for this Task Order only is $10,235.00.
This Task Order is approved, and Lab may proceed. All other terms and conditions of the Agreement remain in
full force and effect.
CITY OF CORP TI TOLUNAY-WONG ENGINEERS, INC.
- g • 9 ,z - taLk qz6.ict
Je . 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
Accounting Unit: 3557-051
Account: 550920
Activity: 18023-A- 3557-EXP
Account Category: 50920
Fund Name: ST2019 Bd18 P2
Amount: $10,235.00
Task Order No.29
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SCANNED
TASK ORDER FUNDING REQUEST FORM
CONTRACT MSA#AND TITLE: 17101A Geotechnical and Construction Materials Testing(TWE)
TASK ORDER PROJECT#/TITLE: 17101 AD Geotechnical and Construction Materials Testing(TWE)
REQUESTING DEPARTMENT:Engineering Services
FUND NAME/FUND#-ME: ACCOUNT: ACTIVITY:
3557-051 550920 18023-A-3557-EXP
CONSULTANT:TOLUNAY-WONG ENGINEERING,INC.
TASK ORDER #: 29
SCOPE OF WORK: SEE PROPOSAL
TASK ORDER IS FOR PROJECT(S)LISTED BELOW:
PROJECT# FEE PROJECT NAME
18m23A $10,235.00 Junior Beck Dr(Dead End to Bear Ln)
$10,235.00 Grand Total
Marisa Alaniz
PM PRINT NAME:
N� .11°1'1
l��c
SIGN• 1'E:
9/24/2019
DATE:
Task Order No.29
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Tolunay-Wong110
Engineers, Inc.
826 South Padre Island Drive • Corpus Christi,Texas 78416 • Phone:(361)884-5050
August 13, 2019
City of Corpus Christi
P. O. Box 9277
Corpus Christi, Texas 78469-9277
Attn: Ms. Marisa Alaniz, E.I.T.
MarisaAl@cctexas.com
Ref: Proposal for Geotechnical Engineering Services
18023A Junior Beck Drive Extension—Dead End to Old Brownsville Road
Corpus Christi, Texas
Task Order# 29
TWE Proposal No.: P19-C111
Dear Ms. Alaniz,
Tolunay-Wong Engineers, Inc. (TWE) is pleased to submit this proposal to provide geotechnical
engineering 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
It is our understanding that the project will involve new construction of the Junior Beck Drive
Extension from the dead end (west end) to Old Brownsville Road in Corpus Christi, Texas with
either a flexible (asphalt) or rigid (concrete) pavement section as well as possible construction of
underground utilities. The site is an open field covered by grass and weeds. We understand this
segment of the street will receive a mixture of light vehicular and heavy industrial traffic and that
the results of a traffic count of all vehicles on the existing Junior Beck Drive will be used for the
extension.
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 engineering services will be to provide the geotechnical information needed to assist the
Client in the design and construction of the street extension cross section(s).
Field Program
The subsurface conditions along this new extension of Junior Beck Drive will be explored by
performing a total of seven (7) test borings, spaced about 250 to 300 feet apartd. The proposed
exploratory depths are two (2) test borings to depth of 25-ft and five (5) 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 Orait A
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11,0 Tolunay-Wong
Engineers, Inc. August 13,2019
g TWE Proposal No.P19-C111
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 at 2-ft intervals 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.
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. Excess soil cuttings will be spread around the ground surface
of the test boring location.
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 construction. We will present the results and findings of
our geotechnical services in a final written report that includes results for Junior Beck Drive
Rehabilitation. Electronic and hard copies of our final report will be issued to the Client as requested.
Houston • Dallas • Corpus Christi • La Porte • Beaumont • Lake Charles • Baton Rouge • New Orait A
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OpTolunay-Wong
Engineers,Inc. August 13,2019
6� TWE Proposal No.P19-C111
Our final report will include the following:
a. Discussion and conclusions of fmdings 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. Geotechnical design recommendations for the proposed new roadway construction
in accordance with the AASHTO Guide for Design and Pavement Structures
including suitable flexible and rigid pavement sections for a 30-year service period,
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;
c. 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,
d. 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.
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 one (1)
to two (2) day(s) to complete with laboratory testing beginning as soil samples are returned to the
laboratory. We anticipate that laboratory testing will be completed within one (1) week once
assignments are submitted. Preparation of our final report will require two (2)to three (3) weeks after
all laboratory testing is completed. We anticipate an overall project duration of four (4) to five (5)
weeks from notice to proceed to completion of our fmal 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
$10,235. 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.
Houston • Dallas • Corpus Christi • La Porte • Beaumont • Lake Charles • Baton Rouge • New OrVpntit A
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Tolunay-Wong
August 13 219
Engineers, Inc. TWE Proposal No.P19-C111
Description Unit Quantity Rate � °ns oir °
Field Program
Mobilization/Demobilization of
2 Geotechnical Equipment/Personnel lump sum 1 $1,000.00 $1,000.00
3 Geotechnical Drilling/Sampling, 0'-25' hour 10 $250.00 $2,500.00
4 Geotechnician hour 12 $75.00 $900.00
5 Support Vehicle trip 1 $75.00 $75.00
6 Standby Time (Outside of TWE hour - $250.00 -
Control)
Laboratory Testing
7 Moisture Content/Visual Classification each 14 $15.00 $210.00
8 Plastic and Liquid Limits, 1-Point each 7 $50.00 $350.00
Method
9 Percent Finer Than No. 200 Sieve each 14 $50.00 $700.00
10 Unconfined Compression Strength each 5 $40.00 $200.00
11 U-U Triaxial Compression Strength each 5 $60.00 $300.00
Engineering Analysis/Report Preparation
12 Consultant hour 5 $185.00 $925.00
13 Project Manager- Geotechnical hour 16 $150.00 $2,400.00
14 Computer Aided Draftsman hour 7 $75.00 $525.00
15 Administrative Assistant hour 3 $50.00 $150.00
Total Cost Estimate $10,235.00
Closing
We understand that City Task Order #29 is assigned for these services in accordance with the
Master Service Agreement (Project No. E17101A) between the City of Corpus Christi and Tolunay-
Wong Engineers, Inc. Receipt of the executed 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.
Houston • Dallas • Corpus Christi • La Porte • Beaumont • Lake Charles • Baton Rouge • New OrMit A
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Tolunay-Wong August 13,2019
Engineers, Inc. TWE Proposal No.P19-C111
Sincerely,
TOLUNAY-WONG ENGINEERS,INC.
Texas Board of Professional Engineers Firm Registration Number F-000124
iz_ RJec
Don R. Rokohl, P.E.
Branch Manager
DRR/drr
Houston • Dallas • Corpus Christi • La Porte • Beaumont • Lake Charles • Baton Rouge • New Ortait A
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