Item 4C - MemoItem 4C
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M E M O R A N D U M
(January 17, 2023)
To: Shana Yelverton, City Manager
From: Rob Cohen, Director of Public Works
Subject: Award the contract for the construction of the Timarron Creek
and BB-8 Erosion Protection project to David-Tehoungue, Ltd.,
Co. in an amount not to exceed $205,000.
Action
Requested: Award the contract for the construction of the Timarron Creek and
BB-8 Erosion Protection project to David-Tehoungue, Ltd., Co. in an
amount not to exceed $205,000.
Background
Information: The purpose of this project is to reinforce several areas where the
city’s wastewater infrastructure has been exposed to excessive
erosion. Sanitary sewer manholes and pipelines are exposed to
stream flows, potentially compromising the integrity of the sewer
system.
The Timarron Creek portion of the project is located within the
drainage easement between E. Continental Boulevard and Longford
Drive in the Wyndsor Creek subdivision. The improvements at this
location includes the construction of permanent erosion control and
stream stabilization measures at three different sites where City of
Southlake sanitary sewer facilities are near or within Timarron Creek.
The BB-8 site is located between W. Continental Boulevard and
Independence Parkway within the Big Bear Creek tributary BB-8
drainage easement. The improvements will restore soil cover and
provide armoring protection to wastewater infrastructure that has
become exposed.
Solicitation of bids for this project began on November 6, 2022, and
sealed bids were received and opened on December 13, 2022. The
two proposals received for this project are shown below:
Bidder Total Bid Amount
David-Tehoungue, Ltd., Co. $ 164,490
ERS of MS, Inc. $ 261,261
Item 4C
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City staff and the design consultant, KSA, have reviewed and scored
two proposals using best-value criteria as the basis described in the
project manual. The evaluation criteria for this bid were the contract
price (50%), the reputation of the bidder including key personnel
(15%), the reputation and quality of the bidder's goods or services
(15%), the bidder's past relationship with the city (10%), and the
bidder's responsiveness (10%). The evaluation of materials and
references provided led to the recommendation of David-
Tehoungue, Ltd., Co. for this project. The total bid from David-
Tehoungue, Ltd., Co. came in at $164,490 for anticipated work; staff
is requesting authorization for a total of $205,000 which includes
$40,510 in contingency for construction expenses that may arise due
to unforeseen field conditions.
Financial
Considerations: Funding for the contract award is budgeted as part of the approved
FY 2022 Capital Improvement Program. This award is within the
project budget.
Strategic Link: This item links to the City’s Strategy Map strategic focus area of
Infrastructure. It specifically relates to the City’s Corporate
Objectives, F2: Invest to Provide & Maintain High Quality Public
Assets. The Critical Business Outcome is, CBO3: Engage In
Thoughtful Planning To Ensure Continued High-Quality
Development That Is Integrated Well Into The Current Built
Environment.
Citizen Input/
Board Review: None.
Legal
Review: This is the standard construction services contract that has been
previously reviewed by the City Attorney.
Alternatives: The City Council may approve or deny the contract.
Staff
Recommendation: Award the contract for the construction of the Timarron Creek and
BB-8 Erosion Protection project to David-Tehoungue, Ltd., Co. in an
amount not to exceed $205,000.
Supporting
Documents: Attachment A: Bid Tabulation
Staff
Contact: Rob Cohen, Director of Public Works
Kevin Ferrer, P.E., City Engineer
Kevin Taylor, P.E., Civil Engineer
Bid Date: December 13, 2022
Bid Time: 10:00 AM
CITY OF SOUTHLAKE
TIMARRON CREEK AND BB-8 TRIBUTARY EROSION PROTECTION PROJECT
KSA Project No. 100709
BID DESCRIPTION UNIT TOTAL UNIT TOTAL
NO.(with unit price in words)PRICE PRICE PRICE PRICE
1.01 Mobilization LS 1 35,000.00$ 35,000.00$ 30,000.00$ 30,000.00$
1.02 Temporary Erosion Control Measures LS 1 5,500.00$ 5,500.00$ 5,500.00$ 5,500.00$
1.03 Site Preparation LS 1 44,000.00$ 44,000.00$ 7,000.00$ 7,000.00$
1.04 Temporary Special Shoring LS 1 2,500.00$ 2,500.00$ 12,000.00$ 12,000.00$
1.05 Earthwork (Embankment)CY 104 27.00$ 2,808.00$ 155.00$ 16,120.00$
1.06 Remove 13"-24" Tree EA 2 1,970.00$ 3,940.00$ 3,250.00$ 6,500.00$
1.07 Gravel Fill for Engineered Bank Stabilization System &
Pyramattress CY 102 215.00$ 21,930.00$ 125.00$ 12,750.00$
1.08 Seed & Cellulose Fiber Mulch for Disturbed Areas SY 366 11.00$ 4,026.00$ 35.00$ 12,810.00$
1.09 Engineered Mattress System SY 41 250.00$ 10,250.00$ 200.00$ 8,200.00$
1.10 Engineered Bank Stabilization System LF 206 535.00$ 110,210.00$ 210.00$ 43,260.00$
1.11 Turf Reinforcement Mat SY 250 58.00$ 14,500.00$ 33.00$ 8,250.00$
1.12 Tied Concrete Block Mat System SY 60 109.95$ 6,597.00$ 35.00$ 2,100.00$
Total Bid Schedule 1.00 Amount 261,261.00$ 164,490.00$
*Denotes correction by Engineer
James McKenzie, P.E.
ERS of MS, Inc.DAVID-TEHOUNGUE, Ltd. Co.
Phone: 601.982.7788
Killeen, Texas 76549
5100 Lions Gate Lane
SUMMARY OF BIDS
Phone: 254.394.5752
1635 Lelia Dr., Suite 202
Jackson, Mississippi 39216
TOTAL BID SCHEDULES 1.00
UNIT QTY
Project Manager
Bid Schedule 1.00:
261,261.00$ 164,490.00$
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