ADMINISTRATIVE REPORT
MEETING DATE: December 17, 2025 AGENDA CATEGORY: Consent - Bids TO: Honorable Mayor and City Council
FROM: Zachary Meyer, Public Works Director
DATE: December 3, 2025
SUBJECT: Downtown Part Circle Culvert Improvements at Various Locations:
1. Accept bid and approve contract with Westrock General Engineering ($1,819,999) for said project;
2. Authorize staff to approve, as necessary, up to $100,000 in City-controlled contingency for unforeseen conditions encountered during construction of said project. (Ward 2)
RECOMMENDATION:
Staff recommends acceptance of low bid, approval of contract, and approval of City -controlled contingency.
BACKGROUND:
The work to be performed consists, in general, of replacing existing part-circle culverts with 26 curb ramps per Caltrans Standard Plan A88A across 8 intersections, install a 200-foot long drain line with a pair of ductile iron pipe, and a 650 -foot long dual wall polypropylene storm drain line. Such work may require grade adjustments to existing valve boxes and vault covers, protecting in place of existing features, removal an d/or replacement of asphalt pavement and other minor concrete structures to specified elevations. Work also includes installation of concrete cross gutters and the addition of or modification to storm drain pipe, manholes, and catch basins.
Item No. 1. This project is funded through Sewer Enterprise Funds (SEF). The Engineer’s Estimate for this project was $2,382,000.00.
On November 20, 2025, the City received three (3) bids for this project. All bids are deemed acceptable.
Those acceptable bids are as follows:
Westrock General Engineering
7005 Downing Avenue
Bakersfield, CA 93308
in the amount of
$1,819,999.00
Sierra Construction & Excavation, Inc.
7117 Charity Avenue
Bakersfield, CA 93308
in the amount of
$1,829,770.00
Bowman Asphalt, Inc.
3333 Gibson Street
Bakersfield, CA 93308
in the amount of
$2,588,575.00
Staff recommends acceptance of the bids and approval of the construction contract to the lowest responsive and responsible bidder, Westrock General Engineering.
Item No. 2. Bakersfield Municipal Code section 3.20.105(E) authorizes Public Works Contract Amendments to be executed via Change Order, provided that Change Orders which exceed $10,000 must be approved by the City Council. Staff is requesting pre -approval of up to $ 100,000 for City -controlled contingency for unforeseen conditions encountered during construction of this project, to be executed via authorized Change Order(s). Any costs which exceed the City Council approved contingency, cumulative or otherwise, would re quire action and approval from the City Council. This City-controlled contingency will save staff time by not having to prepare multiple Council reports for individual routine change orders throughout the project, should they arise. All remaining contingency funds not used will be returned to the fund balance at the end of the project.
FISCAL IMPACT:
This project is funded with Sewer Enterprise Funds; therefore, there is no General Fund impact associated with the award of this project. There are sufficient funds in this project (26PWDE08) to award the contract and cover City controlled contingency and construction engineering.
COUNCIL GOAL:
Reliable Infrastructure
ATTACHMENTS:
Agreement