Agenda

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C. 5

To:	Board of Supervisors
From:	Brian M. Balbas, Public Works Director/Chief Engineer
Date:	June 22, 2021

Contra

Costa

County

Subject:

Approve the contingency fund increase for the Alhambra Valley Road Realignment-West of Bear Creek Road Project, Martinez and Pinole areas

APPROVE	OTHER
RECOMMENDATION OF CNTY ADMINISTRATOR	RECOMMENDATION OF BOARD COMMITTEE

Action of Board On: 06/22/2021

APPROVED AS RECOMMENDED

OTHER

Clerks Notes:

VOTE OF SUPERVISORS

AYE:

John Gioia, District I Supervisor
Candace Andersen, District II Supervisor
Diane Burgis, District III Supervisor
Karen Mitchoff, District IV Supervisor
Federal D. Glover, District V Supervisor

Contact:

Adelina Huerta, 925.313.2305

I hereby certify that this is a true and correct copy of an action taken and entered on the minutes of the Board of Supervisors on the date shown.
ATTESTED: June 22, 2021
Monica Nino, County Administrator

BY:	, Deputy

RECOMMENDATION(S):

APPROVE the Alhambra Valley Road Realignment-West of Bear Creek Road Project contingency fund increase of $75,000 for a new contingency fund total of $117,185, and a new payment limit of $539,035, effective June 22, 2021, as recommended by the Public Works Director. County Project No. 0662-6U4095 (District I and V)

FISCAL IMPACT:

The project is being funded by 12% Measure J Return to Source (RTS) Funds and 88% Local Road Funds.

BACKGROUND:

The contingency fund increase is necessary to compensate the contractor for unforeseen extra work required to complete the project. While excavating for the new road realignment, the contractor encountered a very soft and wet soil condition, which could not be compacted to build a proper road foundation. In order to build a structurally sound roadway, Public Works instructed the contractor to over-excavate an additional foot down, place a layer of geotextile fabric to provide support, and refill with imported base material that can be compacted to specifications. The requested contingency fund increase is for the extra work and additional materials.

CONSEQUENCE OF NEGATIVE ACTION:

The lack of approval would prevent successful completion of this contract and prevent payment for the additional work performed by the contractor.