Agenda

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C. 2

To:	Board of Supervisors
From:	Julia R. Bueren, Public Works Director/Chief Engineer
Date:	May 2, 2017

Contra

Costa

County

Subject:

Contract Amendment with Mark Thomas & Company, Inc. for the Kirker Pass Road Northbound Truck Climbing Lane Project, Concord area.

APPROVE	OTHER
RECOMMENDATION OF CNTY ADMINISTRATOR	RECOMMENDATION OF BOARD COMMITTEE

Action of Board On: 05/02/2017

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:

Nancy Wein, 925 313-2275

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: May 2, 2017
David Twa,

BY:	, Deputy

RECOMMENDATION(S):

APPROVE and AUTHORIZE the Public Works Director, or designee, to execute Contract Amendment No. 1 with Mark Thomas & Company, Inc., effective May 2, 2017, to increase the payment limit by $258,000 to a new payment limit of $1,350,000 to provide additional professional engineering services, including construction support, and extend the termination date by one year to a new termination date of December 31, 2019, for the Kirker Pass Road Northbound Truck Climbing Lane Project, Concord area. (Project No. 0662-6R4052)

FISCAL IMPACT:

The Consulting Services Agreement will be funded by the Measure J Transportation Sales Tax (Measure J) Program. The construction of the project will be funded by federal funds from the State Transportation Improvement Program (STIP), as well as funding from Measure J and other local road funds.

BACKGROUND:

On April 1, 2014, the Board of Supervisors approved a Consulting Services Agreement with Mark Thomas & Company, Inc. to provide professional engineering services for the Kirker Pass Road Northbound Truck Climbing Lane Project. Professional engineering services include preparing plans, specifications, and estimates, including geological and hydraulic studies, and on-call construction support during the project’s construction.

During the course of preliminary design, additional exploration, design work, and project management was identified in order to complete design of the project. In addition, an asphalt concrete overlay will be added to the scope of the project in order to improve the pavement condition of the existing roadway.

CONSEQUENCE OF NEGATIVE ACTION:

Without Board of Supervisor’s approval, a delay in the design of the project will jeopardize the STIP funding programmed for construction of the Kirker Pass Road Truck Climbing Lane project, and may also result in substantial additional project costs.