Agenda

Return

C. 2

To:	Board of Supervisors
From:	Brian M. Balbas, Public Works Director/Chief Engineer
Date:	August 3, 2021

Contra

Costa

County

Subject:

APPROVE and AUTHORIZE a Contract Amendment with CH2M Hill Inc., Clayton area.

APPROVE	OTHER
RECOMMENDATION OF CNTY ADMINISTRATOR	RECOMMENDATION OF BOARD COMMITTEE

Action of Board On: 08/03/2021

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:	Neil Leary (925) 313-2278
cc:	Neil Leary, Design & Construction Ronald Thai - Design & Construction Xiuwei Tang - Design & Construction Cinda Tovar- Design & Construction

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: August 3, 2021
Monica Nino, County Administrator

BY:	, Deputy

RECOMMENDATION(S):

APPROVE and AUTHORIZE the Public Works Director, or designee, to execute Amendment No. 2 to the Consulting Services Agreement (CSA) with CH2M Hill, Inc., effective August 3, 2021, to extend the term from June 30, 2022 to December 31, 2023, and increase the payment limit by $204,727 to a new payment limit of $1,167,439, for professional engineering services for the Marsh Creek Road Bridges (#28C-0143 & -0145) Replacement Project, Clayton area. (County Project No.: 0662-6R4083, Federal Project No.: BRLS 5928(125)) (District III)

FISCAL IMPACT:

This project, including work performed under this amendment, is funded by 88.53% Federal Highway Bridge Program Funds and 11.47% Local Road Funds.

BACKGROUND:

The Public Works Director, or designee, executed a Consulting Services Agreement, dated October 6, 2015, with CH2M Hill, Inc., for professional engineering services for the Marsh Creek Road Bridges (#28C-0143 and 28C-0145) Replacement Project.

BACKGROUND: (CONT'D)

This Project consists of preparing plans, specifications, and estimates, including geotechnical and hydraulic studies, construction support, project management and coordination, and environmental and right of way support for the replacement of the Marsh Creek Road Bridges (#28C-0143 and 28C-0145) over Marsh Creek in eastern Contra Costa County.

Amendment #1, which was approved by the Board of Supervisors on September 11, 2018, replaced the termination condition of “acceptance of the completed bridges by the Contra Costa County Board of Supervisors” with June 30, 2022. The payment limit was increased by $97,935, from $864,777 to $962,712.

The original scope of the contract and Amendment #1 did not include Stormwater C.3 analysis and design, additional plan sheet preparation, Contra Costa Water District (CCWD) waterline design, additional environmental permitting calculations, and support in preparing Caltrans Local Assistance paperwork. In order to meet project needs, additional support with Stormwater C.3 requirements, plan sheet needs, CCWD waterline design requirements, permitting needs, and outside agency coordination, is necessary.

Amendment No. 2 will amend the payment limits and completion date for this additional effort.

CONSEQUENCE OF NEGATIVE ACTION:

Without approval from the Board of Supervisors, a delay in construction of the Project will occur, which will ultimately delay the completion of the Project, result in substantial additional project costs and jeopardize the funding. Additionally, the consultant would not be compensated for services needed to complete the project. Executing this contract amendment will facilitate the process of design and construction for the project.