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C. 22

To:	Board of Supervisors
From:	Brian M. Balbas, Public Works Director/Chief Engineer
Date:	August 10, 2021

Contra

Costa

County

Subject:

Change Order for design-build contract with Hensel Phelps for plumbing repairs at Martinez Detention Facility (MDF) WH173D

APPROVE	OTHER
RECOMMENDATION OF CNTY ADMINISTRATOR	RECOMMENDATION OF BOARD COMMITTEE

Action of Board On: 08/10/2021

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:

Ramesh Kanzaria 925-957-2480

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 10, 2021
Monica Nino, County Administrator

BY:	, Deputy

RECOMMENDATION(S):

APPROVE and AUTHORIZE the County Administrator, or designee, to execute Change Order No. 6 to the design-build contract with Hensel Phelps Construction in the amount of $3,000,000 for plumbing repairs in Module C, in the Martinez Detention Facility (MDF).

FISCAL IMPACT:

100% Facility Life Cycle Improvement Program Funds.

BACKGROUND:

The Board of Supervisors awarded a design-build contract in the amount of $16.3 million dollars to Hensel Phelps Construction Company to transition and rehabilitate Module M in the MDF to a mental health treatment facility with five (5) treatment rooms and the rest of the module to serve as a return to competency program facility to help detainees transition from mental health treatment back to general population.

BACKGROUND: (CONT'D)

On June 8, 2021, the Board approved a change order increasing the contract amount by $2.5 million for a total contract amount of $18.8 million, for additional plumbing repairs in Module M, and the design-construction of four Americans with Disabilities Act (ADA) compliant cells and one ADA compliant shower facility in Module C, in the Martinez Detention Facility.

During the demolition phase of the project in Module C for the ADA improvements, extensive damage to the Module C plumbing system was discovered by Public Works Facilities maintenance staff. Hensel Phelps Construction is already replacing the Module M plumbing system as part of their current contract. Since Module M and C are stacked with chase plumbing systems linked, there is a unique opportunity to make these Module C deferred-maintenance improvements at this time. There are also efficiencies in completing the work now as Module C is not being used while ADA improvements are constructed and other facilities maintenance projects (new flooring and bunks to be installed by Public Works Facilities Maintenance) are being completed. The estimate to replace the Module C chase plumbing is $3 million.

CONSEQUENCE OF NEGATIVE ACTION:

Not approving the contract change order would delay the construction of needed mental health facilities and potentially increase the cost of making Module C plumbing repairs in the future.