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C. 6

To:	Board of Supervisors
From:	Brian M. Balbas, Public Works Director/Chief Engineer
Date:	December 10, 2019

Contra

Costa

County

Subject:

APPROVE the Drainage Area 29G (DA29G), Line A-Storm Drain Replacement Project and take related actions under CEQA.

APPROVE	OTHER
RECOMMENDATION OF CNTY ADMINISTRATOR	RECOMMENDATION OF BOARD COMMITTEE

Action of Board On: 12/10/2019

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:	Ave Brown, 925.313.2311
cc:	Trina Torres-Environmental Services

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: December 10, 2019
David Twa,

BY:	, Deputy

RECOMMENDATION(S):

APPROVE the Drainage Area 29G (DA29G), Line A-Storm Drain Replacement Project and take related actions under the California Environmental Quality Act, and AUTHORIZE the Chief Engineer, or designee, to advertise the Project, located in Antioch area. [County Project No.0330-6W9C14, DCD-CP#19-30] (District V).

DETERMINE the Project is a California Environmental Quality Act (CEQA), Class 2(c) Categorical Exemption, pursuant to Article 19, Section 15302 of the CEQA Guidelines, and

RECOMMENDATION(S): (CONT'D)

DIRECT the Director of Department of Conservation and Development to file a Notice of Exemption with the County Clerk, and

AUTHORIZE the Chief Engineer, or designee, to arrange for payment of a $25 fee to the Department of Conservation and Development for processing, and a $50 fee to the County Clerk for filing the Notice of Exemption.

FISCAL IMPACT:

Estimated Project cost: $212,000. (100% Flood Control Funds)

BACKGROUND:

DA29G, Line A is located on a private road (Maritime Way) within Contra Costa County Flood Control and Water Conservation District storm drain easements, near Wilbur Avenue, in the unincorporated portion of Antioch. In previous years, sections of damaged pipe have been replaced, as needed. Currently, the roadway is compromised due to two (2) sections of underlying 48-inch plastic pipe that is failing. Both sections of roadway are covered by trench plates to allow access to facilities at the end of the road.

The purpose of this Project is to replace two (2) damaged sections of plastic pipe and restore roadway integrity. The first pipe to be replaced is approximately 1,200 feet north of Wilbur Avenue. The second pipe to be replaced is behind the Sportsman Yacht Club gate, approximately 500 feet north of the first section of pipe. The Project also includes roadway excavation and replacement, dewatering and trench shoring and protection; adjusting utilities; installing construction area signs; providing a staging area; and offsite disposal of all removed material. Appropriate Best Management Practices will be implemented during construction activities.

CONSEQUENCE OF NEGATIVE ACTION:

Delay in approving the project may result in a delay of design, construction, and may jeopardize funding.