Agenda

Return

C. 2

To:	Board of Supervisors
From:	Brian M. Balbas, Public Works Director/Chief Engineer
Date:	March 26, 2019

Contra

Costa

County

Subject:

APPROVE the 2019 Microsurface Seal Project and take related actions under CEQA.

APPROVE	OTHER
RECOMMENDATION OF CNTY ADMINISTRATOR	RECOMMENDATION OF BOARD COMMITTEE

Action of Board On: 03/26/2019

APPROVED AS RECOMMENDED

OTHER

Clerks Notes:

VOTE OF SUPERVISORS

AYE:

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

ABSENT:

Diane Burgis, District III Supervisor

Contact:	Laura Cremin (925) 313-2015
cc:	Ave' Brown Laura Cremin

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: March 26, 2019
David Twa,

BY:	, Deputy

RECOMMENDATION(S):

APPROVE the 2019 Microsurface Seal Project (Project) and AUTHORIZE the Public Works Director, or designee, to advertise the Project, Lafayette and Pleasant Hill areas. [County Project No. 0672-6U2183, DCD-CP# 19-03] (Districts II, IV).


DETERMINE the Project is a California Environmental Quality Act (CEQA), Class 1(c) Categorical Exemption, pursuant to Article 19, Section 15301 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 Public Works Director, 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: $423,253. 100% Local Roads Funds.

BACKGROUND:

The purpose of this Project is to conduct preventative maintenance on selected roadways in unincorporated Contra Costa County.

The Project consists of applying a quick setting micro-surface pavement treatment to selected roadways to extend pavement life by weatherproofing and delaying oxidation, restoring surface texture, providing a skid-resistant wearing surface, and correcting minor surface profile irregularities.

The micro-surface treatment is an advanced type of slurry surfacing that has special emulsifiers for fast setting and high stiffness. The slurry is a mixture of polymer modified asphalt emulsion, mineral aggregate, mineral filler, water, and other additives, properly proportioned, mixed, and spread on a paved surface. It creates a hard wearing surface for pavement preservation and rehabilitation.

Preparation of the roadway (prior to applying the surface seal) includes but is not limited to removal of pavement striping and markings, weed removal, cleaning and sweeping roadway surfaces, applying surface treatments on the selected roadways, thermoplastic striping, and site cleanup. The Project may include crack sealing, pavement grinding, and pavement and base failure repair.

CONSEQUENCE OF NEGATIVE ACTION:

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