Public Jobs

General work description: The work to be done generally consists of replacing existing guardrails including posts, railing, and end treatments with Caltrans standard Midwest Guardrail System (MGS). Guardrail will have both wood and steel posts. Additional work includes installing concrete anchor blocks and replacing small retaining walls.

General work description: An on-call contract for providing grinding (asphalt concrete cold-planing) services consisting of grinders and operators to support road maintenance repairs at different County locations including, but not limited to, cold-planing asphalt concrete and loading the grindings onto trucks in support of pavement maintenance operations.

General work description: The work to be done generally consists of installing a prefabricated Debris Separating Baffle Box (DSBB) on Willow Pass Road at Alves Lane in the Bay Point area. Work includes temporary water diversion and dewatering, roadway and structure excavation, temporary shoring, installation of DSBB unit and manhole, reconstruction of roadway and slurry seal, and replacing roadway striping.

General work description: The work to be done generally consists of installing a PCC pedestrian path, curb ramps, a rectangular rapid flashing beacon (RRFB) system, striping and pavement marking at the Bixler Road and Regatta Drive intersection in the Discovery Bay area.

This solicitation is for an on-call contract that may be utilized for a number of projects, under which task orders are issued on an as-needed basis, for an established contract period and specified dollar amount. The County will execute up to eight (8) on-call contracts with several consultants for local, state, and federal projects. Task Orders will be issued under competitive mini-Request for Proposals. The County does not guarantee a specific number or dollar amount of projects to be contracted from the listed projects.

PROJECT SUMMARY DESCRIPTION: The proposed new work will comply with the California Building Code, Title 24 requirements, and Contra Costa County Building Design and Construction Guidelines. The project will address accessibility upgrades at West County Detention Facility (WCDF) and provide: • Upgrades to create four (4) accessible cells at each of the four (4) male housing units (Buildings 5, 6, 7 and 8) totaling sixteen (16) accessible cells created campus-wide. • Accessible paths of travel to the specific areas of alteration. The primary accessible path of travel shall include: a primary entrance to the facility, toilet and shower facilities, recreational areas, drinking fountains serving the area, public phones serving the area, and signs.

Contra Costa County (County) is seeking qualified consultants to provide Material Testing (M&T) and Inspection services for County construction projects, County ordinance projects, and encroachment permits.

General work description: The work to be done generally consists of roadway shoulder widening along an 860-foot segment of Walnut Boulevard between Marsh Creek Road and Vasco Road to provide Class II Bike lanes in the unincorporated Brentwood area. Additional improvements include grinding and overlaying the roadway pavement section, and installing a centerline rumble strip, striping, pavement markings, and signage.

General work description: The work to be done generally consists of providing sweeping services with sweepers and operators supporting road maintenance repairs Countywide and may assist with operations and materials such as grinding operations, paving operations, tree trimming, chip aggregate clearing, roadside debris cleaning, median cleaning, and bike lane cleaning.