Public Jobs

The work to be done generally consists of installing safety improvements along a 3.1-mile segment of Kirker Pass Road between the City of Concord to the City of Pittsburg. Improvements include installation of Midwest guardrail system including standard terminal ends, installing reflective treatments to the existing median barrier, removing and placing hot mix asphalt dike, painting existing dike with reflective paint, placing roadside delineators along the road shoulder, and installation of street lighting at the two Hess Road intersections.

The work to be done generally consists of street improvements along FredJackson Way between Brookside Drive and Grove Avenue including constructing widened sidewalks, bulbouts and storm drain modifications and installation of street trees and irrigation. Project will also includepavement grinding, installation of SAMI (Stress Absorbing Membrane Interlayer), HMA widening andoverlay, and construction of HMA pedestrian path.

The work to be done generally consists of striping bicycle lanes and place shared roadway markings between Treat Boulevard and Buskirk Avenue. This will require removal of existing travel lane striping and placement of new striping. Additionally, a slurry seal treatment will be applied between Treat Boulevard and Buskirk Avenue

The work to be done generally consists of applying an asphalt rubber chip seal covered with a type II slurry seal to various roads in the unincorporated areas of North Richmond, Castle Hill, Alamo, Clyde and Concord areas. Select roads El Sobrante and in the North Richmond and Clyde area will require a Mill and Overlay. Work will also include surface preparation including, weed spray, edge grinding. Pavement failure repair work will be required in the North Richmond, Castle Hill, and Alamo areas, striping removal, adjusting and setting survey monuments to finish grade, and placement of thermoplastic striping and pavement markings. Crack sealing will be completed by the County Maintenance Division prior to the start of this contract.

The work to be done generally consists of removing existing curb and sidewalk and construction of new curb, gutter, and sidewalk to construct over 200 ADA compliant curb ramps at various locations within the Alamo, Castle Hill, North Richmond, Clyde and unincorporated North Concord areas.

The work to be completed at Buchanan Field Airport generally consists of removing and replacing the existing airport perimeter fencing and gates, installation of new automated vehicle gates with access control, installation of pedestrian gates with access control, installation of new video surveillance equipment and security lighting improvements.

Work generally consists of replacing the existing 10 span concrete slab bridge with a 5 span CIP/PS slab bridge. All supports utilize CIDH concrete piles. The replacement is to be done utilizing staged construction. Approach roadway, rock slope protection, temporary water diversion, and utility relocations are among other work items.

An on-call contract for various road, flood control, airport and facilities maintenance work to provide fencing services including, but not limited to, installation, repair, replacement, or removal of fences and gates.

The work to be done generally consists of providing sweeping services with sweepers and operators to support road maintenance repairs at different County locations including, but not limited to, working in conjunction with operations and materials such as grinding operations, paving operations, tree trimming, chip aggregate clearing, roadside debris cleaning, median cleaning, and bike lane cleaning.

The project includes construction of an Aviation/ARFF/Airport Administration Building along with associated site improvements at Buchanan Field Airport, 181 John Glenn Drive, Concord, CA, 94520 (to replace the existing Contra Costa County Airport passenger terminal). The new Aviation/ARFF/Airport Administration Building will be a one-story structure including, but not limited to, two (2) apparatus bays, kitchen, offices, restrooms, training, storage, workrooms, passenger holdroom along with all associated HVAC, plumbing, fire protection, electrical, IT, civil site work, and landscaping. The work shall include providing modular buildings for temporary airport terminal operations, connecting temporary modular to electrical power, demolition of existing buildings and relocating existing main sewer and water lines. The new station will also include an emergency generator and fuel tank. The project will also include provisions for future photovoltaic roof system, car charging stations and has been designed to meet LEED Silver equivalency per the County’s standard for public buildings.