Public Jobs

Work to be done generally consists of replacing a damaged Corrugated Metal Pipe (CMP) with a Reinforced Concrete Pipe (RCP) and repairing the CMP using invert paving. The pipe invert will be filled with concrete baffles for fish passage. Work will also include temporary water diversion and dewatering, reconstructing of the roadway and roadside ditch, replacing roadway striping, and reconstructing and stabilizing the embankment using rock slope protection.

The work to be done generally consists of removal of asphalt concrete surface paving, base material compaction, HMA overlay, ADA ramp and crosswalk installation, and parking lot restriping.

At the Alhambra Valley Road at Ferndale site, work includes construction of a soldier pile retaining wall, drainage improvements, guardrail and vegetation control, and reconstruction of the roadway. At the Alhambra Valley Road West of Castro Ranch Road site, work includes remedial grading and reconstruction of the embankment, construction of guardrail and vegetation control, and reconstruction of the roadway. At Bear Creek Road, there are two sites, 3A and 3B. At site 3A, work includes construction of a soldier pile retaining wall, drainage improvements, guardrail and vegetation control, and reconstruction of the roadway. At site 3B, work includes remedial grading and reconstruction of the embankment, construction of guardrail and vegetation control, and reconstruction of the roadway.

The Capital Projects Management Division, Public Works Department, is requesting a Statement of Qualifications (“SOQs”) from firms with expertise and experience in professional master planning studies of county facilities. Experience in master planning, programming, space planning, and architectural design is a plus. The prime consultant responding to this RFQ is required to be a qualified architectural/engineering firms with experience in planning, building and renovating public facilities.

The work to be done generally consists of repair and restoration of a 250 foot stretch of northbound Happy Valley Road, approximately 0.2 mile southeast of the intersection of Happy Valley Road and Bear Creek Road. The work will reconstruct the northbound lane and restore two-way traffic to this portion of Happy Valley Road. The work includes installing an approximately 68 foot long soldier pile retaining wall with necessary safety railing and barrier on the east side of the roadway to support the reconstructed roadway and repairing settled roadway affected by the eroded embankment with structural backfill and asphalt surface. Drainage improvements will also be installed.

The County is inviting Proposals from Bidders for the design and construction of the Administration Building and Jail Demolition and Redevelopment Project (ADR). The scope and needs of the Project include design and construction services as defined by Document 011110 (Summary of Work) and Document 011114 (Summary of Work - Design Services and Deliverables), as well as the Criteria Documents which set forth more completely the Project information necessary to describe the County’s Project requirements.

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.