Public Jobs

General work description: The work to be done generally consists of upgrading traffic signal hardware, installing Advanced Dilemma Detection Zone using video/radar signal detection systems, and improving pedestrian crossing signal hardware at 9 intersections on San Pablo Dam Road between El Portal Drive and Castro Ranch Road in the El Sobrante area, and 2 intersections on Bailey Road between Canal Road and Willow Pass Road in Bay Point.

General work description: A contract to provide trucking services consisting of trucks and operators for the transportation of aggregate from the quarry to various stockpile locations throughout the County, and also for the transportation pf the chip seal aggregate from the stockpile locations to various roads thorughout the County.

The work to be done generally consists of removing approximately 25,000 cubic yards of channel material from designated areas of the Grayson Creek Channel north of Imhoff Drive to south of Chilpancingo Parkway. Work also includes placing a stake and tape boundary between the designated area and environmentally sensitive areas, traffic control, construction of temporary access ramps, portable message signs, hydroseeding, and pre-construction and post-construction surveying.

The work to be done generally consists of of installing 14 curb ramps at selected intersections in Kensington. Ancillary improvements include removal and replacement of existing concrete valley gutter and asphalt concrete, removal and installation of thermoplastic, pavement markings and installation of two (2) solar powered rectangular rapid flashing beacons.

Contra Costa County intends to engage a firm to provide Construction Management and Project Management services for the County's new East County Service Center. For the selected firm, the contract term is anticipated to be five years and the total contract amount is estimated to be $2,900,000 to $3,500,000. The Capital Projects Management Division, Public Works Department, is requesting Statements of Qualifications ("SOQs") from firms with expertise and experience providing construction management and project management services for similar projects.

The work to be done generally consists of pavement dig outs and base failure repairs in the unincorporated Bay Point, Lafayette, Pacheco, Contra Costa Centre areas, and Kirker Pass Road. Work in the Bay Point Area (Site 1) includes mill and overlay with placement of thermoplastic striping and markings on Concord Avenue. Work in the Pacheco Area (Site 2) includes mill and overlay with placement of thermoplastic striping and markings on North Broadway. Work in the Lafayette Area (Site 5) includes mill and overlay of three cul-du-sacs; Jennifer Highlands Ct., Dana Highlands Ct., and Julie Highlands Ct. Work in all areas also includes placement of temporary paint striping, pavement failure repair, and traffic signal loop installation.

General work description: The work to be done generally consists of surface treatment work in the unicorporated Bay Point, Pacheco, Contra Costa Centre areas, and Kirker Pass Road. Work in Bay Point (Site 1) includes appyling either an asphalt rubber chip seal covered with a type II slurry seal or applying a type II slurry seal only on various roads. Work in Pacheco Area (Site 2) includes placing asphalt rubber chip seal covered with a type II slurry seal. Work in the incorporated area of Contra Costa Centre (Site 3) includes applying a micro-surfacing on various roads. Work on Kirker Pass Road (Site 4) includes placing a micro-surfacing on a portion within the unicorporated area of Concord and a portion within the city of Pittsburg limits. Work in all areas also includes pavement surface preperation including: weed spray, crack sealing, edge grinding, and pavement markings including thermoplastic stripe removal; adjusting and setting survey monuments, placement of thermoplastic traffic striping and pavement markings.

The work to be done generally consists of removing 88 existing trash capture basket and crescent type devices, installing 48 connector pipe screens (CPS), and 5 automatic retractable screens (ARS) and installing 2 deflector screens at four sites located in the unincorporated area of El Sobrante, Crockett, Pacheco, and Bay Point. Project will work on 101 inlets in total, and includes cleaning debris from inlets, and preparing a photo inventory of each installation.

The work to be done generally consists of the replacement of two existing bridges with single span concrete PC/PS wide-flange girder bridges and reconstruction and realignment of the approach roads to each bridge, located along Marsh Creek Road, approximately 4 miles apart, in Contra Costa County southeast of Clayton, site 1, and in Contra Costa County southwest of Brentwood, site 2. The reinforced concrete bridges abutments are supported with CIDH concrete piles. Work includes clearing and grubbing activities, tree removal, grading, bridge removal and single stage bridge construction, roadway construction in stages, construction of drainage facilities, storm drainage pipes and outfalls, the relocation of above ground and underground utilities, and pavement delineation.

The work includes repair, alteration, modernization, maintenance, rehabilitation, and demolition work performed on buildings, offices, facilities, structures, infrastructure, or other real property.