News across Contra Costa County
Contra Costa County Government
Published September 24Robert I. Schroder Pedestrian Bridge Rehabilitation Project
Public Works will begin work on the Robert I. Schroder Pedestrian Bridge Rehabilitation project on Mon. 10/5 - Thur., 12/31/26, from 9:00 pm - 5:00 am, Sun. - Thur. Expect 10 min. delays on Treat Blvd & detours on the Iron Horse Trail during construction.
Contra Costa County Government
Published September 23Springbrook Road Culvert and Sinkhole Repair Project
Public Works will begin construction of the Springbrook Rd Culvert & Sinkhole Repair project on Thurs, 10/1 - Mon. 11/30/26, from 7:00 am - 5:00 pm, Mon.-Fri. Springbrook Rd will be closed to through traffic during working hours. Detours will be in place.
Contra Costa County Government
Published September 15Diablo Road (Danville) Pavement Repair Work
Public Works will perform pavement repair on Diablo Road between Avenida Nueva and Creekledge Court, on Mon., 9/21 - Thur., 9/24/26 from 9 am - 3:30 pm. Traffic control measures will be used. Road users may experience delays of 10-15 minutes.
City of Pinole
Published September 15City Breaks Ground on Road Rehabilitation
The City of Pinole is proud to launch the Pavement Rehabilitation Project — an important milestone in the City’s ongoing […]
Contra Costa County Government
Published September 10Christie Road (Martinez) Road Work
Public Works will perform road work on Christie Road in Martinez starting Wed., 9/16 - Wed., 9/23/26, from 8:00 a.m. - 5:00 p.m. Monday through Friday. Expect up to 15 minute delays through the work area due to traffic control and lane closures.
Contra Costa County Government
Published September 01Deer Valley Road Traffic Safety Improvements Project
Public Works will perform road traffic safety improvements at 4 sites along Deer Valley Rd between Empire Mine Rd & Marsh Creek Rd, starting Tues., 9/8 - Fri., 11/20/26, 7:00 am - 5:00 pm, Mon-Fri. Expect delays through work zones due to traffic control.
Contra Costa County Government
Published August 28Piper Road (Bethel Island) Culvert Repair Work
Public Works will replace a culvert on Piper Rd approx. 500 feet north of the intersection with Gateway Rd, starting Mon., 8/31 - Wed., 9/30/26, from 7:00 am - 5:00 pm, Mon.-Fri. Drivers should expect up to 10 minute delays through the work zone.
Contra Costa County Government
Published August 26Pinole Creek Bank Erosion Repair Work
Public Works will repair erosion along Pinole Creek between Henry Ave and I-80 on Mon., 8/31 - Fri., 10/23/26, from 7:00 am - 5:00 pm, Mon. - Fri. (excl. holidays). Pinole Creek Trail will be closed near the work zone. Drivers can expect minimal delays.
Contra Costa County Government
Published August 25Crockett and Port Costa Road Work
Public Works will repave various residential roads in Crockett and Port Costa starting Mon., 8/31 - Wed., 11/25/26, from 7:00 am - 5:00 pm, Mon.- Fri. Traffic control will be used. Expect delays through the work zone and consider alternate routes.
Contra Costa County Government
Published August 20Countywide Guardrail Upgrades Phase II Project
Public Works will begin construction of the Countywide Guardrail Upgrades Phase II project on Mon., 8/24 - Tues., 11/17/26, from 8:00 am - 4:00 pm, Mon.-Fri., in various locations throughout the county. Expect delays up to 10 minutes through work zones.
Contra Costa County Government
Published August 19Traffic Signal Activation at Mt. Diablo Scenic Blvd & Diablo Rd
Public Works has completed the installation of a new traffic signal at the intersection of Mt. Diablo Scenic Boulevard and Diablo Road/Blackhawk Road. The traffic signal was activated and in full operation on Tuesday, August 11, 2026.
Contra Costa County Government
Published August 19(Updated) Blackhawk Road Pavement Repair Work
Public Works will perform pavement repair work on Blackhawk Rd, between Magee Ranch Rd and east of Oakridge Ln, on Mon., 8/31 - Thur., 9/17/26, from 8:00 a.m. - 5:00 p.m., Mon. - Thur. Expect up to 15 minute delays due to traffic control/lane closures.