Caltrans is asking California drivers to Slow for the Cone Zone, Move Over and drive without distraction or impairment in ...

Contra Costa County — Caltrans has updated its schedule for continued fiber-optic cable installation and other construction activities for the Middle Mile Broadband Project along Interstate 580, ...

San Mateo County ― Caltrans has scheduled intermittent ramp and lane closures of U.S. 101 in San Mateo County to allow crews to perform paving, guardrail, drainage, and electrical work. This phase of ...

What you need to know: California is taking steps to protect highways and communities from extreme weather by using updated guidance and tools aimed at furthering adaptation efforts of the state’s ...

State of California SACRAMENTO — Mark your calendars for California’s largest annual volunteer cleanup effort on Saturday, Sept. 19. Communities statewide will come together for the 42nd Annual ...

Caltrans will perform an additional 36-hour full highway closure of State Route 4 (SR-4) from Roberts Road to the San Joaquin ...

Sign up to receive email updates about closures and traffic advisories for the State Route 91 (SR-91) Sign Rehabilitation Project below. If you have already signed up ...

Drivers should note that Lane and ramp closure will continue to take place on SR-4 every Monday through Friday night between the hours of 7:00 p.m. to 8:00 a.m. To search for current District 4 lane ...

Caltrans is committed to improving safety along State Routes 9, 35 and 84 in San Mateo County. As part of ongoing efforts toward a goal of zero traffic fatalities and serious injuries on all ...

Thursday, October 1, 2026, 10 p.m. to 4:30 a.m. Alameda And Contra Costa Counties – Caltrans is slated to close the Caldecott Tunnel Bore 2 on eastbound SR-24 overnight in Alameda and Contra Costa ...

Friday, October 2, 10 p.m. to Monday, October 5, 5 a.m. San Francisco County — Caltrans is planning a 55-hour weekend closure of northbound Interstate 280 (NB 280) as part of the I-280 Rehabilitation ...

Placer/El Dorado Counties - Caltrans is advising motorists of the continuation of several construction projects within the Lake Tahoe Basin next week. Along State Route 28 (SR 28), construction on a ...