A stretch of Interstate 80 in West County will be closed to all traffic for eight hours overnight on June 18-19.

All lanes between San Pablo Avenue and San Pablo Dam Road exits will be closed starting at 11 p.m. Saturday, June 18 until 7 a.m. Sunday, June 19.

The Contra Costa Transportation Authority (CCTA), Caltrans, the Metropolitan Transportation Commission, and the City of San Pablo recently broke ground on an interchange improvement project on Interstate 80 at San Pablo Dam Road.

To facilitate the next phase of work, they must temporarily close this section of the freeway. 

Temporary detours will be in effect during the eight hour overnight period of closure (see the maps for details).

These closures will enable crews to grade (properly adjust and align) falsework recently constructed for a new pedestrian overcrossing at Riverside Avenue. When complete, the new overcrossing will extend across Amador Street, enhancing safety for Riverside Elementary School students and the community.

For more information, click here or call the project hotline at (510) 277-0444. Construction updates will also be posted to Twitter at @i80spdr.