I-680 Overnight Closures Planned Through April

FREMONT, CA — Caltrans plans to close northbound Interstate Highway 680 overnight starting Monday night through April, the agency announced. The work depends on the weather.

Highway 680 will be closed from the Sunol Boulevard exit all the way to the I-680/state Highway 84 junction in Contra Costa County.

All lanes of northbound I-680 will be closed from 10 p.m. to 5 a.m. Monday through Friday.

Caltrans said the work is part of a "major" improvement project that will repave I-680 and replace entire sections of the roadway. The work will take place on I-680 between Koopman Road in Sunol and Acosta Boulevard in San Ramon.

California Highway Patrol officers will be on hand to guide motorists, along with advisory signs.

Detours

• Regional detours will be activated to advise motorists coming from the South Bay to take I-880/SR-238/I-580 instead of I-680.
• For closures between the Koopman Road and Sunol Boulevard interchanges:
  • 680 North Traffic: Exit I-680 at Calaveras, take Paloma Way, take Pleasanton Sunol Road and re-enter northbound I-680 at Sunol Boulevard.
  • 580 East Traffic: Take eastbound SR-84 to I-580.
• For closures between Sunol Boulevard and Bernal Avenue:
  • 680 North Traffic: Exit I-680 at Sunol Boulevard, take Bernal Avenue and re-enter the freeway from Bernal Avenue
  • 580 East Traffic: Take eastbound SR-84 to I-580.

More road closures are planned all the way through Labor Day. Caltrans plans full 72 hour closures on the following holidays:

1. Martin Luther King holiday (mid-January 2023)
2. President’s Day (mid-February 2023)
3. Memorial Day (late May 2023)
4. Labor Day – (September 2023)

Caltrans will provide additional information when it becomes available.

Bay City News contributed to this report