Traffic & Transit
I-680 Lanes To Face Regular Nighttime Closures
Caltrans said that lanes of a 9-mile stretch of both northbound and southbound will close nightly, on no particular schedule.
DUBLIN, CA — A nine-mile portion of both the north and southbound lanes of I-680 will close nightly on an intermittent basis due to construction, Caltrans said.
Both lanes of I-680 between Alcosta Boulevard in Dublin/San Ramon and State Route 84 in Sunol are subject to closures at unspecified times between 7 p.m. and 6 a.m. at any night of the week.
The same stretch was closed on holiday weekends in 2023 and 2024 for construction. Currently, Caltrans says it is working to rehabilitate existing roadway on the northbound lane, and rehabilitate existing roadway and add a new express lane on the southbound lane.
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Caltrans also announced that several lanes will be closed on eastbound and westbound I-580 from the I-680/580 over crossing to the I-580/SR 238 over crossing in Castro Valley.
Several lanes will be closed on the eastbound side from 9 p.m. to 5 a.m., and the westbound side from 8 p.m. to 4 a.m. The closures will take place Monday through Friday nights. Caltrans did not provide an approximate end date.
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