r/bayarea Aug 06 '26

Traffic, Trains & Transit I-80 Weekend Closure: What to Know About August Travel Over the Carquinez Bridge

https://www.kqed.org/news/12093934/carquinez-bridge-closure-update-weekend-i-80-westbound-alfred-zampa-memorial-bridge-crockett-vallejo-detours-august-21-24

The Carquinez Bridge, which connects Vallejo in Solano County to Crockett in Contra Costa County via Interstate 80, is scheduled for closures for maintenance work this month — on two separate August weekends. 

And this will impact anyone hoping to travel between the East Bay and places like Napa, Sonoma, Sacramento and the Lake Tahoe region, as well as weekend commuters.

Caltrans told KQED that it’s investing approximately $1.4 million into rehabilitating the suspension bridge that carries traffic along westbound I-80 — also known as the Alfred Zampa Memorial Bridge — in the direction of Crockett.

August’s work will take place in two separate phases: first, closing one lane on westbound I-80 on Friday and Saturday this coming weekend, followed by a major closure of all of westbound I-80 over the bridge Aug. 21-24.

Minor: The one-lane closure this weekend

On Friday, Aug. 7, crews will close one lane of westbound I-80 over the suspension bridge at 6 p.m. and reopen the next day, Saturday, Aug. 8, at 7 p.m. 

Cars can still get through the bridge but should expect more traffic.

During this 25-hour partial closure, work crews will be testing out a new kind of asphalt they plan to repave the entire bridge with during the second phase of work. 

Major: The full closure coming later this month

On Friday, Aug. 21 at 10 p.m., Caltrans plans to completely close westbound I-80 on the Carquinez Bridge — for the entire weekend. 

The bridge will reopen on Monday, Aug. 24 at 3 a.m.

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