Caltrans is scheduled to close eastbound and westbound Interstate 80 (I-80) on four different summer weekends between mid-July 2023 and early September 2023. During the 56-hour weekend and 104-hour holiday full highway closures, Caltrans will perform major pavement repair work on eastbound and westbound I-80 in Contra Costa County. One traffic direction on I-80 will be worked on at a time. Detours will be in effect. All work is weather dependent.
You can also learn more about the CC I-80 Pave Project on our Caltrans Bay Area webpage.
Project Webpage: http://www.cc80pave.com
If you have a question or want to share a concern about the project, please call the CC I-80 Pave Project Hotline at (510) 286-0319.
The hotline has been set up for the traveling public and residents living in Contra Costa and Solano Counties to share any questions or concerns and learn the most up-to-date information about the project.
EASTBOUND I-80 FULL HIGHWAY CLOSURES AT SR-4 WEEKENDS OF JULY 21, AUGUST 4, AND AUGUST 18: 
Three-weekend closures on EB I-80 are tentatively scheduled on the weekends of July 21, August 4, and August 18. EB I-80 will be closed, and traffic will be detoured beginning at the EB I-80/SR-4 interchange in Hercules. Closures will start Fridays after 9 P.M. and conclude on the following Mondays no later than 5 A.M.
LABOR DAY WEEKEND WESTBOUND I-80 FULL HIGHWAY CLOSURES AT I-780 STARTING THURSDAY, AUGUST 31 UNTIL SEPTEMBER 5, 2023:
A 104-hour full highway closure of westbound I-80 is scheduled on Labor Day weekend, starting Thursday, August 31 at 9 P.M. and concluding no later than 5 A.M. on Tuesday, September 5, 2023. WB I-80 will be closed, and traffic will be detoured beginning at the WB I-80/I-780 interchange in Vallejo.
EB I-80 DETOUR:
Motorists tra
veling eastbound on I-80 will need to exit onto eastbound SR-4 in Hercules and continue on EB SR-4 to NB I-680. Motorists can use NB I-680 to reach I-80 in Fairfield or use WB I-780 to access the Benicia and Vallejo areas. Cummings Skyway between SR-4 and I-80 will also be open for motorists heading to the Crockett area.
WB I-80 DETOUR:
Motorists traveling westbound on I-80 at I-780 (Curtola Pkwy) will need to exit onto eastbound I-780 in Vallejo and continue EB I-780 to SB I-680. Motorists can use SB I-680 to reach WB SR-4, WB SR-24 or WB I-580 to access central and south Bay Area destinations.
