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You can also call 1-800-427-7623 for current highway conditions.

This highway information is the latest reported as of Thursday, August 21st, 2025 at 07:12 AM.

SR 4

[IN THE CENTRAL CALIFORNIA AREA]
The westbound connector to eastbound I 80 /in Hercules/ (Contra Costa Co) is closed from 2130 hrs on 8/19/25 to 0500 hrs on 8/20/25 - Due to maintenance - Motorists are advised to use an alternate route

1-way controlled traffic at various locations from 2.1 mi west of the Stanislaus/Calaveras Co Line /at Dunton Rd/ to the Stanislaus/Calaveras Co Line - Due to construction