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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, October 15th, 2026 at 10:58 PM.

SR 4

[IN THE CENTRAL CALIFORNIA AREA]
Is closed from Marsh Creek Rd to Byron Highway /in Brentwood/ (Contra Costa Co) from 1900 hrs each night to 0800 hrs each morning Monday thru Friday thru 10/16/26 - Due to construction - Motorists are advised to use an alternate route

1-way controlled traffic at various locations from the Jct of SR 99 /in Stockton/ (San Joaquin Co) to 1.2 mi west of the Stanislaus/Calaveras Co Line from 1900 hrs each night to 0700 hrs each moring Monday thru Friday thru 10/16/26 - Due to construction

1-way controlled traffic 0.8 mi east of Murphy's /at Apple Blossom Rd/ (Calaveras Co) from 0730 hrs to 1530 hrs on 10/12/26 - Due to tree work

Eastbound traffic is reduced to 1 lane at Mc Ewen Rd /in Martinez/ (Contra Costa Co) - Due to a traffic collision