Road Information

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This highway information is the latest reported as of Monday, September 7th, 2026 at 03:30 AM.

US 101

[IN THE SOUTHERN CALIFORNIA AREA]
No traffic restrictions are reported for this area.

[IN THE CENTRAL CALIFORNIA AREA]
The northbound connector to northbound I 280 /in San Francisco/ (San Francisco Co) is closed from 2300 hrs each nighr to 0600 hrs each morning Monday thru Friday thru 9/9/26 - Due to construction - Motorists are advised to use an alternate route

There is a dense fog advisory in effect from Sierra Ave the 0.3 mi south of the Jct of SR 116 /in Cotati/ (Sonoma Co) - Motorists are advised to drive with caution

There is a dense fog advisory in effect at the Golden Gate Bridge (San Francisco,Marin Co) - Motorists are advised to drive with caution

[IN THE NORTHERN CALIFORNIA AREA]
1-way controlled traffic .25 mi north of Richardson Grove State Park (Humboldt Co) 24 hrs a day 7 days a week thru 1700 hrs on 10/30/26 - Due to construction

1-way controlled traffic at various locations from 12.3 mi south of the Humboldt/Del Norte Co Line /at Prairie Creek Fish Hatchery/ to 11.2 mi south of the Humboldt/Del Norte Co line 24 hrs a day 7 days a week thru 1700 hrs on 10/2/26 - Due to construction

1-way controlled traffic at various locations from 10.2 mi south to 9.6 mi south of Crescent City (Del Norte Co) 24 hours a day 7 days a week thru 1800 hrs on 9/18/26 - Due to construction