In The Central California Area
1-way controlled traffic 7.8 mi south of the Jct of SR 128 (Napa Co) 24 hrs a day 7 days a week - Due to slipouts
Highway SR-121 Traffic & Road Conditions in California
Real-time Traffic Cameras
Traffic Cameras CHP Traffic Incidents, Accidents & Alerts on SR-121
No reported CHP Traffic incidents for this route.
CalTrans Road Conditions SR-121
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SR-121 Major Junctions (3)
CalTrans Message Signs for SR-121 (0) - See All
Real-time highway message signs with travel times, travel, wind, fog and chain controls alerts and accident conditions.
CalTrans Lane & Road Closures on Highway SR-121 How does freeway lane numbering work?
In Napa Lane #1 will be closed for drainage work along North / southbound Highway 121 at Wooden Valley Rd from May 6 at 8:01AM to May 6 at 5:01PM.
From: Wooden Valley Rd to Wooden Valley Rd in Napa
In Sonoma Lane #1 will be closed overnight for roadway excavation along North / southbound Highway 121 at Bonneau Rd from May 6 at 9:01PM to May 7 at 4:59AM.
From: Bonneau Rd to Sonoma Green Acres/Scarafoni Rd in Sonoma
In Napa Lane #1 will be closed for drainage work along North / southbound Highway 121 at Wooden Valley Rd from May 7 at 8:01AM to May 7 at 5:01PM.
From: Wooden Valley Rd to Wooden Valley Rd in Napa
In Sonoma Lane #1 will be closed overnight for roadway excavation along North / southbound Highway 121 at Bonneau Rd from May 7 at 9:01PM to May 8 at 4:59AM.
From: Bonneau Rd to Sonoma Green Acres/Scarafoni Rd in Sonoma
In Napa Lane #1 will be closed for drainage work along North / southbound Highway 121 at Wooden Valley Rd from May 8 at 8:01AM to May 8 at 5:01PM.
From: Wooden Valley Rd to Wooden Valley Rd in Napa
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