Upper Lake
Westbound
.8 Miles east of MEN-LAK Co Line, near Upper Lake, Westbound, route SR-20StatusR-0
No chain controls are in effect at this time.
R-0. No chain controls are in effect at this time.Chain Controls: SR-20
Current Chain Controls status for SR-20
Last Updated: 7/21/2026, 6:17:55 PM
Showing 51 results
Upper Lake
Westbound
0.2 Miles west of Junction LAK-29, near Upper Lake, Westbound, route SR-20StatusR-0
No chain controls are in effect at this time.
R-0. No chain controls are in effect at this time.Clearlake Oaks
Eastbound
5.5 Miles west of LAK-COL Co Line, near Clearlake Oaks, Eastbound, route SR-20StatusR-0
No chain controls are in effect at this time.
R-0. No chain controls are in effect at this time.Clearlake Oaks
Eastbound
6.48 Miles west of LAK-COL Co Line, near Clearlake Oaks, Eastbound, route SR-20StatusR-0
No chain controls are in effect at this time.
R-0. No chain controls are in effect at this time.Clearlake Oaks
Eastbound
5.4 Miles west of LAK-COL Co Line, near Clearlake Oaks, Eastbound, route SR-20StatusR-0
No chain controls are in effect at this time.
R-0. No chain controls are in effect at this time.Clearlake Oaks
Westbound
4.4 Miles west of LAK-COL Co Line, near Clearlake Oaks, Westbound, route SR-20StatusR-0
No chain controls are in effect at this time.
R-0. No chain controls are in effect at this time.Rumsey
Eastbound
1.4 Miles west of LAK-COL Co Line, near Rumsey, Eastbound, route SR-20StatusR-0
No chain controls are in effect at this time.
R-0. No chain controls are in effect at this time.Rumsey
Eastbound
.6 Miles west of LAK-COL Co Line, near Rumsey, Eastbound, route SR-20StatusR-0
No chain controls are in effect at this time.
R-0. No chain controls are in effect at this time.Rumsey
Westbound
.6 Miles west of LAK-COL Co Line, near Rumsey, Westbound, route SR-20StatusR-0
No chain controls are in effect at this time.
R-0. No chain controls are in effect at this time.Williams
Westbound
At the LAK-COL Co Line, near Williams, Westbound, route SR-20StatusR-0
No chain controls are in effect at this time.
R-0. No chain controls are in effect at this time.Willits
Eastbound
7 Miles west of Willits, near Willits, Eastbound, route SR-20StatusR-0
No chain controls are in effect at this time.
R-0. No chain controls are in effect at this time.Willits
Westbound
4 Miles west of Willits, near Willits, Westbound, route SR-20StatusR-0
No chain controls are in effect at this time.
R-0. No chain controls are in effect at this time.Page 1 of 5
What This Page Shows
This page filters live chain controls data for SR-20 across all California districts that publish this route.
- Current items: 51
- Matching counties: Colusa, Lake, Mendocino, Nevada
- Scope: Route-wide view with location-level filtering
About Chain Controls on SR-20
View Real-time chain controls updates for SR-20 across Colusa, Lake, Mendocino, Nevada counties. Whether you are on a road trip or daily commute, stay informed with data directly from Caltrans instruments on SR-20.
This page filters data specifically for SR-20, passing through Colusa, Lake, Mendocino, Nevada. Monitor Chain Controls, road conditions, highway status to safely plan your journey.