Major Roadwork Starting on State Highway 20 in Colusa County


California State Route 20

District:  District 3 - Marysville
Contact:  Gilbert Mohtes-Chan
Phone:  (530) 682-6145



Colusa County — Caltrans is alerting motorists that roadwork activity has started on a 1.7-mile stretch of State Highway 20 east of the Colusa County Airport in Colusa.

Crews today and Friday will be clearing vegetation along the highway between Niagara Avenue and Steidlmayer Road as part of a $9.1 million project that will widen shoulders to 8 feet, repave the roadway and improve drainage systems.

During early May, crews are scheduled to place temporary concrete barriers, or K-rail, on one side of the roadway, which will reduce the width of the eastbound and westbound traffic lanes to 11-feet wide to accommodate major construction activity.

Motorists may expect construction activity during the daytime and nighttime hours Monday through Saturday. Although most of the roadwork will be performed behind the barrier, motorists may expect intermittent traffic-interfering work.

Teichert Construction of Sacramento is the prime contractor with project completion expected by early fall. The schedule is subject to change due to weather or unexpected events.

During construction the speed limit in the project work zone will be reduced to 45 mph. Caltrans reminds motorists to Be Work Zone Alert and slow down.

Caltrans District 3 is responsible for maintaining and operating 4,385 highway lane miles in 11 Sacramento Valley and Northern Sierra counties. For project updates, follow Caltrans District 3 on Twitter @CaltransDist3 or on Facebook at CaltransDistrict3. For current highway road conditions, visit or download the free QuickMap app on the App Store or Google Play.


Map of roadwork on State Highway 20 in Colusa County