Update: Nighttime Closures Scheduled for Three Mile Slough Bridge (07/22/2020)


State Route 160 Sign

District:  District 3 - Marysville
Contact:  Dennis Keaton
Phone:  (530) 741-5474; (916) 825-5252
Contact:  Angela DaPrato
Phone:  (916) 826-3093



Sacramento County — The California Department of Transportation (Caltrans) is scheduled to close northbound and southbound State Route 160 from Three Mile Slough Bridge to Brannon Island State Park for bridge work.

The complete bridge closures are scheduled from 9:00 p.m. to 5:00 a.m. on Friday, July 24 and Saturday, July 25.

A contractor is scheduled to install reinforcement members on the lift span to complete prep work for refurbishing and replacing mechanical parts. The work is necessary for the replacement of the sheave bearings and to machine the trunnion in both towers. The bridge remains safe for travel; however, current truck restrictions are enforced.

California legal trucks having a kingpin-to-rear-axle of more than 30 feet are not recommended on SR-160.

Caltrans urges motorists to plan accordingly and to expect delays.

Suggested alternate routes:

•   For detours involving Sacramento County origins/destinations, motorists may consider using Interstate 5.

•   For other detours, motorists may consider using State Routes 4, 12, and 160 along with segments of Interstates 80 and 680.

Caltrans advices motorists to “Be Work Zone Alert” – someone’s loved one is at work.

Work is scheduled to begin as listed but subject to change due to traffic incidents, weather, availability of equipment and/ or materials, and construction related issues.




For motorists using the State Route 84 Real McCoy and SR-220 Ryer Island Ferries as a bridge detour, additional ferry information is located on our Caltrans Delta Ferries website.

Bay Area motorists can check 511 SF BAY or follow Caltrans District 4 on Twitter. In the Sacramento region, Caltrans District 3 will issue construction updates on Twitter @CaltransDist3 and on Facebook at CaltransDistrict3.

Check out Caltrans’ “Caltrans QuickMap” for current road conditions at or download the free QuickMap app on the App Store or Google Play. Motorists also can call the California Highway Information Network automated phone service at 1-800-427-ROAD (7623).




Continue to Practice Social Distancing and Keep Washing Your Hands.