Three Mile Slough Bridge Scheduled for One-way Traffic Control (08/03/2020)


State Route 160 Sign

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



Sacramento County — The California Department of Transportation (Caltrans) is scheduled to perform partial closures on the Three Mile Slough Bridge (on State Route 160) to complete prep work for additional parts replacement. The bridge remains safe for travel.

Crews will close the median and perform one-way traffic control from 8:00 a.m. to 3:00 p.m. Sunday, August 2, from 9:00 a.m. to 3:00 p.m. Monday, August 3 through Friday, August 7, and from 6:00 a.m. to 8:00 p.m. Saturday, August 8.

A contractor is scheduled to install reinforcement members on the lift span. This is necessary for the replacement of the sheave bearings and to machine the trunnion in both towers.

Caltrans urges motorists to plan accordingly and to expect delays.

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.

Suggests alternate routes:

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

•   For other detours, motorists may consider using State Routes 12, 4, 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 511SFBAY 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.

For real-time traffic, click on Caltrans’ QuickMap or download the QuickMap app on iTunes 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.