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California Department of Transportation
09/10/2026 | Press release | Distributed by Public on 09/10/2026 15:08
Eastbound State Route 20 Closure Continues in Nevada County
Eastbound State Route 20 Closure Continues in Nevada County
Published: Sep 10, 2026
District: District 3 - Marysville
Sergio Aceves, District 3 Director
Contact: Jeremy Linder (530) 701-5209
PLACER/NEVADA COUNTIES - Caltrans is alerting motorists to an extension of the eastbound State Route 20 (SR 20) closure between the Omega Scenic Overlook and the Interstate 80 (I-80) junction as part of the $112 million Yuba Pass Separation Overhead Bridge Project.
Eastbound SR 20 is now scheduled to be closed through 6 a.m. Sunday, September 20. The eastbound I-80 off-ramp to SR 20 will also be closed during this time. Westbound SR 20 will remain open for travel between the I-80 junction and Nevada City.
The closure is necessary to continue falsework installation and grading work for the section of the new bridge that crosses directly over SR 20. The schedule is subject to change or be delayed due to weather, availability of materials or other unexpected events.
The following detours are available for motorists:
- Drivers in the Nevada City/Grass Valley area looking to connect to I-80 can detour southbound on State Route 49 (SR 49) to connect with I-80 in Auburn or southbound on State Route 174 to connect with I-80 in Colfax. Large trucks are directed to only use SR 49.
- Eastbound I-80 motorists looking to connect to SR 20 can detour to Eagle Lakes Road and head back on westbound I-80 to the westbound SR 20 off-ramp.
The extended lane closures will help minimize the duration of the work and improve worker safety. Additional closures are scheduled through October.
Flatiron Dragados of Concord is the prime contractor. The project will replace the existing bridge and improve freight efficiency along I-80 by increasing the load-carrying capacity for extra-legal load trucks. The project also includes construction of median barriers, upgraded drainage and the installation of roadway weather information systems. Work is expected to be completed by the end of 2027.
Caltrans District 3 is responsible for maintaining and operating 4,385 lane miles in 11 Sacramento Valley and Northern Sierra counties. Caltrans reminds motorists to "Be Work Zone Alert" and slow in construction zones for the safety of travelers and crews performing these improvements.
The department issues construction updates on X @CaltransDist3 and on Facebook at CaltransDistrict3. For real-time traffic, click on Caltrans' QuickMap or download the QuickMap app from the App Store or Google Play.
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California Department of Transportation published this content on September 10, 2026, and is solely responsible for the information contained herein. Distributed via Public Technologies (PUBT), unedited and unaltered, on September 10, 2026 at 21:08 UTC. If you believe the information included in the content is inaccurate or outdated and requires editing or removal, please contact us at [email protected]