Blasting Work Extends Traffic Controls on State Route 20


California State Route 20

District: District 3 - Marysville,
Amarjeet S. Benipal, District Director
Contact: Jeremy Linder
Phone: (530) 701-5209


Nevada County – Caltrans is alerting State Route 20 (SR-20) motorists in Nevada County to additional travel delays for blasting work on the Omega Curves safety improvement project.

Construction crews plan to hold traffic in the White Cloud area for about 30 minutes during blasting operations scheduled between 8 a.m. and 10 a.m. Friday, July 21. Motorists are reminded normal one-way traffic controls remain in effect during regular construction activity from 6 a.m. to 4:30 p.m. Monday through Friday.

At the same time, one-way traffic controls remain in place around the clock in the Lowell Hill construction area through mid-August. Additional full closures will take place in mid-September.

Motorists should allow up to 40 minutes of additional travel time when driving through the Lowell Hill and White Cloud construction zones located along a 14-mile stretch of highway between Conservation Road and Lowell Hill. Alternate routes are advised to avoid significant delays.

The White Cloud blasting work is required to remove hard rock where the new highway alignment is being constructed. Construction crews are also installing drainage and performing earth work to widen sections of the roadway.




The work is part of the $62.5 million Omega Curves project, which aims to improve safety and reduce collisions on SR-20 by realigning curves on two non-contiguous segments near White Cloud and Lowell Hill, widening shoulders, improving the highway’s sight distance, and adding designated left-turn lanes near Conservation Road and Washington Road. In addition, three turnouts will be added where slow-moving vehicles can allow motorists to safely pass, while also serving as traffic-enforcement locations for the California Highway Patrol.

Granite Construction, Inc. of Sacramento is the contractor for the Omega Curves safety project, which is expected to be completed this fall. For project updates, please visit OmegaCurves20.

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 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 from the App Store or Google Play.

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