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130-day culvert project begins May 16 on Hwy 70 in the canyon

Caltrans alerts motorists that crews are scheduled to begin work on the Plumas  70 Drainage project starting Monday, May 16. This Plumas County drainage rehabilitation project will occur at various locations along State Route 70 from just west of Grizzly Creek to 2.2 miles west of Route 89.

Several existing culverts along the highway need to be repaired or replaced due to age, and some earth work will be required to ensure proper drainage. Once finished, Caltrans said this project will significantly improve drainage along SR-70 in Plumas County, which will prevent expensive roadway damage caused by culvert failures. Rock slope protection is also planned in some areas as part of this project.

Construction is estimated to last 130 working days, all of which will require one-way reversing traffic control with flaggers and a speed reduction. Delays of about 10 minutes can be expected. Lane closures are expected, but due to the low traffic volumes on this road, no significant impacts are expected. 24-hr traffic control may be required during times when traffic is on an unpaved surface.

Construction projects are subject to changes without prior notice. Please follow Caltrans District 2 on Facebook and Twitter to stay up to date on this and other highway projects. Project information can also be found on the District 2 webpage. You can also call (530) 225-3426 during working hours or send an email to [email protected]. Updated highway conditions for California can be found on QuickMap and on One-Stop-Shop for the Western U.S.

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