State Route 49 Yuba River Washouts

PROJECT DESCRIPTION:

Repair State Route 49 washouts at various locations along the Yuba River by installing retaining structures and rock slope prevention concrete embankment features.

 

PURPOSE AND NEED:

The purpose of the proposed project is to permanently repair the damaged river

embankment at four locations along the Yuba River. Temporary repairs were made to the river embankment by an emergency force account in August 2017. The sidehill viaducts will permanently restore the Yuba River washouts caused by erosion and will prevent the erosion adjacent to the Yuba River from impacting SR 49 for the foreseeable future. Currently, SR 49 is the main State highway for many neighboring cities in the Sierra and Yuba County, including Downieville and Sierraville. Construction of the sidehill viaducts will ensure that the communities surrounding the project location will have access to the state route during a significant storm event.

 

COST ESTIMATE:

Support Cost: $4.8 Million

Capital Cost: $7.5 Million

Total Project Cost: $12.3 million

 

SCHEDULE:

Project Approval & Environmental Document: June 2019

Design Completed: January 2020

Advertise Project: March 2020

Begin Construction: June 2020

Complete Construction: December 2021

 

PROJECT NEWS:

04.19.21 State Route 49 Viaduct Project Resuming in Sierra County

 

PROJECT CONTACTS:

Project Manager, Johny Tan, (530) 741-5120; Johny.tan@dot.ca.gov

Public Information Officer, Raquel Borrayo, (530) 701-5209; Raquel.borrayo@dot.ca.gov