CAL-AMA-49 Mokelumne River Bridge Upgrade Project


Description: The California Department of Transportation (Caltrans) proposes to upgrade the Mokelumne River Bridge (Bridge Number 26-0012) on State Route 49 in Amador and Calaveras counties by replacing the non-standard bridge rails with new rails that meet current standards and widening shoulders to 4 feet on either side of the traveled way to enhance the mobility of pedestrians and bicyclists. Purpose: The purpose of this project is to upgrade the bridge rails to meet current crash safety standards and to widen the bridge to enhance the mobility of pedestrian and bicycle traffic.


Need: The Structure Replacement and Improvement Needs Report (STRAIN), prepared by the Office of Structures Maintenance and Investigations, has identified the need to upgrade the nonstandard concrete baluster bridge rails. Additionally, the existing shoulder width on the bridge does not meet the needs of bicycle and pedestrian traffic.


State: State Highway Operation and Protection Program Estimated Total Project Cost (including support costs): $10.1 million


Complete Final Environmental Document: 5/18/2020 (Actual)
Complete Project Approval & Environmental Document: July 2020 (Target)
Complete Right-of-Way: April 2022 (Target)
Complete Design: May 2022 (Target)
Advertise Project: September 2022 (Target)
Begin Construction: December 2022 (Target)
Complete Construction: March 2024 (Target)



To obtain an electronic copy of the Project Report, please contact Sinarath Pheng, Project Manager, at  


Public Information Office: Caltrans District 10
Phone: 209/948-7977



Final Environmental Document - Initial Study with Negative Declaration - June 2020 (PDF) 5,472 KB