State Route 49 Corridor Improvement Project
Project Description:
In Nevada County, near Grass Valley, along State Route 49 from Allison Ranch Road/La Barr Meadows Road to the McKnight Way interchange. This project proposes to improve safety, operations, and mobility on the highway by constructing a two-way left-turn lane, right-turn lanes, 10-foot shoulders and a northbound slow moving truck lane. The project will also construct a southbound truck-climbing lane, eliminating the southbound lane drop/merge point south of the McKnight Way Interchange, and construct a new entrance to the Nevada County Transit Operation Center, improving access to zero-emission bus charging infrastructure.
Project Map:

Purpose and Need:
The purpose of this project is to enhance accessibility for rural communities in the Grass Valley/Nevada City area along SR 49 and State Route 20 corridors by improving safety, operations, and mobility of vehicle, pedestrian, and cyclist traffic. This project will enhance daily commuting, mobility, freight, transit, essential services and provide a long-term benefit for emergency readiness when the need arises again.
The purpose of this project is to improve safety, traffic operations, and pedestrian and bicyclist mobility through the project limits as well as upgrade shoulder widths to current standards.
Partners:
This project was development in partnership with the Nevada County Transportation Commission (NCTC). For additional information on their efforts please visit the NCTC website.
Cost Estimate:
| Support Cost: | $21.7 million |
| Capital Cost: | $103.2 million |
| Total Project Cost: | $124.9 million |
Schedule:
| Project Approval & Environmental Document: | August 2023 |
| Ready to List: | May 2025 |
| Advertise Project: | September 2025 |
| Begin Construction: | January 2026 |
| Complete Construction: | December 2028 |
News Release:
09.09.21 Second Public Meeting Scheduled for State Route 49 Corridor Improvement Project
08.26.21 Caltrans Seeks Public Feedback on State Route 49 Corridor Improvement Project
Project Contacts:
Sam Vandell, Project Manager, (530) 741-4593; sam.vandell@dot.ca.gov
Jeremy Linder, Public Information Officer, (530) 701-5209; jeremy.linder@dot.ca.gov