State Route 20 Salt Creek Canyon
Project Description:
Near Williams, from Lake County line to Interstate 5 (I-5). Widen shoulders, upgrade guardrail and drainage system, add rumble strips, and new signage and striping to improve safety along this corridor.
Project Map Location:
Purpose:
The project aims to enhance safety for the traveling public on SR 20 and reduce the severity of collisions.
Need:
A Road Safety Audit was conducted along the SR 20 corridor from the Lake County line (PM 0.0) to I-5 (PM R22.1) in November 2021, with the final report issued in April 2022. The audit identified major safety concerns within the Salt Creek Canyon segment (PM 10.3 to 11.7), which experienced 23 collisions, including 4 fatalities, 2 serious injuries, and 7 minor injuries between January 1, 2015, and December 31, 2019. These findings were the primary reason for initiating this safety project. Other safety concerns throughout the corridor will also be addressed as part of the project.
Cost Estimate:
This project was programmed in the 2024 State Highway Operation and Protection Program (SHOPP) and funded from 20.XX.201.010 Safety Improvements Program.
| Support Cost | $12,080,000 |
| Capital Cost | $34,540,000 |
| Total Project Cost | $46,620,000 |
Schedule:
| Draft Environmental Documents | May 2026 |
| Project Approval & Environmental Document | January 2027 |
| Design Completed |
May 2028 |
| Advertise Project |
June 2028 |
| Begin Construction | September 2028 |
| Complete Construction | December 2029 |
Project Contacts:
Julio Torreiro-Casal, Project Manager, (530) 812-4818; Julio.Torreiro-Casal@dot.ca.gov
Megan Reese, Public Information Officer, (530) 682-6145 megan.reese@dot.ca.gov