SR-57 Truck Climbing Lane Project
SR-57 Truck Climbing Lane Project Overview
Caltrans, in partnership with OCTA, is proposing improvements to northbound SR-57 between Lambert Road and the Orange/Los Angeles County line to improve traffic flow and support regional goods movement. The project would extend the existing general-purpose lane as a truck-only climbing lane to separate slower-moving trucks from other traffic, improve multimodal travel, and incorporate advanced technology where feasible. The project is evaluating two Build Alternatives and one No Build Alternative.
Proposed Improvements
Alternative. 1 – No Build
Existing configuration of the project area is maintained.
Alternative 2 – Build Alternative
This alternative would add one truck climbing lane on northbound SR-57 from Lambert Road to just south of Tonner Canyon Road.
Alternative 3 – Build Alternative
This alternative would add one truck climbing lane on northbound SR-57 from Lambert Road to the Orange County/Los Angeles County line.
Contact the Outreach Team
If you have any questions or would like to request information in another language, please contact the Outreach Team at (800) 724-0353 or email 57TruckClimbing@octa.net.