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SR-57 Northbound Project - Lambert Road to Tonner Canyon Road

The Orange Freeway (SR-57) from Lambert Road to Tonner Canyon Road is an important truck route and an integral part of Southern California’s freeway network. 

OC Go Logo in blue

Project Overview

This project requires coordination between OCTA and Los Angeles Metro, two Caltrans Districts (7 and 12) and the cities in the project area, to study the addition of a truck climbing lane to enhance freeway operations and improve regional circulation of goods and services along this segment of northbound SR-57. This project length is approximately 2.5 miles.

Project Benefits

  • Improve traffic flow and increase throughput overall

  • Interchange and ramp improvements at Lambert Road (currently under construction)

  • Addition of a northbound truck climbing lane from Lambert Road to Tonner Canyon Road (second phase)


At a Glance

Length
Affected Cities
Total Cost
Funding Sources
Approximately 2.5 miles Brea $121.5 million (Phase 1), To Be Determined (Phase 2) OC Go, State, Federal and Local Funds
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