SR-57 Lambert to Tonner Canyon - Fact Sheet

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