SR-57/SR-60 Confluence at Grand Avenue Project

Last updated 8/13/09

UPDATES: City staff will post updates here as additional information becomes available. For more information about this project, visit the Caltrans website at or call the Caltrans Citizen Participation phone line at 213.897.0849

Comment Period Deadline has closed (September 18, 2009)

Project Information

Project Title - SR-57/SR-60 Confluence at Grand Avenue Project (57/60 interchange)

Project Location - Cities of Industry and Diamond Bar in Los Angeles County

Project Description - The California Department of Transportation (Caltrans) in cooperation with the City of Industry will prepare an Environmental Impact Report (EIR)/Environmental Assessment (AE) on a proposal for constructing freeway improvements to the State Route 57 (SR-57/Orange Freeway))/State Route 60 (SR-60/Pomona Freeway)) Confluence at the Grand Avenue interchange in Los Angeles County, California. The project consists of the reconfiguration of the approximately 2.5 confluence of SR-57 and SR-60, which includes the addition of auxiliary lanes and associated on-ramp/off-ramp reconfiguration. A Project Study Report (PSR) for the project was completed in March 2009.

Purpose – To improve traffic operation on Grand Avenue from Golden Springs Drive to the interchange at SR-60 (Pomona), increase capacity at the Grand Avenue Interchange, improve traffic operation on the freeway mainline, reduce traffic weaving and increase weaving distance and improve safety.



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