I-405 from Wilmington Avenue to Main Street Improvements Project

The Los Angeles County Metropolitan Transportation Authority, in partnership with Caltrans and the South Bay Cities Council of Governments, is planning a freeway improvements project along Interstate 405 from Wilmington Avenue to Main Street in Carson, California, covering Postmile 9.6 to 12.6. The project aims to enhance freeway operations and safety by adding auxiliary lanes between on- and off-ramps to reduce congestion and improve the flow of vehicles during merging and diverging maneuvers. In addition to physical infrastructure upgrades, the project incorporates Transportation System Management and Transportation Demand Management strategies to optimize mobility and reduce delays across the corridor. The design emphasizes a Complete Streets approach, ensuring that all transportation modes—including pedestrians, cyclists, and public transit—benefit from improved accessibility, connectivity, and safety for the surrounding communities. The initiative is currently in the forecast phase with a posted date of August 5, 2026, and is being managed through Caltrans District 7. Primary coordination is led by Rocky Rojas, Environmental Scientist, who can be reached at the provided contact information, while Angie Kung of EGP Consultants serves as the principal environmental planner for technical and planning support. The project’s place of performance is in Carson, California, with a ZIP code of 90745, and all details are accessible via the California Environmental Quality Act website. The project does not currently specify a solicitation number, NAICS code, or set-aside type, indicating it is still in early planning stages with procurement details to follow.