District 12 Environmental

For any copies of Environmental Documents please contact Public Information Office via email or via phone at (657) 328-6000.

I-5 HOV South County Project
I-5 Managed Lanes Project (Red Hill Ave. to OC/LA County Line)
I-5 Widening (I-405 to SR-55)
I-5 El Toro Interchange Project
I-405 Improvement Project
I-405 Multi Asset Project
SR-1 Bike Lane Project
SR-55 Multi Asset Project 
SR-57 Northbound Improvement Project (Orangewood Ave. to Katella Ave.) 
SR-57 Stormwater Mitigation Project
SR-74 Lower Ortega Widening Project
SR-91 Improvement Project (SR-57 to SR-55)
SR-133 Operational Improvements Project
SR-241/SR-91 Tolled Express Lane Connector Project
Various Route Bridge Maintenance Project (I-5, SR-133, and SR-241)