San Diego Freeway I-405 Improvement Project

12 Documents in Project


SCH Number
Lead Agency
California Department of Transportation, District 12
Document Title
San Diego Freeway I-405 Improvement Project
Document Type
EIR - Draft EIR
Present Land Use

Document Description
Note: Extended Review. The I-405 Improvement Project proposes to widen the corridor by adding: one general purpose (GP) lane in each direction between Euclid Street and I-605; or two GP lanes in each direction between Brookhurst/Euclid Streets and I-605; or one GP lane between Euclid Street and I-605 and one tolled Express Lane in each direction between State Route 73 (SR-73) and SR 22 east of I-405 to be managed jointly as a tolled Express Facility with two lanes in each direction between SR-73 and I-605. The proposed action would improve the freeway mainline and interchanges on I-405 in Orange and Los Angeles counties for approximately 16 miles between 0.2 mile south of Bristol Street and 1.4 miles north of I-605, as well as portions of SR-22, SR-73, and I-605 to reduce congestion and improve lane continuity through the corridor.

Contact Information
Smita Deshpande
California Department of Transportation, District 12
Lead/Public Agency
3347 Michelson Drive, Suite 380
Irvine, CA 92612

Phone : (949) 724-2245


Costa Mesa Fountain Valley Huntington Beach Seal Beach
Cross Streets
I-405 between SR-73 & I-605
Parcel #
State Highways
SR-22, SR-55
Union Pacific, US Navy
John Wayne
Many, including Westminister Channel, Santa Ana River

Notice of Completion

Review Period Start
Review Period End
Development Type
Transportation:Highway/Freeway (Highway Improvement)
Local Action
Hwy Improvement
Project Issues
Aesthetics Agriculture and Forestry Resources Air Quality Biological Resources Coastal Zone Cultural Resources Cumulative Effects Drainage/Absorption Economics/Jobs Fiscal Impacts Flood Plain/Flooding Geology/Soils Growth Inducement Hazards & Hazardous Materials Hydrology/Water Quality Land Use/Planning Mineral Resources Noise Population/Housing Public Services Recreation Schools/Universities Septic System Sewer Capacity Solid Waste Transportation Vegetation Wetland/Riparian Wildfire
Reviewing Agencies
California Department of Conservation (DOC) California Department of Fish and Wildlife, South Coast Region 5 (CDFW) California Department of Parks and Recreation California Highway Patrol California State Lands Commission (SLC) Caltrans, Division of Aeronautics Department of Water Resources Office of Historic Preservation Resources Agency State Water Resources Control Board, Division of Water Quality California Public Utilities Commission (CPUC) California Native American Heritage Commission (NAHC) Department of Toxic Substances Control Other - Public Comments

Disclaimer: The document was originally posted before CEQAnet had the capability to host attachments for the public. To obtain the original attachments for this document, please contact the lead agency at the contact information listed above. You may also contact the OPR via email at or via phone at (916) 445-0613.

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