State Route 133 Operational Improvements Project

4 Documents in Project


SCH Number
Lead Agency
California Department of Transportation, District 12 (DOT)
Document Title
State Route 133 Operational Improvements Project
Document Type
MND - Mitigated Negative Declaration
Present Land Use
Transportation, and Mixed Commercial and Industrial
Document Description
The California Department of Transportation (Caltrans) proposes an operational improvements project on State Route 133 (SR-133) from 0.2 miles north of Route 133/405 separation (PM 8.3) to Irvine Center Drive Overcrossing (PM M9.3) in the City of Irvine, in the County of Orange. The project proposes to construct new auxiliary lane on southbound (SB) SR-133 from NB 1-405 connector to SB 1-5 connector. This new aux lane will become the 2nd lane on NB 1-405 Connector. The number 3 lane on SB SR-133 will be extended approximately 300 feet south of San Diego Creek to match existing roadway pavement.

Contact Information

Bahar Heydari
Agency Name
Caltrans District 12
Contact Types
Lead/Public Agency

Agency Name
Bahar Heydari, Caltrans, District 12
Contact Types
Project Applicant


Cross Streets
Route 133/405 Grade Separation & Irvine Center Drive Overcrossing
Total Acres
More than 1 acre
State Highways
SR-133, I-405, I-5
San Diego Creek
Other Location Info
Railways: Irvine Park Railroad, Metrolink, Amtrak

Notice of Completion

State Review Period Start
State Review Period End
State Reviewing Agencies
California Air Resources Board (ARB), California Department of Conservation (DOC), California Department of Forestry and Fire Protection (CAL FIRE), California Department of Parks and Recreation, California Department of Toxic Substances Control (DTSC), California Department of Water Resources (DWR), California Highway Patrol (CHP), California Native American Heritage Commission (NAHC), California Natural Resources Agency, California Public Utilities Commission (CPUC), California Regional Water Quality Control Board, San Diego Region 9 (RWQCB), Office of Historic Preservation, State Water Resources Control Board, Division of Drinking Water, California Department of Fish and Wildlife, South Coast Region 5 (CDFW), California Regional Water Quality Control Board, Santa Ana Region 8 (RWQCB)
State Reviewing Agency Comments
California Department of Fish and Wildlife, South Coast Region 5 (CDFW), California Regional Water Quality Control Board, Santa Ana Region 8 (RWQCB)
Development Types
Transportation (Operational Improvements)
Project Issues
Aesthetics, Agriculture and Forestry Resources, Air Quality, Biological Resources, Cultural Resources, Cumulative Effects, Flood Plain/Flooding, Geology/Soils, Growth Inducement, Hazards & Hazardous Materials, Hydrology/Water Quality, Land Use/Planning, Mineral Resources, Noise, Population/Housing, Public Services, Recreation, Transportation, Vegetation, Wetland/Riparian, Wildfire, Climate Change


Environmental Document

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