I-5/El Toro Road Interchange Project

1 Documents in Project


SCH Number
Lead Agency
Caltrans 12 (Santa Ana) (California Department of Transportation, District 12)
Document Title
I-5/El Toro Road Interchange Project
Document Type
MND - Mitigated Negative Declaration

Document Description
Note: Review Extended Per Lead Two Build Alternatives (including Design Option B} and the No Build Alternative are being considered (Alternative 2 - Flyover and Alternative 4 - Southbound Collector Distributor and Hook Ramps [includes Design Opt ion BJ). The Build Alternatives are in Orange County at the 1-5/EI Toro Road Interchange wit h in the cities of Laguna Hills, Lake Forest, and Laguna Woods. The project limits extend from 0.1 mile south of Los Alisos Boulevard Overcrossing (PM 17.8) to 0.4 mile north of Ridge Route Drive (PM 19.7), and on El Toro Road from Rockfield Bouleva rd to Paseo De Valencia. The total length of the project limits is 1.9 miles. The purpose of the proposed project is to improve traffic flow and traffic signal optimization, to reduce traffic congestion at and through adjacent local street intersections, and to reduce freeway ramp queuing.

Contact Information
Gabriela Duran
California Department of Transportation District 12
1750 E 4th St #100
Santa Ana, CA 92705



33°36'52.4"N 117°42'28.7"W
Lake Forest Laguna Woods Laguna Hills
Cross Streets
Interstate 5 and El Toro Road
Total Acres
Parcel #
State Highways
Multiple (3)
Aliso Creek

Notice of Completion

Review Period Start
Review Period End
Development Type
Transportation (Interchange improvement)
Project Issues
Cumulative Effects Landuse Growth Inducing Wetland/Riparian Water Supply Water Quality Vegetation Traffic/Circulation Toxic/Hazardous Soil Erosion/Compaction/Grading Schools/Universities Recreation/Parks Public Services Population/Housing Balance Noise Minerals Geologic/Seismic Forest Land/Fire Hazard Flood Plain/Flooding Fiscal Impacts Economics/Jobs Drainage/Absorption Biological Resources Archaeologic-Historic Air Quality Agricultural Land Aesthetic/Visual
Reviewing Agencies
Department of Fish and Wildlife, Region 5 Air Resources Board California Department of Parks and Recreation California Energy Commission California Highway Patrol California Public Utilities Commission Department of Toxic Substances Control Department of Water Resources Native American Heritage Commission Office of Historic Preservation Regional Water Quality Control Board, Region 8 Resources Agency State Water Resources Control Board, Division of Water Quality


Environmental Document
extension memo   PDF 20 K extend   PDF 185 K Master TOC   PDF 146 K Cover page front matter   PDF 692 K Appendix K - Const Emissions   PDF 266 K Appendix J - TMP   PDF 2359 K Appendix I - Design Risks Risk Assessment   PDF 136 K Appendix H - Layout Plans   PDF 3974 K Appendix G - References   PDF 84 K Appendix F List of Technical Studies   PDF 79 K Appendix E ECR   PDF 282 K Appendix D - RTP-FTIP   PDF 374 K Appendix C Summary of Relocation Benefits   PDF 112 K Appendix B Title VI   PDF 103 K Appendix A - Section 4(f)   PDF 1135 K 6   PDF 112 K 5   PDF 96 K 4   PDF 3155 K 3   PDF 731 K 2   PDF 891 K 2   PDF 109 K 2   PDF 130 K 2   PDF 6703 K 2   PDF 850 K 2   PDF 137 K 2   PDF 121 K 2   PDF 511 K 2   PDF 150 K 2   PDF 138 K 2   PDF 7172 K 2   PDF 320 K 2   PDF 170 K 2   PDF 5760 K 2   PDF 2294 K 2   PDF 104 K 1   PDF 1139 K Summary Form   PDF 151 K
NOC   PDF 591 K
State Comments
2019049006 cdfw   PDF 1037 K
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