San Diego Freeway (I-405) Improvement Project


The Interstate 405 (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 and one tolled Express Lane in each direction between State Route 73 (SR-73) and State Route 22 (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 objective is to open the tolled Express Lanes with a HOV2+ occupancy free to encourage rideshare and transit usage. Operational adjustments to the tolled Express Lanes may be implemented based on demand, rates of speed, traffic volumes, and to meet financial covenants, maintenance and operational obligations. 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.

Final Environmental Impact Statement / Environmental Impact Report (FEIS/EIR)

The complete document is very large (about 1.63 gigabytes), links to individual chapters and sections are provided below for your convenience.

Record of Decision

Notice of Determination

Final EIS/EIR:

Cover Pages
Front Matter (General Information About This Document, Title Sheet)
Table of Contents
CHAPTER 1  Proposed Project (Introduction, Project Purpose and Need)
CHAPTER 2  Project Alternatives (Project Alternatives Background, Project Alternatives, Permits and Approvals Needed)
CHAPTER 3 Affected Environment, Environmental Consequences, And Avoidance, Minimization, and/or Mitigation Measures
3.1.1   Land Use
3.1.2   Growth
3.1.3   Farmlands/Timberland
3.1.4   Community Impacts
3.1.5   Utilities/Emergency Services
3.1.6   Traffic & Transportation/Pedestrian and Bicycle Facilities
3.1.7   Visual/Aesthetics
3.1.8   Cultural Resources
3.2.1   Hydrology and Floodplains
3.2.2   Water Quality and Stormwater Runoff
3.2.3   Geology/Soils/Seismic/Topography
3.2.4   Paleontology
3.2.5   Hazardous Waste/Materials
3.2.6   Air Quality
3.2.7   Noise
3.2.8   Energy
3.3.1   Natural Communities
3.3.2   Wetlands
3.3.3   Plant Species
3.3.4   Animal Species
3.3.5   Threatened and Endangered Species
3.3.6  Invasive Species
3.4     Relationship between local short-term uses of the human enviroment and the maintenance of long-term productivity
3.5     Irreversible and irretrievable commitments of resources that would be involved in the proposed project
3.6     Cumulative Impacts   
CHAPTER 4 California Environmental Quality Act (CEQA) Evaluation
CHAPTER 5 Comments and Coordination
CHAPTER 6  List of Preparers
CHAPTER 7 Distribution List


Appendices Front Matter

Appendix A - CEQA Checklist
Appendix B - Resources Evaluated Relative to the Requirements of Section 4(f) and 6(f)
Appendix C - Title VI Policy Statement
Appendix D - Summary of Relocation Benefits
Appendix E - Environmental Commitment Record
Appendix F - List of Technical Studies
Appendix G - List of Acronyms
Appendix H - References
Appendix I - Public and Agency Coordination
Appendix J - Air Quality
Appendix K - Utility Locations
Appendix L - Traffic
Appendix M - Proposed Ramp Closure Detour Routes
Appendix N - Noise Information
Appendix O - Biological Resources
Appendix P - Project Plans (note: heavy graphics, may take longer to open)
Appendix Q - Hydrology & Floodplains/Water Quality and Stormwater Runoff Exhibits
Appendix R1 - Volume 1 - Draft EIR/EIS Response to Comments (about 145MB)
Appendix R1 - Volume 2 - Draft EIR/EIS Response to Comments (about 80MB)
Appendix R2 - Supplemental Draft EIR/EIS Response to Comments (about 95MB)

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