California Department of Transportation

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Interstate 5 High Occupancy Vehicle (HOV) Lane Extension

The Orange County Transportation Authority (OCTA), in association with the California Department of Transportation (Caltrans) and the cities of San Clemente, Dana Point, and San Juan Capistrano, is proposing to add one High Occupancy Vehicle (HOV) lane in each direction from Avenida Pico (PM 3.0) to San Juan Creek Road (PM 8.7).  The project purpose is to provide continuity of the I-5 mainline HOV network within the project limits; maximize overall performance by minimizing weaving conflicts at the termini of the HOV lanes and maintaining travel speeds for HOV lane users; provide intermittent auxiliary lanes, where needed, to relieve congestion at diverge and merge locations; minimize right-of-way acquisition; relieve congestion within interchange areas, on- and off-ramps, and at local intersections (including Avenida Pico); and reduce congestion on I-5 within the project limits. The project is currently in the environmental phase.

Additional project information can be found on the OCTA project website at

For your convenience here are the Original 2011 Public Notice and Fact Sheet

Here is the Initial Study/Environmental Assessment with Mitigated Negative Declaration/Finding of No Significant Impact :

Front Matter / Cover / Table of Contents
Chapter 1
Chapter 2 Introduction

2.1 Land Use
2.2 Growth
2.3 Community Impacts
2.4 Utilities and Emergency Services
2.5 Traffic and Transportation
2.6 Visual and Aesthetics
2.7 Cultural
2.8 Hydrology and Floodplain
2.9 Water Quality and Storm Water Runoff
2.10 Geology Soils Seismicity Topography
2.11 Paleontology
2.12 Hazardous Waste
2.13 Air Quality
2.14 Noise and Vibration (20MB)
2.15 Natural Communities
2.16 Wetlands and Other Waters
2.17 Plant Species
2.18 Animal Species
2.19 Threatened and Endangered Species
2.20 Invasive Species
2.21 Cumulative Impacts
2.22 Climate Change

Chapter 3 Comments and Coordination
Chapter 4 List of Preparers
Chapter 5 Distribution List


Appendix A - CEQA Checklist
Appendix B - Correspondence
Appendix C - Title VI
Appendix D - Summary of Relocation Benefits
Appendix E - Glossary of Technical Terms
Appendix F - MMRR
Appendix G - List of Acronyms
Appendix H - List of Technical Studies
Appendix I - References
Appendix J - Concept Plans (17MB)

Appendix K - Response to Comments

Technical / Support Documents

(From 2011 Initial Study with Proposed Mitigated Negative Declaration / Environmental Assessment and Supporting Technical Studies)

Air Quality Conformity.pdf (7MB)
Air Quality Report.pdf (9MB)
Historic Property Survey Report (40MB)
Natural Environment Study (NES)

NES Appendix A
NES Appendix B
NES Appendix C
NES Appendix D
NES Appendix E
NES Appendix F
NES Appendix G
NES Appendix H
NES Appendix I
NES Appendix J
NES Appendix K (8MB)

Supplemental NES Memo
Floodplain Encroachment
Hazardous Waste Initial Site Assessment (80MB)
Noise Abatement Decision Report
Noise Study Report (57MB)
Paleontological Resources Identification and Evaluation Report
Relocation Impact Memo
Traffic Report / Traffic Report Appendix (26MB)
Visual Impact Assessment (42MB)
Water Quality Assessment Report

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