California Department of Transportation

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State Route 74 - Final Environmental Impact Report

This project proposes to widen State Route 74 (SR-74) from two lanes to four lanes from Calle Entradero in the City of San Juan Capistrano to the City/Orange County line. The purpose of this project is to relieve existing and future traffic congestion and improve the flow of traffic on SR-74, accommodate planned growth and development in the surrounding areas, and close the gap, as well as provide improvements consistent with local planning documents.

For your convenience we are providing links to individual chapters below, followed by the technical studies:

Table of Contents


Front Matter

CHAPTER 1 - Proposed Project
     (Introduction, Project Background, Purpose and Need, Project Description, Alternatives, Permits and Approvals Needed)

CHAPTER 2 - Affected Environment, Environmental Consequences, and Avoidance, Minimization, and/or Mitigation Measures
      Chapter 2 Introduction
      2.1.1 Land Use
      2.1.2 Growth
      2.1.3 Community Impacts
      2.1.4 Utilities and Emergency Services
      2.1.5 Traffic and Transportation
      2.1.6 Visual and Aesthetics
      2.1.7 Cultural Resources
      2.2.1 Hydrology and Floodplain
      2.2.2 Water Quality and Storm Water Runoff
      2.2.3 Geology and Soils
      2.2.4 Paleontology
      2.2.5 Hazardous Waste and Materials
      2.2.6 Air Quality
      2.2.7 Noise and Vibration
      2.2.8 Energy
      2.3 Biological Environment
      2.4 Cumulative Impacts
      2.5 Climate Change

CHAPTER 3 - Comments and Coordination

CHAPTER 4 - List of Preparers

CHAPTER 5 - Distribution List

CHAPTER 6 - References

      Appendix A - Notice of Preparation
      Appendix B - Minimization_and_Mitigation_Summary
      Appendix C - Agency Correspondence
      Appendix D - 2008 Regional Transportation Improvement Program
      Appendix E - List of Acronyms
      Appendix F - List of Technical Studies
      Appendix G - Preliminary Design Layouts
      Appendix H - Comments on the Initial Study with Proposed Mitigated Negative Declaration
      Appendix I - Noise Attenuation
      Appendix J - Comments and Responses to Comments on the Draft Environmental Impact Report

Here are the individual technical studies:

Air Quality Analysis
Air Quality Assesesment Report Nov 2008
Caltrans MND Study - Air Quality Assessment

NES Supplement
Caltrans MND Study-NES 2007

2nd Supplement SHRCR
Supplemental Historical Resources Compliance Report
Caltrans MND Study - Historical Property Survey Report

Revised Hydrology Study for EA, Route 74
Caltrans MND Study - Hydrology Study

Haz. Waste ISA
Caltrans MND Study - ISA 2000

Final Tech. Noise Impact Analysis Report Addendum 07-09-08
Caltrans MND Study - Final Tech. Noise Impact Analysis Report

Paleo Resources Identification & Evaluation Report
Caltrans MND Study - Paleontology Report

Preliminary Geotechnical
Caltrans MND Study - Preliminary Geotechnical Report

Traffic Study by Austin Foust 7-18-08
Caltrans MND Study - SR-74 Widening Project Traffic Study
Caltrans MND Study - Supplemental Traffic Study

Visual Impact Assessment Sept 2008
Caltrans MND Study - Visual Impact Assessment

Water Resources and Water Quality Tech Study
Caltrans MND Study - Water Quality Tech. Study

The documents above are also available on CD or paper:


Each CD is $1.00
Complete set of CD's is $4.00
(Includes Final EIR with Appendix H, Technical Studies and Initial Study)

Hard copies:

Delivery in California is approximately 3 working days
Final EIR without Appendix H is $420.00
Final EIR with Appendix H is $520.00
Complete set of Technical Studies is $1350.00
Initial Study is $300.00
Complete Set of hard copies is $2170.00
(Includes Final EIR with Appendix H, Technical Studies, and Initial Study)

For CD copies or hard (paper) copies, please contact Scott Shelley at 949-724-2705, or email, Attn. Scott Shelley.

For historical reference here are links to the Initial Study (IS) / Proposed Mitigated Negative Declaration (MND) document circulated in July 2007 (approximately 25MB) and the Draft EIR.

Thank you for your visit.