California Department of Transportation

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State Route 74 - Draft Environmental Impact Report


PLEASE SEE Final Environmental Impact Report.

(This is the Draft, retained for reference only)


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.

Announcement of Public Hearing - Wednesday January 14, 2009

Announcement of Public review period of the environmental study extended to February 14, 2009 allowing for a 75 day review period for the DEIR


The entire Draft EIR document is large (approximately 58MB) and may take a long time to download on some internet connections. For your convenience we are also providing links to individual chapters below (followed by the technical studies):

Table of Contents


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
      2.1.1 Chapter 2 Introduction and 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 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 (about 25MB)
      Appendix H - Cover Page and Appendix H - Comments on Initial Study (with proposed Mitigated Negative Declaration). Note: the Initial Study is also available (see also the additional link just below the technical studies).
      Appendix I Noise Attenuation
      Appendix J City of San Juan Capistrano Tree Removal Ordinance

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

Here is the Initial Study (IS)/Proposed Mitigated Negative Declaration (MND) document circulated in July 2007 (approximately 25MB). Due to the nature of the comments received during the public review period of the Initial Study/Proposed MND document, the above Draft EIR was prepared.

All of the above are also available on CD or paper:


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

Hard copies:

Delivery in California is approximately 3 working days
Draft EIR without Appendix H is $420.00
Draft 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 Draft 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.

Thank you for your visit.