State Route 133
Improvement Project

The California Department of Transportation (Caltrans) District 12, in cooperation with the County of Orange, proposes to make improvements to State Route 133 (Laguna Canyon Road) in both directions from just south of El Toro Road to State Route 73 between Post Miles 3.1 and R4.1, in the city of Laguna Beach. The project will make drainage improvements, widen the shoulders, add a Class II Bike lane, and underground overhead utilities. The project also includes safety improvements from 1,700 feet (ft) south of El Toro Road to 1,200 ft north of El Toro Road. The purpose of the project is to improve roadway deficiencies by bringing SR-133 to design standards, improve safety in the vicinity of the SR-133/El Toro Road intersection, and  reduce flooding by improving drainage flow.

The information in the Initial Study with Mitigated Negative Declaration (MND)/Environmental Assessment with Finding of No Significant Impact (FONSI) is intended to disclose potential environmental impacts and proposed avoidance, minimization, and/or mitigation measures to reduce impacts associated with the project.

**If links do not work, please allow a few minutes for the documents to load, then try again** 

Postcard Mailer

Project Fact Sheet

Project Benefits Summary

(Voiceover) Flyover Video - Northbound State Route 133


Cover page/General Information/Title Page
Mitigated Negative Declaration/Finding of No Significant Impact
Table of Contents
CHAPTER 1 - Proposed Project
 Affected Environment, Environmental Consequences, and Avoidance,
Minimization, and/or Mitigation Measures

2.1 Land Use
2.2 Community Impacts
2.3 Utilites and Emergency Services
2.4 Traffic and Transportation/Pedestrian and Bicycle Facilities
2.5 Visual/Aesthetics
2.6 Cultural Resources
2.7 Hydrology and Floodplain
2.8 Water Quality and Storm Water Runoff
2.9 Paleontology
2.10 Hazardous Waste/Materials
2.11 Air Quality
2.12 Noise
2.13 Natural Communities
2.14 Wetlands and Other Waters
2.15 Plant Species
2.16 Animal Species
2.17 Threatened and Endangered Species
2.18 Invasive Species
2.19 Cumulative Impacts
CHAPTER 3 - CEQA Evaluation
CHAPTER 4 - Comments and Coordination
CHAPTER 5 - List of Preparers
CHAPTER 6 - Distribution List

Appendix A - Section 4(f)
Appendix B - Title VI Policy Statement
Appendix C - Construction Emissions Model
Appendix D - List of Technical Reports
Appendix E - Avoidance, Minimization, and/or Mitigation Summary
Appendix F - FTIP/RTP Listings
Appendix G - FEMA/FIRM
Appendix H - Project Plans
Appendix I - Response to Comments (RTCs)
Appendix J - Transporation Management Plan (TMP) Data Sheet

For reference purposes the Intial Study/Environmental Assessment with Proposed Mitigated Negative Declaration is provided below:


Public Notice

Public Hearing Display Boards

Flyover Video - Northbound State Route 133

*Documents were used as reference material only and were not eligible for commenting as part of the public review process for this project.
- Please visit the following URL for Component 2 (Safety Project) reference material used:
- Project Components 3 and 4 were evaluated and adopted in the County of Orange's Laguna Canyon Road Improvement Project IS/MND environmental document adopted in February 2006. An Addendum was adopted and approved in June 2018.

If you have any questions about this project, please contact Edward Dolan, Associate Environmental Planner, California Department of Transportation, District 12, Division of Environmental Analysis, 1750 East 4th Street, Santa Ana, CA 92705; or at (657) 328-6000.

Thank you for your visit! To learn more about other projects please visit our home page at

A Look at District 12

Travel Conditions


Check Current Highway Conditions

You can also call 1-800-427-7623 for current highway conditions.

QuickMap is available in both Google Play and in the App Store. 

Google Play   Apple Store

Statewide Alerts and Other Information