The Santa Cruz County Regional Transportation Commission (RTC), in cooperation with the California Department of Transportation (Caltrans) and the Federal Highway Administration (FHWA), has prepared the Highway 1 Tier I/Tier II Environmental Impact Report/Environmental Assessment. For purposes of environmental analysis, the project is divided into two components:
- Tier I – A long term, program level analysis for the future of the Highway 1 corridor between Santa Cruz and Aptos. The Tier I concept for the corridor would be built over time through a series of smaller incremental projects (referred to as Tier II projects).
- Tier II – Project level analysis for auxiliary lanes between 41st Avenue and Soquel Drive and a pedestrian/bicycle overcrossing of Highway 1 at Chanticleer Avenue.
The full environmental document is provided below.
Final Environmental Document
Volume I: Final Environmental Document (34 MB)
Volume II: Final Appendices (68 MB)
Volume III: Response to Public Comments (22 MB)
Addenda to Technical Studies:
- Addendum to Air Quality Study Report with Appendix
- Addendum to Community Impact Assessment
- Addendum to Drainage Report
- Addendum to Growth Inducement Study
- Addendum to Preliminary Geotechnical Report
- Addendum to Natural Environment Study
- Cumulative Impact Analysis Technical Report
- Addendum to Noise Study Report
- Biological Assessment (24 MB)
- Addendum to Storm Water Data Report
- Traffic Operations Report Appendix J and Appendix K
- Addendum to Visual Impact Assessment
- Addendum to Water Quality Study Report
- Biological Resources Memorandum to File (posted 1/3/19)
- Noise Memorandum to File (posted 1/3/19)
- Hazardous Waste Memorandum to File (posted 1/3/19)
- Energy Memorandum to File (posted 1/3/19)
- Update to Transit Market Analysis of Freeway-Oriented Express Buses (posted 1/3/19)
Draft Environmental Document
Volume I: Draft Environmental Document
Technical Studies
- Air Quality Study Report, March 2013
- Archaeological Survey Report, December 2010 – Confidential
- Community Impact Assessment, September 2015
- Draft Relocation Impact Study, June 2015
- Drainage Report, December 2013
- Growth Inducement Study, September 2008
- HOV Report – September 2007
- Historic Property Survey Report, December 2010 – Volume I is confidential
- Historic Resources Evaluation Report, May 2010
- Location Hydraulics Study Report, March 2013
- Natural Environment Study, January 2015
- Noise Study Report, May 2013
- Paleontological Evaluation Report and Addendum, April 2008/September 2011 – Confidential
- Parking Impacts Memorandum, April 2011
- Phase 1 Initial Site Assessment, March 2014 and Appendix B Environmental Database Search Report
- Preliminary Geotechnical Report, July 2007
- Storm Water Data Report, November 2012
- Technical Memorandum on Energy Impacts, May 2011
- Traffic Operations Report, April 2012 and Appendix
- Traffic Operations Report Supplemental Report, May 2010
- Transit Market Analysis Study – May 2008
- Visual Impact Assessment, July 2013
- Water Quality Study, March 2013
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