Fish Passage Design for Roadway Crossings Guidance
The Fish Passage Design for Road Crossings Guidance is an engineering document intended to provide detailed instructions to assist Caltrans designers in generating projects that will achieve resource agency goals for fish passage within a state highway project context. It is neither intended as, nor does it establish, a legal standard for these functions. The content is subject to amendment as conditions and experience may warrant. Special situations may call for a variation from the described procedures.
Developed in conformance with the California Department of Fish and Game (CDFG) and the National Oceanic and Atmospheric Administration (NOAA) Fisheries Service, Southwest Region (PDF) criteria, Fish Passage Design for Road Crossings provides worksheets, flow charts, design examples and other design aids to assist the designer in achieving permit achievable projects.
Other documents that should be used in the design and development of Caltrans fish passage projects include:
- California Fish & Wildlife (CFW) Part XII: Fish Passage Design and Implementation
- CFW Culvert Criteria for Fish Passage, and
- NOAA Fisheries Service Guidelines for Salmonid Passage at Stream Crossings
Click Below to View the Fish Passage Design for Road Crossings Guidance
All Chapters - Complete Download Version (Updated 10/31/2014) (PDF)
Table of Contents
| Fish Passage Design for Road Crossings Guidance (Chapters/Sections) | Last Updated |
|---|---|
| Cover and Table of Contents (PDF) | 5/31/2007 |
| Chapter 1: Forward and Introduction (PDF) | 5/31/2007 |
| Chapter 2: Fish Passage Considerations for Road Crossing Design (PDF) | 5/31/2007 |
| Chapter 3: Fish Passage Design Elements (PDF) | 5/31/2007 |
| Chapter 4: National Marine Fisheries (NMFS) Active Channel Option or Low-Scope California Department of Fish and Game (CDFG) Design Option (PDF) | 8/30/2009 |
| Chapter 5: Stream Simulation Design Option (PDF) | 10/31/2014 |
| Chapter 6: Hydraulic Design Option for New Culverts (PDF) | 5/31/2007 |
| Chapter 7: Culvert Retrofit Design (PDF) | 5/31/2007 |
| Chapter 8: Grade Control Design (PDF) | 5/31/2007 |
| Chapter 9: Fishways (PDF) | 5/31/2007 |
| Chapter 10: References (PDF) | 5/31/2007 |
| Appendix A: Glossary (PDF) | 5/31/2007 |
| Appendix B: CDFG Culvert Criteria For Fish Passage (PDF) | 5/31/2007 |
| Appendix C: National Oceanic and Atmospheric Administration (NOAA) Guidelines for Salmonid Passage at Stream Crossings (PDF) | 5/31/2007 |
| Appendix D: Caltrans Fish Passage Design Forms (PDF) | 10/31/2014 |
| Appendix E: Fish Passage Flows (PDF) | 5/31/2007 |
| Appendix F: Hydraulics of Baffles (PDF) | 10/31/2014 |
| Appendix G: Baffle Sample Calculations and Structural Details (PDF) | 5/31/2007 |
| Appendix H: Design Example - Active Channel Design Option (PDF) | 5/31/2007 |
| Appendix I: Design Example - Hydraulic Design Option (PDF) | 5/31/2007 |
| Appendix J: Design Example - Hydraulic Baffle Design Option (Rehabilitate Culvert with Baffle) (PDF) | 5/31/2007 |
| Appendix K: Design Example - Hydraulic Structure with Rock Weir (PDF) | 5/31/2007 |
| Appendix L: Design Example - Stream Simulation Design (PDF) | 10/31/2014 |
| Appendix M (PDF): Design Example - Construction Considerations (PDF) | 5/31/2007 |
| Appendix N: Rock Weir Design (PDF) | 10/31/2014 |
| Appendix O: Rock Weir and Associated Materials, Non-Standard | 5/31/2007 |