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Fish Passage Improvement Program


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One purpose of the Fish Passage Improvement Program (FPIP) is to identify potential fish passage projects for implementation. To do that, it is necessary to determine where fish passage impediments exist and what fish passage improvement projects are already in motion.

The Fish Passage Improvement Report 2005 (Bulletin 250) identifies potential fish passage impediments and ongoing activities that address fish passage barriers within and outside of the FPIP geographic scope (Map (300KB)).

Fish Passage Improvement Report 2005 - Bulletin 250

This web page provides two methods to view this document. You may choose to download the full document (Front Pages and Chapters (11.5MB)) and the Appendices (834 KB), or you may download each smaller section individually below.

Cover (330 KB)

Front Pages (349 KB) include: the Foreward, Organization- DWR, Acknowledgments, Contents, Metric Conversion Factors, and Acronyms and Abbreviations

Executive Summary (1MB)

Chapter 1 (708 KB) Introduction gives a historical perspective of fish passage improvement in California, and describes FPIP and the efforts to solve "The Problem" outlined in Chapter 2.

Chapter 2 (121 KB) The Problem: Fewer Salmon and Steelhead in the Central Valley describes the historical and current distribution of special-status salmon and steelhead, as well as, the habitat of anadromous fish listed under the Endangered Species Act (critical habitat) and the Magnuson-Stevens Fishery Conservation and Management Act (essential fish habitat). It also describes how artificial structures in rivers and streams cause problems for fish passage.(Figures (8.8 MB))

Chapter 3 (603 KB) Existing Habitat Conditions and Status of Fish Populations describes streams identified as priorities for restoration by state and federal agencies. Each stream description addresses potential impediments to anadromous fish migration, historical and current fish population estimates, spawning and rearing habitat conditions for fish, geography, hydrology, water quality, and fisheries and restoration projects. (Figures and Tables (3.6 MB))

Chapter 4 (376 KB) Current Program Activities provides detailed descriptions of restoration projects supported by FPIP, DWR, and other agencies on streams listed in Chapter 3. (Figures and Tables (2.2 MB))

  • Appendix A (450 KB) Known Structures within CALFED Ecosystem Restoration Program Geographic Scope
  • Appendix B (55 KB) Applicable Laws and Examples of Fish Passage Programs at Other Agencies
  • Appendix C (96 KB) Structure Removal Examples and Challenges (Photos (54 KB))
  • Appendix D (45 KB) Evolutionarily Significant Units, Critical Habitat, and Essential Fish Habitat
  • Appendix E (253 KB) Bay Area and Delta Watersheds outside the FPIP Geographic Scope (Figures and Tables (575 KB))
  • Appendix F (25 KB) California Department of Fish and Game Administrative Reports used to compile the GrandTab Table
  • Appendix G (142 KB) Literature cited in Chapter 3
  • Appendix H (727 KB) Contributors to the Barriers Database
For a complete list of FPIP reports, see the Publications Page. Find additional DWR publications at the DWR Publications Repository.


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