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Fish Passage Improvement Program

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Services We Provide

The Fish Passage Improvement Program (FPIP) identifies and evaluates the potential to modify or remove structures in waterways that impede the migration of anadromous fish, primarily Chinook salmon (Oncorhynchus tshawytscha) and steelhead (Oncorhynchus mykiss), within the Central Valley.

The program provides:

  • Feasibility studies that focus on fish passage enhancement while supplying continuous, reliable water
  • Complete barrier assessments, including low-flow road crossings, culverts, and dams
  • Development of possible solutions to aid fish passage at different types of barriers
  • Preliminary engineering investigations: topographic and barrier surveys, hydrologic studies, hydraulic modeling, design development and preliminary drawings, and cost estimates for construction alternatives
  • Watershed fish passage barrier inventories
  • Stream habitat surveys to determine the quantity and quality of available habitat for anadromous fish
  • GIS services, including advanced data analysis, data management, and map production
  • Environmental documentation and permitting
  • Coordination with agency staff, stakeholders, and the public

Fish Passage Technical Assistance


FPIP often forms partnerships with agencies and stakeholders to complete fish passage projects. Projects that fall within the CALFED Focus Area (pdf, 300KB) or are included in Integrated Regional Water Management Plans may be eligible for in-kind services. Contact us for details.