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Fish Passage Solutions
Construction and development activities affect aquatic habitats. They impact the hydraulic conditions of a natural waterway and can block fish from migrating to and from the ocean. We work to minimize these impacts by implementing innovative engineering designs that facilitate safe, timely, and effective fish passage in estuaries and inland watersheds.
Why do we need fish passage?
History of dams
Value of fish
Structures
Videos
- Pelton Fish Trap (Pelton Dam, OR)
- Round Butte Dam Fish Hatchery
- Round Butte Dam - Selective Water Withdraw Facility
- Trail Bridge Dam - High Quality Habitat
- River Mill Fish Ladder
- North Fork Fish Ladder
- Downstream Migrant Pipeline
- River Mill Surface Fish Collector
- Cowlitz River Trap & Haul System
- Cowlitz Falls Juvenile Downstream Passage
- Cowlitz Falls Dam Salmon Hatchery
- Cougar Dam Fish Ladder
- All videos (interactive map)
Resources & Guidance
Fish Passage at Northwest Hydroelectric Projects
Fish Passage & Screening Criteria