Fish Passage

Thousands of culverts, dikes, diversions, dams, and other artificial barriers have been constructed within waterways for irrigation, flood control, electricity, water supply, and transportation. Local governments in charge of these barriers need practical and sometimes creative solutions to provide passage to fish over these barriers. Stillwater combines a thorough understanding of fisheries biology, geomorphic and hydrologic processes, engineering principles, and construction methods to effectively design and implement fish passage projects. Our project experience includes:   


Storm-damaged fish ladder in lower Santa Paula Creek, California that restricts upstream migration of steelhead.


Dirk Pedersen
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