Fish Passage

Fish Protection and Passage

Our scientists and engineers have extensive experience with both upstream and downstream fish passage of multiple species.  Alden has been involved with designing, modeling, and testing fish passageways, such as ladders, lifts, and natural channels.  In addition, the group has performed biological field and laboratory studies to determine the efficacy of fish passage devices.  Alden staff has a long standing working relationship with FERC, USFWS, NOAA and many regional, state, and local agencies.

Recent Project Summaries: