Run-of-River Operations

Most of the FCRPS projects have very little active storage. Those projects within the migratory corridor are managed to reduce the travel time for outmigrating juvenile salmon. This increases juvenile survival. The concept of "minimum operating pool" applies to the following projects:

These projects are drawn-down approximately 5 feet from full pool during the juvenile migration season (April-August). The lower pools (measured in elevation) result in shorter travel times for fish.

Additional measures to avoid passage through the turbines and improve survival are to provide spill or transport fish around the dams. Learn more about spill and transport.