Flow Targets

Biological Opinion (BiOp) Flow Targets are river flow targets that if met would create the best conditions for salmon and trout recovery throughout the Willamette River System. These targets were part of a salmon recovery plan outlined in a 2008 National Oceanic and Atmospheric Administration (NOAA) Fisheries report and include efforts to make dams more fish friendly by improving water temperature through changes in peak flows. BiOP flow targets support fish migration as well as reduce the likelihood of disease outbreaks.

This indicator measures stream flow targets for salmon and steelhead.

Tributaries flowing into the Willamette contain thirteen dams operated by the U.S. Army Corps of Engineers and another eight operated by local and regional water management utilities. Photo courtesy of Dave Herasimischuk (Freshwaters Illustrated).