Detroit & Big Cliff Dams on the North Santiam River

Detroit Dam is located at river mile 49 on the North Santiam River, about 45 miles southeast of Salem, Oregon. Detroit Dam has two hydropower generating units capable of producing 50 megawatts each.

Big Cliff Dam is also on the North Santiam River three miles downstream of Detroit Dam and re-regulates water released from Detroit.

Carrying out the Reasonable and Prudent Alternative (RPA) from the 2008 Willamette Project Biological Opinion requires a suite of actions determined necessary to protect ESA-listed Upper Willamette River Spring Chinook salmon and Upper Willamette River Winter Steelhead ESUs. Key actions which apply for all of the project dams covered under the 2008 Opinion include:

In addition, reasonable RPA actions for Detroit and Big Cliff Dams include:


Detroit Dam Photo - Army Corps of Engineers


More information about this and other Willamette Valley Projects