Seven dams are operated along the Spokane River between
Coeur d'Alene Lake in Idaho and 30 miles upstream of the
confluence with the Columbia River. All of these
dams are operated by Avista
Utilities except for the Upriver Dam that is operated
by the City of Spokane.
||Post Falls Dams (3) - in Idaho
||Upriver Dam - in WRIA 57
||Upper Falls Dam - in WRIA 57
||Monroe Street Dam - in WRIA 57
||Nine Mile Dam - in WRIA 54
||Long lake Dam - in WRIA 54
||Little Falls Dam – in WRIA 54
Coeur d'Alene Lake is a naturally occurring lake whose impoundment
was increased by the construction in 1906 of Post Falls dam.
All of the dams on the Spokane River within WRIA 57 are run-of-the-river,
which means that there are no reservoirs and the power generated
is directly a function of the natural flows of the river.
Avista's origin springs from the construction of the Monroe
Street Hydroelectric Development in 1889. Today, Monroe Street
and its four sister hydroelectric developments in the Spokane River Project
provide the region with an average of 100 MW of electric energy,
enough to meet the electrical needs of about 65,000 homes.
The Spokane River Project was first licensed in 1972. The
Federal Energy Regulatory
Commission (FERC) refers to the hydroelectric facilities
subject to a single license as a "Project," and
gives each project a unique number. The Spokane River Project
is FERC No. 2545. The license tells Avista how they can operate
the developments and what protection, mitigation and enhancement
measures (PM&Es) are needed to address the project's ongoing
impacts. The current license expires in 2007, and a new application
was submitted at the end of July 2005. Relicensing is about evaluating
the impacts of the project and developing PM&Es to address
those impacts as the project continues to operate.