Spokane Falls
Encyclopedia
Waterfall
A waterfall is a place where flowing water rapidly drops in elevation as it flows over a steep region or a cliff.-Formation:Waterfalls are commonly formed when a river is young. At these times the channel is often narrow and deep. When the river courses over resistant bedrock, erosion happens...
s and dam
Dam
A dam is a barrier that impounds water or underground streams. Dams generally serve the primary purpose of retaining water, while other structures such as floodgates or levees are used to manage or prevent water flow into specific land regions. Hydropower and pumped-storage hydroelectricity are...
s on the Spokane River
Spokane River
The Spokane River is a tributary of the Columbia River, approximately long, in northern Idaho and eastern Washington in the United States. It drains a low mountainous area east of the Columbia, passing through the city of Spokane, Washington.-Description:...
in downtown Spokane, Washington
Spokane, Washington
Spokane is a city located in the Northwestern United States in the state of Washington. It is the largest city of Spokane County of which it is also the county seat, and the metropolitan center of the Inland Northwest region...
.
The Indian name for the Spokane Falls was "Stluputqu", meaning "swift water". The falls was once the site of a large Spokane people village.
The falls consists of an Upper Falls and a Lower Falls. The Upper Falls is the site of the Upper Falls Dam, a diversion dam constructed in 1920 that directs the water into the Upper Falls intake on the south channel of the Spokane River. The Upper Falls Power Plant incorporates a Francis turbine
Francis turbine
The Francis turbine is a type of water turbine that was developed by James B. Francis in Lowell, Massachusetts. It is an inward-flow reaction turbine that combines radial and axial flow concepts....
capable of generating 10 MW.
The Lower Falls is the site of a second diversion dam, the Monroe Street Dam. Completed in 1890, it was the first dam built on the Spokane River and is currently the longest-running hydroelectric generation facility in Washington State. Its Kaplan turbine
Kaplan turbine
The Kaplan turbine is a propeller-type water turbine which has adjustable blades. It was developed in 1913 by the Austrian professor Viktor Kaplan, who combined automatically adjusted propeller blades with automatically adjusted wicket gates to achieve efficiency over a wide range of flow and...
has a generating capacity of 14.82 MW.