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Nine Mile Falls Dam
Nine Mile Falls Dam is a dam on the Spokane River, in the unincorporated community of Nine Mile Falls, Washington. It was built on the site of the falls in 1908, creating Nine Mile Reservoir. The dam was designed by the New York engineering firm of Sanderson & Porter, and originally constructed to satisfy the power needs of the Spokane and Inland Empire Railroad interurban trolley lines.[2]..Washington Water Power (now the power company Avista) purchased the site in 1925, and continues to operate it as one of its six hydroelectric generating plants on the Spokane River. The 58-foot-high cyclopean masonry dam and its powerhouse, storehouse, ten cottages and other structures were placed on the National Register of Historic Places in 1990
Skykomish River
The Skykomish is sometimes referred to by the nickname "Sky River" or "The Sky"..According to the U.S. Geological Survey, the South Fork is about twice the size of the North Fork in terms of both discharge and watershed area above their confluence at Index, making it the true hydrologic source of the Skykomish River. The South Fork average flow of 2,431 cu ft/s (68.8 m3/s) is sourced from a drainage area of 355 square mile
