Nine Mile Hydroelectric Power Plant Historic District - Credit: Wikimedia Commons
Nine Mile Hydroelectric Power Plant Historic District - Credit: Wikimedia Commons
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. Read more on Wikipedia
Source: en.wikipedia.org