Nine Mile is a captivating hydroelectric facility located in Spokane, Washington, along the picturesque Spokane River. This privately owned dam, completed in 1908, boasts a gravity design with a height of 58 feet and a hydraulic height of 68 feet. With a storage capacity of 4,600 acre-feet and a surface area of 440 acres, Nine Mile serves multiple purposes including hydroelectric power generation, fish and wildlife conservation, and recreation.

Managed by the Federal Energy Regulatory Commission, Nine Mile is a significant contributor to the region's energy production, with a maximum discharge capacity of 60,000 cubic feet per second. The dam's controlled spillway, with a width of 225 feet, ensures efficient water management during periods of high flow. However, the dam is classified as having a high hazard potential and a very high risk assessment due to its age and condition, highlighting the importance of regular inspections and emergency preparedness.

As a key player in the region's water resource management, Nine Mile is not only a source of renewable energy but also a vital contributor to the local ecosystem and recreational activities. Its historical significance and engineering marvel make it a must-visit destination for water resource and climate enthusiasts looking to witness firsthand the intersection of human ingenuity and natural beauty.