Hydroelectric power development on the Kaweah River began when the Mount Whitney Power Company built a diversion, flume and the Kaweah No. 1 powerhouse on the East Fork in 1899. In 1905 it completed Kaweah No. 2 powerhouse on the Middle Fork. The company then applied for permission to construct a third power plant on the Middle Fork inside Sequoia National Park, which was approved partly because at the time, this was an infrequently visited area of the park. The Kaweah No. 3 plant was completed by 1913, and was followed by more plans to construct a reservoir at Wolverton and at least two additional power plants. The Kaweah plants brought electricity to Visalia for the first time, and the power was also used by farmers to pump groundwater. However, construction of the Wolverton dam was thwarted by bad foundation rock and the other power plants were also never built. Taken over by Southern California Edison in 1917, the system today consists of six dams, three powerhouses, three forebays and many miles of concrete and wooden flumes. The Kaweah No. 3 plant is an eligible property for the National Register of Historic Places.