Water flowed through a 31,600ft long flume to the penstock above the power house. Each turbine receives water via a diameter penstock. A steel penstock connects the reservoir intake at the dam site to the conduit. A mill race has many geographically specific names, such as "leat, lade, flume, goit, penstock". A large pipe (the "penstock") delivers water from the reservoir to the turbine. The guide vanes therefore act as the valves between the penstock and turbine. The other contained a penstock (pipe) for the hydroelectricity power plant. Generators in the powerhouse are connected to turbines in the adjacent penstock. Water from the larger reservoir is fed to another penstock for a length of . The conduit bringing high-pressure water to the impulse wheel is called the penstock. The penstock builds up pressure from the water that has traveled downwards. Here a 3.9 kilometer long penstock begins. Each penstock is in diameter and between in length. Each generator is supplied with water by an individual penstock. In mountainous areas, access to the route of the penstock may provide considerable challenges.