Specifications include, but are not limited to: The Bradley Lake Hydroelectric Project is located on the Kenai Peninsula at the northeast end of Kachemak Bay about 27 miles from Homer. The project contributes to the electrical generating capacity of Alaska's Railbelt serving customers from the Kenai Peninsula to Fairbanks. Major elements of the project include a concrete faced rockfill dam to raise the level of Bradley Lake about 100 feet, an ungated spillway having discharge capacity of 23,800 cfs at pool elevation 1190.6, a diversion tunnel which also serves as a low level outlet, a submerged intake leading to the power tunnel which, including the vertical shaft, is 19,152 ft. long, a surface powerhouse located on the shore of Kachemak Bay and a tailrace channel into the bay. All elevations given in this report are referred to Bradley Lake Project Datum, at which zero is equal to 13.63 ft. above MLLW at Bear Cove. Add 9.76 ft at Bradley Dam vertical control station “Venus” to convert Project Datum to NAVD88 elevations. The two unit plant has a nominal generating capacity of 120 MW at 917 ft. net head. Each generating unit consists of a six jet, vertical shaft Pelton turbine driving a 63 MVA generator at 0.95 power factor. The penstock for a future third unit was also constructed as part of the initial project development. Usable storage in Bradley Lake at full pool (El 1180) is about 280,000 acre ft. The project is connected to the existing Kenai Peninsula transmission and distribution system via a 20- mile overhead transmission line, consisting of two parallel 115 KV lines. The lines run through the Fox River Delta to connect with Homer Electric Association's Fritz Creek to Soldotna Transmission line. A summary of pertinent project data is given on Table 1.
