West Creek : P-14603

[ Proposed ]

Waterway: West Creek

Authorized capacity: 25 mW

License issued: 6/12/2014
License expires: 5/31/2017


The proposed project would consist of the following new facilities:

(1) a 1,500- foot-long, 175-foot-high concrete gravity dam creating a 895-acre reservoir having a total storage capacity of 86,000 acre-feet at a normal maximum operating elevation of 780 feet mean sea level;

(2) a water intake structure at the dam;

(3) a 15,900-foot-long, 10-footdiameter unlined tunnel;

(4) a 60-foot by 150-foot powerhouse containing two turbine/generation units rated for a total of 25 megawatts;

(5) a 100-foot-long by 80-footwide open channel tailrace returning water to the West Branch Taiya River;

(6) a submarine 3.9-mile-long, 34.5-kilovolt transmission line extending from the powerhouse to a landing for a substation on Nahku Bay connected to an existing transmission line owned by the applicant (the point of interconnection); and

(7) appurtenant facilities. The estimated annual generation of the West Creek Project would be 110 gigawatt-hours