1900 First Avenue, Suite 318, Ketchikan, Alaska 99901 Phone (907) 228-2281 | Fax (907) 225-2287

Swan Lake

Swan Lake Power Plant

Swan Lake Power Plant

Swan Lake Power Plant

Swan Lake Power Plant

Swan Lake Power Plant

Swan Lake Power Plant

Swan Lake Power Plant

Swan Lake Power Plant

Swan LakePower Plant

Swan LakePower Plant

Swan Lake Power Plant

Swan Lake Power Plant

Swan Lake Power Plant

Swan Lake Power Plant

Swan Lake Power Plant

Swan Lake Power Plant

Swan Lake Power Plant

Swan Lake Power Plant

Swan Lake Power Plant

Swan Lake Power Plant

 

The Swan Lake Hydroelectric Project located in the vicinity of Ketchikan, Alaska consists primarily of:

  • a concrete arch dam, 174 feet high and 430 feet long at its crest, located approximately 3/4 mile downstream from the mouth of the original Swan Lake and having an uncontrolled ogee spillway section, 100 feet long, with a crest elevation of 330 feet;
     
  • Swan Lake Reservoir, with a surface of 1,500 acres at normal maximum elevation and usable storage capacity of 80,000 acre-feet between elevations 330 and 271.5 feet;
     
  • a power tunnel, 2,200 feet long and 11 feet in diameter, leading from intake structure at the north abutment upstream of the dam to the powerhouse where it divides into two steel-lined penstocks, 5.5 feet in diameter;
     
  • an indoor type, remotely controlled, concrete powerhouse containing two generating units with a total rated capacity of 22,000 kW and located at Carroll Inlet immediately north of the mouth of Falls Creek and also containing the SEAPA's one-half interest in the SCADA system;
     
  • a 13.8/115-kV substation to the extent of the SEAPA's interest therein located adjacent to the powerhouse; 
     
  • access facilities comprised of port facilities 1,000 feet north of the powerhouse, a staging area adjacent to the port facilities and access roads from the port facilities to the powerhouse and dam; and 
     
  • a 115 kV transmission line extending from the powerhouse substation 30.5 miles to the existing S.W. Bailey Substation.

 

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