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Swan Falls Dam

From Wikipedia, the free encyclopedia

Swan Falls Dam
LocationAda / Owyhee counties, Idaho
Coordinates43°14′36″N 116°22′46″W / 43.24333°N 116.37944°W / 43.24333; -116.37944
Opening date1901[1]
Operator(s)Idaho Power Company
Dam and spillways
ImpoundsSnake River
Height107 feet (33 m)[2]
Length1,150 feet (350 m)[2]
Total capacity7,425 acre-feet (9,159,000 m3)[2]
Catchment area41,900 sq mi (108,520 km²)[2]
Surface area1,525 acres (6.17 km²)[2]
Swan Falls Dam and Power Plant
Area2 acres (0.81 ha)
ArchitectWiley, A.J.
NRHP reference No.76000667 [3]
Added to NRHPJuly 06, 1976

Swan Falls Dam is a concrete gravity type hydroelectric dam on the Snake River, in the U.S. state of Idaho. It is located near Murphy, Idaho.

The dam was built in 1901 to generate electricity. It is the oldest hydroelectric dam on the Snake River. In the 1990s the original power plant was replaced with a new one.[1] The dam was built with fish passage facilities, but they proved to be very poor in performance. For this reason, among others, the C. J. Strike Dam, built upriver from Swan Falls Dam in the early 1950s, was not equipped with fish passage facilities. Thus the two dams combined to become the first artificial barrier to anadromous fish migration up the Snake River. Today Hells Canyon Dam is the first total barrier to fish migration on the Snake.[4]

The dam and its reservoir lie within the Snake River Birds of Prey National Conservation Area.[1] The dam and power plant were listed in the National Register of Historic Places.

YouTube Encyclopedic

  • 1/1
  • Swan Falls 5-14-2011


See also


  1. ^ a b c Swan Falls Dam, Idaho Power
  2. ^ a b c d e Swan Falls Dam, NPDP Dam Directory
  3. ^ "National Register Information System". National Register of Historic Places. National Park Service. March 13, 2009.
  4. ^ Middle Snake Subbasin Plan, Northwest Power and Conservation Council

Further reading

This page was last edited on 30 March 2021, at 18:01
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