Long Lake Dam is a concrete gravity dam on the
Spokane River, between
Lincoln County and
Stevens County about northwest of
Spokane in eastern
Washington
Washington commonly refers to:
* Washington (state), United States
* Washington, D.C., the capital of the United States
** A metonym for the federal government of the United States
** Washington metropolitan area, the metropolitan area centered on ...
. It forms
Long Lake (Washington), a long reservoir, and has a hydroelectric generating capacity of 71
megawatt
The watt (symbol: W) is the unit of Power (physics), power or radiant flux in the International System of Units, International System of Units (SI), equal to 1 joule per second or 1 kg⋅m2⋅s−3. It is used to quantification (science), ...
s. The dam was built by Washington Water Power (now
Avista Utilities
Avista Corporation is an American energy company which generates and transmits electricity and distributes natural gas to residential, commercial, and industrial customers. Approximately 1,550 employees provide electricity, natural gas, and other ...
), which operates five other dams along the Spokane.
Upon its completion in 1915, Long Lake Dam completely blocked
salmon
Salmon () is the common name for several list of commercially important fish species, commercially important species of euryhaline ray-finned fish from the family (biology), family Salmonidae, which are native to tributary, tributaries of the ...
migrations to the upper portions of the Spokane River watershed, although much larger
Grand Coulee Dam
Grand Coulee Dam is a concrete gravity dam on the Columbia River in the U.S. state of Washington, built to produce hydroelectric power and provide irrigation water. Constructed between 1933 and 1942, Grand Coulee originally had two powerhous ...
on the
Columbia River
The Columbia River (Upper Chinook: ' or '; Sahaptin: ''Nch’i-Wàna'' or ''Nchi wana''; Sinixt dialect'' '') is the largest river in the Pacific Northwest region of North America. The river rises in the Rocky Mountains of British Columbia, C ...
extirpated salmon from the entire Spokane basin by 1942.
Hydroelectric Power Plant
The Long Lake Hydroelectric Power Plant was also built in 1915. It was listed on the
National Register of Historic Places
The National Register of Historic Places (NRHP) is the United States federal government's official list of districts, sites, buildings, structures and objects deemed worthy of preservation for their historical significance or "great artistic v ...
in 1988. The listing included one
contributing building and five
contributing structures
In the law regulating historic districts in the United States, a contributing property or contributing resource is any building, object, or structure which adds to the historical integrity or architectural qualities that make the historic distric ...
on in
Lincoln County, Washington and
Stevens County, Washington
Stevens County is a county located in the U.S. state of Washington along the Canada–US border. At the 2020 census, its population was 46,445. As of July 2021, the population was estimated to be 47,426. The county seat and largest city is Co ...
.
It was built by the
Washington Water Power Co.[ With ]
See also
*
List of dams in the Columbia River watershed
*
Little Falls Hydroelectric Power Plant
The Little Falls Hydroelectric Power Plant, on the Spokane River near Reardan, Washington, about west of Spokane was built during 1907–10. It was listed on the National Register of Historic Places in 1988. The listing included one contribu ...
, also built by the Washington Water Power Co. on the Spokane River and NRHP-listed
References
External links
*
Historic American Engineering Record (HAER) documentation, filed under Ford, Stevens County, WA:
**
**
Buildings and structures in Lincoln County, Washington
Buildings and structures in Stevens County, Washington
Historic American Engineering Record in Washington (state)
Hydroelectric power plants in Washington (state)
United States power company dams
Dams on the National Register of Historic Places in Washington (state)
Dams completed in 1915
Energy infrastructure completed in 1915
Dams on the Spokane River
National Register of Historic Places in Lincoln County, Washington
National Register of Historic Places in Stevens County, Washington
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