Glines Canyon Dam
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Glines Canyon Dam (also known as Upper Elwha Dam[2]), built in 1927, was a 210-foot (64 m) high concrete arch dam built on the Elwha River within Olympic National Park, Clallam County, Washington.
It was located 13 miles (21 km) upstream from the mouth of the Elwha River at the Strait of Juan de Fuca, and about 8 miles upriver from the Elwha Dam. It impounded Lake Mills reservoir. The dam was demolished in 2012 as part of the Elwha River ecosystem restoration project.
Contents
History
The dam was built privately to generate electricity for industries and major military installations on the Olympic Peninsula, including lumber and paper mills in Port Angeles.
Effects of dam on river habitat and area ecology
Lacking passage for migrating salmon, Glines Canyon Dam blocked access by anadromous salmonids[3] to the upper 38 miles (61 km) of mainstem habitat and more than 30 miles (48 km) of tributary habitat. The Elwha River watershed once supported salmon runs of more than 400,000 adult returns on more than 70 miles (110 km) of river habitat. By the early 21st-century, fewer than 4,000 adult salmon returned each year.
Habitat restoration
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Numerous groups lobbied Congress to remove the two dams on the river and restore the habitat of the river and its valley. The Elwha River Ecosystem and Fisheries Restoration Act of 1992 authorized the US Federal Government to acquire the Elwha Dam and Glines Canyon Dam hydroelectric power projects for decommissioning and demolition for habitat restoration.
The Elwha Ecosystem Restoration project began removal of the dam, along with nearby Elwha Dam, in September 2011 and concluded on August 26, 2014. Now that the dam has been removed, the area that was under Lake Mills is being revegetated and its banks secured to prevent erosion and to speed up ecological restoration.
Gallery
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Lake Mills.jpg
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Glinescanyondam1.jpg
See also
References
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- Grossman, Elizabeth (2002). Watershed: The Undamming of America, Basic Books, ISBN 1-58243-108-6.
External links
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Wikimedia Commons has media related to Glines Canyon Dam. |
- Glines Canyon Dam Removal Process - animation
- Glines Canyon Dam webcam and time lapse movie of removal project
- "Demolition dam: Why dismantle a huge river barrier?", BBC video
- Elwha River Restoration, National Park Service
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- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ U.S. Geological Survey Geographic Names Information System: Upper Elwha Dam
- ↑ Grossman 2002, p. 155
- Pages with broken file links
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- Commons category link is defined as the pagename
- Former dams
- Dams in Washington (state)
- Demolished buildings and structures in Washington (state)
- Demolished power stations
- Buildings and structures in Olympic National Park
- Buildings and structures in Clallam County, Washington
- Hydroelectric power plants in Washington (state)
- Dams on the National Register of Historic Places in Washington (state)
- Dams completed in 1927
- Energy infrastructure completed in 1927
- Buildings and structures demolished in 2014
- Historic districts on the National Register of Historic Places in Washington (state)
