Glines Canyon Dam
Glines Canyon Dam, also known as Upper Elwha Dam, 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.
| Glines Canyon Dam | |
|---|---|
Glines Canyon Dam | |
Location of Glines Canyon Dam in Washington (state) Glines Canyon Dam (the United States) | |
| Location | On Elwha River, along Olympic Hot Springs Road, about 11 miles (18 km) southwest of Port Angeles, in Olympic National Park, Clallam County, Washington, USA |
| Coordinates | 48°00′07″N 123°36′00″W |
| Construction began | 1925 |
| Opening date | 1927 |
| Demolition date | 2014 |
| Built by | Thebo, Starr, & Anderson Inc. |
| Designed by | P.M. Thebo; W.B. McMillan; W.A. Whitmire; H.R. Stevens; H. Schorer |
| Dam and spillways | |
| Impounds | Elwha River |
| Height | 210 ft (64 m) |
| Reservoir | |
| Creates | Lake Mills |
| Total capacity | 40,500 acre⋅ft (50,000,000 m3) |
| Surface area | 415 acres (168 ha) |
| Power Station | |
| Installed capacity | 13.3 MW |
Glines Canyon Hydroelectric Power Plant | |
U.S. National Register of Historic Places | |
| Area | 7 acres (2.8 ha) |
| Architectural style | Classical Revival |
| MPS | Hydroelectric Power Plants in Washington State, 1890--1938 MPS |
| NRHP reference No. | 88002742 |
| Added to NRHP | December 15, 1988 |
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 2014 as part of the Elwha River ecosystem restoration project; as of 2015 it is the tallest dam ever to be intentionally breached. The Glines Canyon Dam was the largest dam removal ever.
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