Pensacola Dam
Dam in Mayes County, Oklahoma / From Wikipedia, the free encyclopedia
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This article is about a dam in Oklahoma that is often referred to as the Grand River Dam. For Grand River Dam in Ontario, see Caledonia Dam.
The Pensacola Dam, also known as the Grand River Dam, is a multiple-arch buttress dam located between the towns of Disney and Langley on the Grand River in Mayes County, Oklahoma. The dam is operated by the Grand River Dam Authority and creates Grand Lake o' the Cherokees. After decades of vision and planning, it was constructed between 1938 and 1940 for the purposes of hydroelectric power generation, flood control and recreation. It is Oklahoma's first hydroelectric power plant and is referred to as the longest multiple-arch dam in the world.[3][4][5]
Quick Facts Country, Location ...
Pensacola Dam | |
---|---|
Country | United States |
Location | Mayes County, near Disney and Langley, Oklahoma |
Coordinates | 36°28′19″N 95°01′57″W |
Status | In use |
Construction began | February 1938 |
Opening date | March 21, 1940 |
Construction cost | $21 million USD |
Dam and spillways | |
Impounds | Grand River |
Height | 150 ft (46 m) |
Length | Total: 6,565 ft (2,001 m) Multiple-arch section: 4,284 ft (1,306 m) Arches and spillways: 5,145 ft (1,568 m) |
Spillways | 3 |
Spillway type | Ogee-type, tainter gate-controlled |
Spillway capacity | 525,000 cu ft/s (14,900 m3/s) |
Reservoir | |
Creates | Grand Lake o' the Cherokees |
Total capacity | 1,672,000 acre⋅ft (2.062×109 m3) |
Surface area | 46,500 acres (18,800 ha) |
Maximum length | 66 mi (106 km) |
Normal elevation | 742 ft (226 m) (normal) |
Power Station | |
Operator(s) | Grand River Dam Authority |
Commission date | 1941 |
Turbines | 6 x 20 MW Francis-type |
Installed capacity | 120 MW |
Pensacola Dam | |
Architect | John Duncan Forsyth, W. R. Holway |
NRHP reference No. | 03000883[1][2] |
Added to NRHP | September 9, 2003 |
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