Point Marion Lock and Dam
Point Marion Lock and Dam, previously known as Lock and Dam Number 8, is one of nine navigational structures on the Monongahela River between Pittsburgh, Pennsylvania and Fairmont, West Virginia. Maintained and built by the U.S. Army Corps of Engineers, the gated dam forms an upstream pool that is 11.2 miles (18.0 km) long, stretching to the base of the Morgantown Lock and Dam. It is located at river mile 90.5 (river kilometer 145.6).
| Point Marion Lock and Dam | |
|---|---|
 Looking downstream at Point Marion Lock and Dam. | |
| Location | Dunkard / Springhill townships, Greene County, near Point Marion, Pennsylvania |
| Coordinates | 39°43′38″N 79°54′39″W |
| Construction began | 1923 |
| Opening date | 1926 |
| Operator(s) | U.S. Army Corps of Engineers, Pittsburgh District |
| Dam and spillways | |
| Impounds | Monongahela River |
| Height | 15 ft (4.6 m) |
| Length | 638 ft (194 m) |
| Reservoir | |
| Total capacity | 11,500 acre⋅ft (14,200,000 m3) |
| Catchment area | 2,751 sq mi (7,130 km2) |
| Surface area | 704 acres (285 ha) |
There is one lock chamber on the left descending bank of the river at the dam, 84 feet (26 m) wide and 720 feet (220 m) long. The reservoir formed by the dam is also a municipal and industrial water supply.[1]
References
- "U.S. Army Corps of Engineers, Pittsburgh District- Point Marion Lock and Dam". Archived from the original on 1998-12-03. Retrieved 2009-03-02.
Dams of the Monongahela River | ||||
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