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Charleroi Locks & Dam facts for kids
| Charleroi Lock and Dam | |
|---|---|
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| Location | Charleroi, Pennsylvania and Monessen, Pennsylvania |
| Coordinates | 40°08′46″N 79°54′00″W / 40.1462°N 79.9000°W |
| Construction began | 1931 |
| Opening date | 1932 |
| Operator(s) | U.S. Army Corps of Engineers, Pittsburgh District |
| Dam and spillways | |
| Impounds | Monongahela River |
Charleroi Locks & Dam, officially known as Locks & Dam 4 by the US Army Corps of Engineers, 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 for 19.7 miles to the Maxwell Lock & Dam.
The dam is located at mile 41.5 on the river. Unlike many of the river's single lock structure, the Charleroi facility features two working locks; this addition took place during a 1967 rehabilitation project.