Lake Ouachita Reservoir
| Reservoir Name | Lake Ouachita |
| Dam Name | Blakely Mountain Dam |
| River | Ouachita River |
| Administration City | Arkansas |
| Country | United States |
| Year | 1953 |
| Dam Height | 73 |
| Dam Length | 335 |
| Area(Sqkm) | 144.1 |
| Area(Polygonal) | 144.1 |
| Capital Expenditure | 4638.8 |
| Depth(M) | 32.2 |
| Avg Displacement Of Water | 36504 |
| Catchment Area In Sqkm | 2842 |
| Main Usage | Hydroelectricity |
| Status | 2: Good |
| Longitude | -93.195417 |
| Latitude | 34.574583 |
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