Tridelphia Lake Reservoir
| Reservoir Name | Tridelphia Lake |
| Dam Name | Brighton Dam |
| River | Patuxent River |
| Administration City | Maryland |
| Country | United States |
| Year | 1943 |
| Dam Height | 24 |
| Dam Length | 303 |
| Area(Sqkm) | 2.6 |
| Area(Polygonal) | 2.6 |
| Capital Expenditure | 33.3 |
| Depth(M) | 12.8 |
| Avg Displacement Of Water | 1886 |
| Catchment Area In Sqkm | 204 |
| Main Usage | Water supply |
| Status | 2: Good |
| Longitude | -77.007917 |
| Latitude | 39.194583 |
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