15 De Septiembre
| Dam Name | 15 de Septiembre |
| River | Lempa |
| Main Basin | Lempa |
| Country | El Salvador |
| Year | -99 |
| Dam Height | 50 |
| Dam Length | -99 |
| Area(Sqkm) | 18 |
| Area(Polygonal) | 18 |
| Capital Expenditure | 380 |
| Depth(M) | 21.1 |
| Avg Displacement Of Water | 385929 |
| Catchment Area In Sqkm | 17087 |
| Main Usage | Hydroelectricity |
| Status | 3: Fair |
| Longitude | -88.55875 |
| Latitude | 13.62375 |
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