Alsa
| Dam Name | Alsa |
| River | Torina |
| Near City | San Miguel de Aguayo |
| Administration City | Cantabria |
| Country | Spain |
| Year | 1921 |
| Dam Height | 49 |
| Dam Length | 190 |
| Area(Sqkm) | 0.6 |
| Area(Polygonal) | 0.6 |
| Capital Expenditure | 22.9 |
| Depth(M) | 38.2 |
| Avg Displacement Of Water | 231 |
| Catchment Area In Sqkm | 18 |
| Main Usage | Hydroelectricity |
| Status | 2: Good |
| Longitude | -3.99875 |
| Latitude | 43.09375 |
List all Dams and Reservoirs