Alder
| Dam Name | Alder |
| River | Nisqually River |
| Administration City | Washington |
| Country | United States |
| Year | 1945 |
| Dam Height | 101 |
| Dam Length | 453 |
| Area(Sqkm) | 10 |
| Area(Polygonal) | 10 |
| Capital Expenditure | 297.5 |
| Depth(M) | 29.8 |
| Avg Displacement Of Water | 31086 |
| Catchment Area In Sqkm | 758 |
| Main Usage | Hydroelectricity |
| Status | 2: Good |
| Longitude | -122.312083 |
| Latitude | 46.80125 |
List all Dams and Reservoirs