| Wadagawa Dam | |
| Location Map: | Japan |
| Coordinates: | 36.6546°N 137.0395°W |
| Country: | Japan |
| Location: | Tonami, Toyama Prefecture |
| Purpose: | Irrigation, flood control, power |
| Status: | O |
| Construction Began: | 1962 |
| Opening: | 1967 |
| Owner: | Toyama Prefecture |
| Dam Type: | Gravity |
| Dam Height: | 21m (69feet) |
| Dam Length: | 137m (449feet) |
| Dam Volume: | 23000m2 |
| Dam Crosses: | Wadagawa River |
| Res Capacity Total: | 3070000m2 |
| Res Capacity Active: | 1900000m2 |
| Plant Hydraulic Head: | 18.15m (59.55feet) |
| Plant Commission: | December 1968 |
| Plant Turbines: | 2 x 3.7 MW Kaplan-type |
| Plant Capacity: | 7.4 MW |
| Plant Annual Gen: | 40 GWh[1] |
The Wadagawa Dam is a gravity dam on the Wadagawa River (a tributary of the Shō River) in Tonami, Toyama Prefecture, Japan. It was constructed between 1962 and 1967. The dam has an associated 7.4 MW hydroelectric power station which was commissioned in 1968. Of the dams in the Shō River system, it is the furthest downstream.[2]