| Komaki Dam | |
| Location Map: | Japan |
| Coordinates: | 36.5567°N 137.0083°W |
| Country: | Japan |
| Location: | Shogawa, Toyama Prefecture |
| Purpose: | Power |
| Status: | O |
| Construction Began: | 1925 |
| Opening: | 1930 |
| Dam Type: | Arch gravity |
| Dam Height: | 79.2m (259.8feet) |
| Dam Length: | 300.8m (986.9feet) |
| Dam Volume: | 289000m2 |
| Dam Crosses: | Shō River |
| Spillway Type: | Crest overflow, 17 tainter gates |
| Res Capacity Total: | 37957000m2 |
| Res Capacity Active: | 18858000m2 |
| Res Catchment: | 1100km2 |
| Res Surface: | 145ha |
| Plant Hydraulic Head: | 68.46m (224.61feet) |
| Plant Operator: | Kansai Electric Power Co., Inc. |
| Plant Commission: | 5 November 1930 |
| Plant Turbines: | 4 x 22.55 MW Francis-type |
| Plant Capacity: | 90.2 MW[1] |
The Komaki Dam is an arch-gravity dam on the Shō River about 2.5km (01.6miles) southeast of Shogawa in Toyama Prefecture, Japan. It was constructed between 1925 and 1930. The dam has an associated 90.2 MW hydroelectric power station which was commissioned in 1930. Of the nine dams on the Shō River, it is the second-furthest downstream.[2]