Toyotako Reservoir
| Reservoir Name | Toyotako |
| Dam Name | Koyagawa |
| River | Koyagawa |
| Country | Japan |
| Year | 1955 |
| Dam Height | 41 |
| Dam Length | 174 |
| Area(Sqkm) | 1.2 |
| Area(Polygonal) | 1.2 |
| Capital Expenditure | 43.6 |
| Depth(M) | 36.3 |
| Avg Displacement Of Water | 2655 |
| Catchment Area In Sqkm | 84 |
| Status | 2: Good |
| Longitude | 131.117917 |
| Latitude | 34.237083 |
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