| Hongo Dam | |
| Location: | Aomori Prefecture, Japan |
| Dam Length: | 84.5m |
| Dam Height: | 21.8m |
| Construction Began: | 1950 |
| Opening: | 1956 |
| Res Capacity Total: | 200 thousand cubic meters |
| Res Catchment: | 7.8 sq. km |
| Res Surface: | 4 hectares |
| Coordinates: | 40.6911°N 140.6369°W |
| Location Map: | Japan |
Hongo Dam is an earthfill dam located in Aomori Prefecture in Japan. The dam is used for irrigation. The catchment area of the dam is 7.8 km2. The dam impounds about 4 ha of land when full and can store 200 thousand cubic meters of water. The construction of the dam was started on 1950 and completed in 1956.[1]