Vatnedalen Hoveddam
| Dam Name | Vatnedalen Hoveddam |
| River | Otra |
| Near City | Kristiansand |
| Country | Norway |
| Year | 1984 |
| Dam Height | 120 |
| Dam Length | -99 |
| Area(Sqkm) | 11.1 |
| Area(Polygonal) | 11.1 |
| Capital Expenditure | 1100 |
| Depth(M) | 99.1 |
| Avg Displacement Of Water | 7102 |
| Catchment Area In Sqkm | 243 |
| Main Usage | Hydroelectricity |
| Status | 3: Fair |
| Longitude | 7.362917 |
| Latitude | 59.46125 |
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