Twelve Mile Creek Site M-1
| Dam Name | Twelve Mile Creek Site M-1 |
| River | Twelve Mile Creek |
| Administration City | Iowa |
| Country | United States |
| Year | 1983 |
| Dam Height | 20 |
| Dam Length | 640 |
| Area(Sqkm) | 2 |
| Area(Polygonal) | 2 |
| Capital Expenditure | 33.6 |
| Depth(M) | 16.8 |
| Avg Displacement Of Water | 429 |
| Catchment Area In Sqkm | 63 |
| Main Usage | Water supply |
| Status | 2: Good |
| Longitude | -94.257917 |
| Latitude | 41.057917 |
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