Idanha
| Dam Name | Idanha |
| River | Ponsul |
| Near City | Castelo Branco |
| Administration City | Castelo Branco |
| Country | Portugal |
| Year | 1949 |
| Dam Height | 54 |
| Dam Length | 140 |
| Area(Sqkm) | 3.4 |
| Area(Polygonal) | 3.4 |
| Capital Expenditure | 77.8 |
| Depth(M) | 22.9 |
| Avg Displacement Of Water | 3210 |
| Catchment Area In Sqkm | 362 |
| Main Usage | Irrigation |
| Status | 3: Fair |
| Longitude | -7.197917 |
| Latitude | 39.949583 |
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