Puentes Viejas
| Dam Name | Puentes Viejas |
| River | Lozoya |
| Near City | Puentes Viejas |
| Administration City | Madrid |
| Country | Spain |
| Year | 1940 |
| Dam Height | 66 |
| Dam Length | 324 |
| Area(Sqkm) | 1.7 |
| Area(Polygonal) | 1.7 |
| Capital Expenditure | 49.2 |
| Depth(M) | 28.9 |
| Avg Displacement Of Water | 2329 |
| Catchment Area In Sqkm | 664 |
| Main Usage | Water supply |
| Status | 2: Good |
| Longitude | -3.572917 |
| Latitude | 40.994583 |
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