| Alpe Gera Dam | |
| Name Official: | Diga Alpe Gera |
| Location Map: | Italy |
| Coordinates: | 46.3144°N 9.9436°W |
| Country: | Italy |
| Location: | Sondrio |
| Construction Began: | 1958 |
| Opening: | 1964 |
| Dam Type: | Concrete gravity |
| Dam Height: | 1740NaN0 |
| Dam Length: | 5280NaN0 |
| Dam Volume: | 17000000NaN0 |
| Dam Elevation Crest: | 21280NaN0 |
| Dam Crosses: | Cormor |
| Spillway Capacity: | 620NaN0 |
| Res Capacity Total: | 681000000NaN0 |
| Res Capacity Active: | 627000000NaN0 |
| Res Elevation: | 21250NaN0 |
| Plant Capacity: | 35 MW |
The Alpe Gera Dam is a gravity dam on the Cormor River in a lateral valley of Valmalenco 170NaN0 northeast of Sondrio in the Lombardy region of Italy. It is 1740NaN0 tall and supports a 35 MW hydroelectric power station.[1]
The dam was constructed between 1958 and 1964 and is best known for the concrete placement techniques used during its construction. Instead of concrete being poured into conventional monoliths, it was poured in layers with a lean mix. Next, the concrete was settled with immersed vibrators and then contraction joints were cut into the layer. These methods were not only cost-saving but instrumental in the development of roller-compacted concrete in dam construction.[2] [3] [4]