The Alpe Gera Dam is a gravity dam on the Cormor River in a lateral valley of Valmalenco 17 km (11 mi) northeast of Sondrio in the Lombardy region of Italy. It is 174 m (571 ft) tall and supports a 35 MW hydroelectric power station.[1]

Alpe Gera Dam
Location of Alpe Gera Dam in Italy
Official name	Diga Alpe Gera
Country	Italy
Location	Sondrio
Coordinates	46°18′52″N 09°56′37″E
Construction began	1958
Opening date	1964
Dam and spillways
Type of dam	Concrete gravity
Impounds	Cormor
Height	174 m (571 ft)
Length	528 m (1,732 ft)
Elevation at crest	2,128 m (6,982 ft)
Dam volume	1,700,000 m3 (2,223,516 cu yd)
Spillway capacity	62 m3/s (2,190 cu ft/s)
Reservoir
Total capacity	68,100,000 m3 (55,210 acre⋅ft)
Active capacity	62,700,000 m3 (50,832 acre⋅ft)
Normal elevation	2,125 m (6,972 ft)
Power Station
Installed capacity	35 MW

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]

See also

• List of tallest dams in the world

References

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