Aldeadávila Dam

Aldeadávila Dam
Aldeadávila Dam in 2010
Official namePresa de Aldeadávila
Locationnear Aldeadávila de la Ribera, Province of Salamanca, Spain
Coordinates41°12′42″N 6°41′08″W / 41.21167°N 6.68556°W / 41.21167; -6.68556
Construction began1956
Opening date1962
Construction costUS$60,000,000 in 1962
Owner(s)Iberdrola
Dam and spillways
Type of damConcrete arch-gravity
ImpoundsDouro River
Height140 metres (460 ft)
Length250 metres (820 ft)
Spillway typeService, chute
Spillway capacity11,700 cubic metres (410,000 cu ft) per second
Reservoir
CreatesAldeadávila Reservoir
Total capacity114,800,000 m3 (93,100 acre⋅ft)
Active capacity56,600,000 m3 (45,900 acre⋅ft)
Surface area3.64 km2 (1.41 sq mi)
Power Station
Operator(s)Iberdrola
Commission dateAldeadávila I : 1962
Aldeadávila II : 1986
Turbines6 x 119.7 MW Francis turbines
2 x 210.5 MW Francis pump-turbines
Installed capacity1,139.2 MW (1,527,700 hp)

The Aldeadávila Dam is a Spanish concrete arch-gravity dam, straddling the border between Spain and Portugal on the Duero River (Douro in Portuguese). The nearest town is Aldeadávila de la Ribera in the Province of Salamanca, about 11.3 kilometres (7.0 mi) to the east. The nearest Portuguese town is Fornos in Bragança District, about 8 kilometres (5.0 mi) to the southwest. The Portuguese side of the river around the dam site lies within the Arribes del Duero Natural Park.