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REGISTRO ITALIANO DIGHE

Ufficio Periferico di Cagliari

versione italiana


 

Almendra Dam

 

 

Country

Spain

River

Rio Tormes

Dam type

The barrier is formed by

- a main double curvature concrete arch dam with a small concrete gravity dam on the right side of the arch, and the spillway on the left (maximum height of the dam 202 m, arch length 567.20 m, total length 1,074.70 m);

- a concrete buttress-type wing dam on the left side of the main dam (maximum height 33 m, length 1,244 m);

- a rockfill dam about 500 m distant from the right bank of the main dam (maximum height 35 m, length 1,673 m).

Construction period

1965-1970

Structural height

202 m

Gross storage capacity

2,648 Mm

Active storage capacity

2,475 Mm

Volume of the dam

Main dam: volume of the cupola 1,672,510 m; total 2,058,080 m;

Buttress dam on the left side: 189,883 m;

Rockfill dam near the right bank: 754,644 m.

Maximum controllable water surface

730.00 m a.s.l.

Maximum water surface

731.50 m a.s.l.

Crest elevation

732.00 m a.s.l.

Crest length

Main dam: 1,074.70 m;

Left buttress-type wing dam: 1,244 m;

Right rockfill dam: 1,673 m.

Maximum discharge capacity

Spillway: 3,000 m/s;

Intermediate outlets: 900 m/s;

Bottom outlets: 240 m/s.

Nameplate capacity of the powerplant

810 MW (six 135 MW reversible units are installed in the Villarino powerhouse and generate a capacity of 1,376 GWh per year)

Notes

Almendra dam is the highest in Spain

 

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Ultimo aggiornamento: 4 agosto 2005