Monte da Rocha dam

from Wikipedia, the free encyclopedia
Monte da Rocha dam
Tributaries: Sado
Drain: Sado
Monte da Rocha dam (Portugal)
Monte da Rocha dam
Coordinates 37 ° 43 '40 "  N , 8 ° 17' 16"  W Coordinates: 37 ° 43 '40 "  N , 8 ° 17' 16"  W.
Data on the structure
Construction time: 1965 to 1972
Height above valley floor: 51 m
Height above foundation level : 55 m
Height of the structure crown: 141.4 m
Building volume: 1.81 million m³
Crown length: 2000 m
Crown width: 10 m
Data on the reservoir
Altitude (at congestion destination ) 137 m
Water surface 11 km²dep1
Storage space 99.5 million m³
Total storage space : 104.5 million m³
Design flood : 1500 m³ / s

The Monte da Rocha dam ( Portuguese Barragem do Monte da Rocha ) is located in the Alentejo region of Portugal in the Beja district . It dams the Sado to a reservoir (Port. Albufeira da Barragem do Monte da Rocha ). The small town of Castro Verde is about ten kilometers southeast of the dam.

The project to build the dam began in 1965. The construction was completed in 1972. In addition to irrigation, the dam also provides drinking water. It is owned by the Associação de Regantes e Beneficiários de Campilhas e Alto Sado .

Barrier structure

The barrier structure consists of a dam with a clay core. The height is 55 m above the foundation level (51 m above the river bed). The top of the dam is at a height of 141.4 m above sea level . The length of the dam crest is 2000 m and its width 10 m. The volume of the dam is 1.81 million m³.

The dam has both a bottom outlet and a flood relief . A maximum of 80 m³ / s can be discharged via the bottom outlet, and a maximum of 260 m³ / s via the flood discharge. The design flood is 1500 m³ / s; the probability of this event occurring has been determined to be once every 1,000 years.

Reservoir

With a normal storage target of 137 m (maximum 138.45 m at high water), the reservoir extends over an area of ​​around 11 km² and holds 104.5 million m³ of water - 99.5 million m³ of this can be used. The minimum stowage destination is 113.5 m.

See also

Individual evidence

  1. a b c d MONTE DA ROCHA DAM. APA Barragens de Portugal, accessed December 14, 2014 .
  2. a b c d BARRAGEM DE MONTE DA ROCHA. (PDF 8.1 MB p. 1) (No longer available online.) Sistema de Informação do Regadio, archived from the original on September 29, 2014 ; Retrieved December 14, 2014 (Portuguese).
  3. MONTE DA ROCHA. APA Barragens de Portugal, accessed December 14, 2014 .