Santa Maria de Aguiar dam
| Santa Maria de Aguiar dam | |||||
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| Coordinates | 40 ° 51 ′ 51 ″ N , 6 ° 53 ′ 17 ″ W | ||||
| Data on the structure | |||||
| Construction time: | 1976 to 1981 | ||||
| Height above foundation level : | 20 m | ||||
| Height of the structure crown: | 624 m | ||||
| Building volume: | 154,000 m³ | ||||
| Crown length: | 450 m | ||||
| Crown width: | 6 m | ||||
| Data on the reservoir | |||||
| Altitude (at congestion destination ) | 620 m | ||||
| Water surface | 1.1 km² | ||||
| Storage space | 5.12 million m³ | ||||
| Total storage space : | 5.4 million m³ | ||||
| Design flood : | 350 m³ / s | ||||
The Santa Maria de Aguiar dam ( Portuguese Barragem de Santa Maria de Aguiar ) is located in the central region of Portugal in the Guarda district . It is located in the international nature reserve Douro (Portuguese Parque Natural do Douro Internacional ) and dams the Aguiar , a left (southern) tributary of the Douro to a reservoir (Portuguese Albufeira da Barragem de Santa Maria de Aguiar ). The small town of Figueira de Castelo Rodrigo is about six kilometers northwest of the dam.
The project to build the dam began in 1976. The construction was completed in 1981. In addition to the drinking water supply, the dam is also used for irrigation. It is owned by the municipality ( Câmara Municipal ) of Figueira de Castelo Rodrigo.
Barrier structure
The barrier structure is a dam with a height of 20 m above the foundation level . The top of the dam is at an altitude of 624 m above sea level . The length of the dam crest is 450 m and its width 6 m. The volume of the dam is 154,000 m³.
The dam has both a bottom outlet and a flood relief . A maximum of 4.8 m³ / s can be discharged via the bottom outlet, and a maximum of 155 m³ / s via the flood discharge. The design flood is 350 m³ / s; the probability of this event occurring has been determined to be once in 500 years.
Reservoir
With the normal storage target of 620 m (maximum 621.28 m at high water), the reservoir extends over an area of around 1.1 km² and holds 5.4 million m³ of water - of which 5.12 million m³ can be used. The minimum storage target is 612 m.