Santa Luzia Dam

Santa Luzia Dam

Santa Luzia Dam
Location of Santa Luzia Dam in Portugal
Official name Barragem de Santa Luzia
Location municipality Pampilhosa da Serra, Coimbra District, Portugal
Coordinates 40°5′23.2″N 7°51′28.8″W / 40.089778°N 7.858000°W / 40.089778; -7.858000Coordinates: 40°5′23.2″N 7°51′28.8″W / 40.089778°N 7.858000°W / 40.089778; -7.858000
Status Operational
Construction began 1930
Opening date 1942
Dam and spillways
Type of dam Concrete arch dam
Impounds Unhais
Height 76 metres (249 ft)
Length 115 metres (377 ft)
Width (crest) 2.5 metres (8 ft 2 in)
Dam volume 80,000 m3 (2,800,000 cu ft)
Reservoir
Creates Santa Luzia Reservoir
Total capacity 53,700,000 m3 (1.90×109 cu ft)
Surface area 2.46 km2 (0.95 sq mi)
Power station
Commission date 1942
Turbines 4 x 8 MW Pelton-type
Installed capacity 32 MW
Annual generation 55 GWh
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Santa Luzia Dam (Portuguese: Barragem de Santa Luzia) is a concrete arch dam on the Unhais, a northern tributary of the Zêzere River, located in the municipality Pampilhosa da Serra, in Coimbra District, Portugal. The dam was constructed between 1930 and 1942[1] and was designed by André Coyne.[2]

Design

Santa Luzia Dam is a 76 m tall and 115 m long arch dam. The volume of the dam is 80.000 m³. The dam contains 2 crest spillways and one bottom outlet. At full reservoir level the reservoir of the dam (Portuguese: Albufeira da Barragem de Santa Luzia) has a surface area of 2.46 km² and its total capacity is 53.7 Mio m³.[1]

The concrete of the dam is affected by concrete swelling, caused by an alkali–silica reaction, that leads to tensions and cracks in the concrete.[3][4]

Power plant

The power plant is one of the smaller hydroelectric power stations in Portugal with a nameplate capacity of 32 MW. Its average annual generation is 55 Mio. kWh. The power station contains four Pelton turbine-generators.[1]

See also

References

  1. 1 2 3 "SANTA LUZIA DAM". Comissão Nacional Portuguesa de Grandes Barragens (CNPGB). Retrieved 2014-11-09.
  2. ↑ "Santa Luzia Dam". Structurae International Database for Civil and Structural Engineering. Retrieved 2014-11-09.
  3. ↑ "RELIABILITY OF ARCH DAMS SUBJECT TO CONCRETE SWELLING" (PDF). www.xitizap.com. pp. 10–11. Retrieved 2014-11-09.
  4. ↑ "A REVIEW AND ANALYSIS OF AAR-EFFECTS IN ARCH DAMS" (PDF). www.xitizap.com. p. 4. Retrieved 2014-11-09.
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