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
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 m^3 (2,800,000 cu ft)
Reservoir
Creates	Santa Luzia Reservoir
Total capacity	53,700,000 m^3 (1.90×10^9 cu ft)
Surface area	2.46 km^2 (0.95 sq mi)
Power Station
Commission date	1942
Turbines	4 x 8 MW Pelton-type
Installed capacity	32 MW
Annual generation	55 GWh

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

• List of power stations in Portugal

References

1. "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.

External links

• "Barragem de Sta. Luzia". Wikimapia. Retrieved 2014-11-09.
• "Barragem de Santa Luzia 2013". Youtube. Retrieved 2014-11-09.
• "Barragem de Santa Luzia - descarga de topo". Youtube. Retrieved 2014-11-09.