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El Atazar Dam

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Country  Spain
Status  Completed
Length  52.3 m (171.6 ft)
Address  28189, Madrid, Spain
Area  10.7 km²
Construction began  1968
Location  Community of Madrid
Height (foundation)  134 m (440 ft)
Creates  El Atazar Reservoir
Opened  1972
Province  Community of Madrid
El Atazar Dam
Similar  Pontón de la Oliva, Embalse de Valmayor, Patones De Arriba, Cueva del Reguerillo, La Jarosa Reservoir

Embalse el atazar phantom 3 advanced


El Atazar Dam is an arch dam built near Madrid, Spain on the Lozoya River, very close to where the Lozoya joins the Jarama. The curved design of the dam is optimum for the narrow gorge in which it was built to retain water in the reservoir. Arch dams are thin and require less material to construct than other dam types.

Contents

When the dam was built, the decision was made to use the dam to store and regulate water only and not to provide energy. Construction started on the dam in 1968 and finished in 1972.

Atazar dam in madrid spain


DesignEdit

The dam is 134 m (440 ft) high and 52.3 m (171.6 ft) wide at the foundation. The reservoir capacity is 424,000,000 m3 (344,000 acre feet). It is a double curvature concrete arch buttress design.

ProblemsEdit

Monitoring of the dam revealed abnormal movement. Although dams normally move, the left side of the El Atazar Dam was moving more than the right because a support built on the dam's right made that side less flexible. In 1977 a crack was noticed in the dam. By 1979 the crack had grown to 46 m (150 ft) in length and was repaired. Inspection in 1983 revealed that the settling in the foundations and the movements of the dam had caused fracturing in the rock, resulting in significantly increasing the foundation's permeability. The crack has been treated and since then the problems have abated.

References

El Atazar Dam Wikipedia


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