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Claerwen
Reservoir in Wales / From Wikipedia, the free encyclopedia
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The Claerwen reservoir and dam in Powys, Wales, were the last additions to the Elan Valley Reservoirs system built to provide water for the increasing water demand of the city of Birmingham and the West Midlands. The dam is built mainly of concrete, with the exterior dam face in dressed stone. The dam is a gravity dam built upon solid rock foundations as the pressure of the reservoir behind should be in equilibrium with the total weight of the dam itself thus causing complete stability.[citation needed]
Claerwen Reservoir | |
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Location | Wales |
Coordinates | 52°16′20″N 3°41′20″W |
Type | Reservoir |
Basin countries | United Kingdom |
Surface area | 3.688 km2 (1.424 sq mi) |
The Claerwen dam was finished in 1952 and was given a late Victorian effect so that it blended in with the earlier dams in the valley. It was necessary to employ the services of Italian stonemasons as British ones were still at work in London during the post-war rebuilding process of the late 1940s.
![Thumb image](http://upload.wikimedia.org/wikipedia/commons/thumb/c/c9/Claerwen_Dam.jpg/640px-Claerwen_Dam.jpg)
The dam took six years to complete and was almost twice the size of the other dams in the Elan valley. The Claerwen reservoir is almost the size of all the other reservoirs in the Elan Valley system combined. Officially commissioned by Queen Elizabeth II in 1952, it was one of her first royal engagements as monarch.
Water from the reservoir flows via an underground aqueduct to the Caban-coch reservoir from which it is abstracted through a gravity aqueduct to Birmingham.[1]