Separating dam at Caban Coch

The Elan Valley Reservoirs are a chain of man-made lakes in Wales, west of Rhayader, (also known as the "Welsh Lake District"), using the rivers Elan and Claerwen. The reservoirs are Claerwen, Craig Goch, Pen-y-Gareg, Careg-ddu, and Caban Coch. Image File history File linksMetadata Caban_Coch,_Elan_Valley. ... Image File history File linksMetadata Caban_Coch,_Elan_Valley. ... For an explanation of often confusing terms such as Great Britain, Britain, United Kingdom and England, see British Isles (terminology). ... Rhayader (Welsh: Rhaeadr Gwy) is a town in the traditional county of Radnorshire, Powys, mid Wales, lying on the River Wye. ... The Murray River in Australia. ... Elan 2005 Elan (born Elan Sara DeFan the 1st of March 1983, Guadalajara Mexico) is known for being one of the most successful independent Latin artists of the moment. ... Downstream Face Of Claerwen Dam Claerwen reservoir Claerwen Reservoir and Dam The Claerwen Reservoir and Dam were the last editions to the Elan Valley Reservoirs system built to provide water for the increasingly demanding City of Birmingham. ... Downstream Face Of Claerwen Dam Claerwen reservoir Claerwen Reservoir and Dam The Claerwen Reservoir and Dam were the last editions to the Elan Valley Reservoirs system built to provide water for the increasingly demanding City of Birmingham. ...

The reservoirs were constructed early in the 20th century to supply clean water to the Birmingham area, by gravity feed along an aquaduct with a gradient of 1 in 2,300. Before the construction of the dams, the Elan Valley Railway was built to all dam sites, from a junction at Rhayader. The railway was also built along the dams themselves at varying heights, on wooden scaffolding supported by concrete parapets. The railway itself went as far as a never completed Dolymynach dam lower down the valley from the Claerwen dam, as it had to be built at the same time as the other dams as the lake would have flooded the construction otherwise, however, it was never needed, and the Claerwen dam used road transport only, being opened in 1952. Gelmersee is a reservoir in Switzerland. ... (19th century - 20th century - 21st century - more centuries) Decades: 1900s 1910s 1920s 1930s 1940s 1950s 1960s 1970s 1980s 1990s As a means of recording the passage of time, the 20th century was that century which lasted from 1901–2000 in the sense of the Gregorian calendar (1900–1999 in the... Drinking water Drinking water is water that is intended to be drunk by humans. ... The city from above Centenary Square. ... Gravity is a force of attraction that acts between bodies that have mass. ... This article is about the structure aqueduct, for the racecourse see Aqueduct Racetrack. ... In the above two images, the scalar field is in black and white, black representing higher values, and its corresponding gradient is represented by blue arrows. ... Downstream Face Of Claerwen Dam Claerwen reservoir Claerwen Reservoir and Dam The Claerwen Reservoir and Dam were the last editions to the Elan Valley Reservoirs system built to provide water for the increasingly demanding City of Birmingham. ...

The navvies lived in a village constructed from wooden huts. This later became the permanent Elan Village, the original settlement had a guard to prevent the illegal importing of liquor.

They played an important role in World War II when the 35 ft. high Nant-y-Gro dam was used by Barnes Wallis to test his idea of detonating explosives against a dam wall in order to breach it. These experiments culminated in the Dambusters breaching of the dams in the Ruhr Valley. The remains of the breached Nant-y-Gro dam can still be seen today in the same state as it was left in 1942, although nature took over, and trees make it difficult to locate the dam. Combatants Allies: Poland, British Commonwealth, France/Free France, Soviet Union, United States, China, and others Axis Powers: Germany, Italy, Japan, Hungary, Bulgaria, Romania, and others Casualties Military dead:17 million Civilian dead:33 million Total dead:50 million Military dead:8 million Civilian dead:4 million Total dead:12 million... Sir Barnes Neville Wallis Sir Barnes Neville Wallis, CBE, FRS, RDI, commonly known as Barnes Wallis, (September 26, 1887 – October 30, 1979) was a British scientist, engineer and inventor. ... Operation Chastise was the official name for the attacks on German dams on May 17, 1943 in World War II using a specially developed bouncing bomb. The attack was carried out by Royal Air Force No. ... Geography Map of the Ruhr Area The Ruhr Area (German Ruhrgebiet or, colloquially, Ruhrpott) is a metropolitan area in North Rhine-Westphalia, Germany, consisting of a number of large industrial cities bordered by the rivers Ruhr to the south, Rhine to the west, and Lippe to the north. ...

In the 1970's it was proposed that the Craig Goch reservoir should be substantially increased in size with a new and higher down-stream dam together with an upstream dam to contain water that would otherwise have flowed down the Ystwyth valley. The proposals were eventually abandoned in the face of reducing projections for industrial water demand and an increasing awareness of the environmental problems that such an expansion might create. Da River Ystwyth (Afon Ystwyth in Welsh) iz a river ov mid west Wales. ... In politics and other non-technical contexts, nature or (the) (natural) environment often refers to that part of the natural world that people deem important or valuable, for any reason — economic, aesthetic, philosophical, hedonistic, sentimental, etc. ...

When construction of the dams was complete, most of the Elan Valley "navvies" (construction workers) moved on to the Derwent Valley in Derbyshire. The Derwent Dam was also used by the Dambusters for practice, though it was not breached. Navvy is a shorter form of the word navigator and is particularly applied to describe the manual labourers working on major civil engineering projects. ... The Upper Derwent Valley is an area of the Peak District National Park in Derbyshire, England. ... Derbyshire (pronounced Dar-bee-shur) is a county in the East Midlands of England, which boasts some of Englands most attractive scenery. ...

The reservoirs are now owned by Dŵr Cymru Welsh Water.

A scale model of the reservoir network, in the form of ornamental ponds, is in Cannon Hill Park in Birmingham. Cannon Hill Park is a park located in the Moseley suburb of Birmingham, England. ...

External links

• About the reservoirs
• Dambusters at Nant-y-Gro dam
• Aerial Photo of Claerwen