Monday, May 24, 2021

Ladybower Reservoir | Derbyshire England

Ladybower is a reservoir in the UK formed by an artificial dam and the Ashop and Derwent rivers. The construction of the reservoir began in 1935, but due to the Second World War, it was delayed; it took time to fill the reservoir, build a dam and two viaducts, Ashopton and Ladybower. On September 25, 1945, the opening ceremony was held, which was attended by King George VI, accompanied by the future Queen Elizabeth.

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Ladybower reservoir

Ladybower Dam


The "Derbyshire England dam" design provides for two weirs, 24m and 4.6m in diameter, resembling an inverted bellmouth spillway. These funnels look especially spectacular during the reservoir's overflow, locally named the "plug hole," when the excess water flowing into them closes the edges of the concrete wells of the Godzilla bathtub drain.

Ladybower dam


Why do we need huge funnels in reservoirs?

The explanation is quite simple - these are weirs. They are needed so that the reservoir does not overflow and the water does not damage the dam. Once in the funnel, water flows out through a long tunnel and is discharged downstream of the river. When there is a lot of water, it covers the concrete edges of the structure and a spectacular view, reminiscent of a giant whirlpool.
First Image / Source

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Plug hole

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Derbyshire England dam

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Ladybower reservoir Derbyshire England

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Bellmouth spillway

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Bell-mouth spillway of Ladybower reservoir in Derbyshire England

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Ladybower plughole

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Derbyshire dam

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Lady Bower

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Ladybower reservoir plughole, Big water hole

Ladybower Reservoir Plughole | Video


Ladybower Reservoir Map

Source | Wikipedia 

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