SK2475 : How to mend a weir

taken 8 years ago, near to Calver, Derbyshire, Great Britain

How to mend a weir
How to mend a weir
On the River Derwent, just below New Bridge, at Calver there is a weir, a 19th century Grade 2* listed structure. It has been in need of attention for some years. Now a project is underway, a partnership listed on the notice in SK2475 : Calver Weir repairs; notice.
A weir is a dam in a river. One of this size has a retaining wall facing upstream, and a sloping surface over which the water cascades. This weir was built to provide a sufficient head of water in the goit to power the mill downstream.
The retaining wall and slope are being repaired, but first the river has to be excluded from the wall. This is where the big blue sausage comes in SK2475 : Aquabarrier at Calver Weir. It is anchored on the river bed above the weir, inflated, and the river water pumped out. When the first section is complete, the barrier is moved away from the bank and the process is repeated until they reach the other side. When the work is hopefully complete in Autumn 2010, nothing of all this hard work will be seen, as it will all be submerged
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SK2475, 68 images   (more nearby )
Photographer
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Date Taken
Tuesday, 26 January, 2010   (more nearby)
Submitted
Tuesday, 26 January, 2010
Category
Weir   (more nearby)
Subject Location
OSGB36: geotagged! SK 245 753 [100m precision]
WGS84: 53:16.4474N 1:38.0441W
Camera Location
OSGB36: geotagged! SK 244 754
View Direction
East-southeast (about 112 degrees)
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