Derwent (Derbyshire)

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Derwent
The Derwent near Hathersage

The Derwent near Hathersage

Data
location Derbyshire ( England )
River system Humber
Drain over Trent  → Humber  → North Sea
Emergence Bleaklow
53 ° 28 ′ 1 ″  N , 1 ° 48 ′ 47 ″  W.
muzzle Derwent Mouth in the Trent coordinates: 52 ° 52 ′ 23 "  N , 1 ° 19 ′ 12"  W 52 ° 52 ′ 23 "  N , 1 ° 19 ′ 12"  W

length 80 km
Left tributaries Bentley Brook , River Amber
Right tributaries River Westend , River Ashop , River Noe , River Wye
Reservoirs flowed through Howden Reservoir , Derwent Reservoir , Ladybower Reservoir
Medium-sized cities Derby
Small towns Matlock
The area of ​​origin of the Derwent

The area of ​​origin of the Derwent

The Derwent is a river in the English county of Derbyshire . It rises in the Peak District east of Glossop and flows south of Derby into the Trent .

The name “Derwent” means “a valley densely overgrown with oaks” in the Celtic language .

course

The Derwent arises on the boggy Bleaklow mountain plateau north of Snake Pass in the Peak District.

Soon after its origin, the Derwent flows through three reservoirs: first the Howden Reservoir , then the Derwent Reservoir and finally the Ladybower Reservoir . The tributaries of the River Westend and the River Ashop into the Derwent have sunk in Howden Reservoir and Ladybower Reservoir, respectively.

The River Noe flows into the Derwent at the village of Bamford, and after the river crosses the Chatsworth House estate , the River Wye flows into it at Rowsley. After the Bentley Brook enters the Derwent in Matlock , the Amber River meets the river at Ambergate . The Derwent flows through the center of Derby to eventually flow into the Trent at Derwent Mouth .

The river makes numerous arcs in front of its mouth, which bring its total length to 80 km, while the distance between its origin and the mouth in the Derwent is only a good 55 km.

Importance of the river

Step-Stone Bridge over the Derwent

The Derwent was made navigable between the mouth of the Trent and Derby by a resolution of parliament in 1720. In 1795, shipping on the river was stopped and shifted to the Derby Canal .

Between Matlock Bath and Derby the river was used to operate a large number of cotton mills . These mills include the Comfort Mill of Richard Arkwright , the first water-powered spinning mill. The Derwent Valley Mills World Heritage Site is dedicated to this spinning mill and several others as a UNESCO World Heritage Site .

The reservoirs of Howden Reservoir and Derwent Reservoir in the upper reaches of the river were completed in 1916 to ensure water supplies to Sheffield , Nottingham , Derby and Leicester . The Ladybower Reservoir was put into operation in 1945 to meet the increasing demand for water. The treated water from the reservoirs is diverted through the 45 km long Derwent Valley Aqueduct . The Carsington Reservoir is also filled with water from the Derwent. In winter, water from the river is channeled into Carsington Reservoir, which is channeled back into the river in the drier summer months, so that more water than the river would otherwise allow can be dammed in the other reservoirs without letting the lower reaches dry out . All reservoirs are now managed by Severn Trent Water .

The Derwent valley is also important for traffic other than shipping. Between Derby and Rowsley, the London to Manchester trunk road (A6) follows the river. The Midland Railway from Derby to Sheffield and Manchester also followed the Derwent. The route to Sheffield is now part of the Midland Main Line . The route to Manchester was closed after Matlock in 1968 and is now the Derwent Valley Line between Ambergate and Matlock . The Cromford and High Peak Railway , like the Cromford Canal, also ran through the river valley.

Web links

Commons : Derwent (Derbyshire)  - collection of pictures, videos and audio files

Individual evidence

  1. ^ Eilert Ekwall, The Concise Oxford Dictionary of English Place Names (4th edition) 1960. Oxford: Clarendon Press. P. 143. ISBN 0-19-869103-3