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The Derwent Reservoir is a reservoir on the River Derwent, on the border between County Durham and Northumberland, in England. It is west of Consett. It is 3.5 miles (5.6 km) long) and covers an area of 4 km² and has a maximum depth of 100 ft (30m) and when full, holds 11,000 million gallons (50,000,000m³).[1]

Derwent Reservoir
Derwent Reservoir
Derwent Reservoir
Location	County Durham / Northumberland
Coordinates	54°52′0″N 1°59′0″W
Lake type	Reservoir
Primary inflows	River Derwent
Primary outflows	River Derwent
Basin countries	United Kingdom

The reservoir is a key part of the water supply network in north east England (which is owned and managed by Northumbrian Water) as it is the principal water source for the Tyne and Wear metropolitan area supplying 28,000,000 imperial gallons (130,000,000 l; 34,000,000 US gal) per day.[2] The reservoir was first proposed in 1957 when the Sunderland and South Shields Water Company promoted the Derwent Water Order. Building work began on the reservoir in 1960, and it was opened in July 1967 by Princess Alexandra.[3] Unlike other reservoirs in Northern England that are flooded valleys with a dam head, Derwent was dug out of the ground and the earth removed was used in its dam head.[4]

The flow of the River Derwent can be supplemented, when necessary, by water transferred from the much larger Kielder Water in Northumberland. However, this connection cannot be used to increase the depth of the reservoir itself.

Sediment within the reservoir has been found to contain elevated levels of zinc, lead and cadmium. These have drained into the reservoir from areas of historic mining activity around Blanchland. Consequently, populations of macroscopic plants in the reservoir are relatively low.[5]

Derwent Reservoir also hosts a sailing club, which holds many events throughout the year, including windsurfing, sailing, running and triathlons. The area around the reservoir hosts the annual Tour of the Reservoir cycle race.[6]

The reservoir also has hydro electric plant installed, with a rating of 97 kilowatts.[7]

See also

• British Waterways
• List of reservoirs and dams in the United Kingdom

References

External links

• Media related to Derwent Reservoir, North East England at Wikimedia Commons
• Derwent Reservoir Sailing Club
• Derwent Reservoir Trout Fishing
• Fine Old Ales and Barley Wine is a beer-making book by Philip Atkinson fictitiously set in the pub 'The Woodcock,' which was drowned when the Derwent Reservoir was built.

На других языках

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[de] Derwent Reservoir (Nordost-England)

Das Derwent Reservoir ist ein Stausee westlich von Consett an der Grenze von Northumberland und County Durham in North East England, durch den der Derwent fließt. Der Stausee liegt in der North Pennines Area of Outstanding Natural Beauty.

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- [en] Derwent Reservoir (North East England)

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