| Howden Reservoir | |
|---|---|
 Howden Dam from Abbey Bank (Dec 2010) | |
  Howden Reservoir | |
| Location | Derbyshire andSouth Yorkshire |
| Coordinates | 53°26′N1°45′W / 53.433°N 1.750°W /53.433; -1.750 |
| Lake type | reservoir |
| Primary inflows | River Derwent,River Westend,Howden Clough andLinch Clough |
| Primary outflows | River Derwent |
| Basin countries | United Kingdom |
TheHowden Reservoir is a Y-shapedreservoir, the uppermost of the three in theUpper Derwent Valley, England. The western half of the reservoir lies inDerbyshire and the eastern half is inSheffield,South Yorkshire; the county border runs through the middle of the reservoir, following the original path of theRiver Derwent. The longest arm is around1+1⁄4 mi (2.0 km) in length. The reservoir is bounded at the southern end by Howden Dam; below this, the Derwent flows immediately intoDerwent Reservoir and subsequently theLadybower Reservoir. Other tributaries include theRiver Westend,Howden Clough andLinch Clough.
Work commenced on the dam's construction on 16 July 1901 and completed in July 1912. The chief engineer was Edward Sandeman. He was also in charge of building nearby Derwent dam and was awarded theTelford Medal in 1918 for his work "Derwent Valley Waterworks". The works involved constructing a temporary village atBirchinlee, or "Tin Town", for the workers, a temporary railway line from the main line atBamford, construction of a link aqueduct to the Derwent Dam. The dam is of solid masonry construction, and 117 ft (36 m) tall, 1,080 ft (330 m) long, and impounds 1,900,000 imp gal (8,600 kl) of water, from a catchment area of 5,155 acres (2,086 ha). The workers who died during the construction of the dam were buried inSt John the Baptist's Church, Bamford.
To the east of the reservoir stands Featherbed Moss, one of the highest tops in the area at 1,788 ft (545 m), and one of several tops of that name in the area. This is not to be confused with the more well-knownFeatherbed Moss on thePennine Way betweenKinder Scout andBleaklow.
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