Ponden Reservoir Explained

Ponden Reservoir
Location:Stanbury, West Yorkshire, England
Coordinates:53.83°N -2.01°W
Type:Compensation
Outflow:River Worth
Catchment:1027ha
Date-Built:1871–1876
Area:10ha
Volume:865000m2
Shore:2km (01miles)
Elevation:234m (768feet)
Pushpin Map:West Yorkshire
Pushpin Map Alt:Location if the reservoir in West Yorkshire
Reference:[1]

Ponden Reservoir is an artificial upland lake in the Worth Valley, near Stanbury, West Yorkshire, England. Ponden was built as a compensation reservoir after the nearby Watersheddles Reservoir (upstream) was used to divert water away from the River Worth. Ponden was needed to regulate the flow of water down the river into the downstream mills in the valley.

The reservoir is owned and managed by Yorkshire Water, and is used as a recreational waterbody by a sailing club.

History

Ponden Reservoir was completed in 1876 as a compensation reservoir on the River Worth in West Yorkshire. An estimate in 1853 accounted for 16 mills between the site of Ponden Reservoir and where the River Worth ended in Keighley.[2] The tender for construction of Ponden (and Watersheddles) was awarded to Walker and Taylor of Crewe in June 1870.[3] But the construction was beset by problems with the puddle trench (needed for the dam wall), being sunk to a depth of before finding rock. Other issues with building the reservoir changed the original timeline from 1 year and nine months, to five years.[4] By 1874, the height of the dam wall had been built to a height of, and 222 men were working on the project.[5]

The influx of navvies to construct both Watersheddles and Ponden reservoirs, created a separate local industry; brewing. It was said that the navvies needed two things; beef and beer, and a brewery was built to service their needs at Scar Top, which was at the north eastern end of the dam wall at Ponden Reservoir.

Keighley Corporation Water Works operated the reservoir until 1959, when it was amalgamated into the newly created Craven Water Board (CWB).[6] The CWB, itself, was subsumed into Yorkshire Water in 1974.[7] [8] In 2022, Yorkshire Water commissioned a pipeline to connect Walshaw Dean Upper Reservoir to Ponden Reservoir, which allows for the transfer of water to Ponden. During the 2022 drought, this enabled reservoir levels at Ponden to be increased from a 20% low, to 80%.[9]

Hydrology and wildlife

Water for Ponden Reservoir either flows downstream from Watersheddles reservoir, or through the streams that feed the reservoir separately. One of the major tributaries is Ponden Clough, which flows over sandstone beds, typically composed of grit, mudstone and Keighley Bluestone (a hard wearing stone used in road building locally).[10] A catchment tower was built at the head of Ponden Clough which takes water away from the stream and straight into Watersheddles by the means of a conduit.

The water quality of Ponden is rated as moderate for ecological purposes, and good for its chemical composition, by the Environment Agency.[11] The surrounding peatland contributes to the discolouration of the water held in the reservoir.[12] Water from Ponden is now supplied to two water treatment works at Oldfield and Sladen Valley, as well as regulating the flow of water into the River Worth.[13] Water from Ponden is only pumped to Oldfield WTW if the supply from Watersheddles is disrupted in any way.[14]

The River Worth is noted for the presence of brook lamprey, which have been recorded just south of Ponden Bridge.[15] In 2017-2018, a fish pass was installed into the reservoir.[16] Canada geese are often seen on the reservoir, and reports of mink on the edges have been prevalent since the 1980s.

Leisure

Ponden Water Sports Club use the site for canoeing, sailboarding and sailing.[17]

References

Sources

Notes and References

  1. Web site: Ponder[sic] Reservoir Water Body ID 30489 ]. eip.ceh.ac.uk . 2 September 2020 . 11 June 2016 . https://web.archive.org/web/20160611204850/https://eip.ceh.ac.uk/apps/lakes/detail.html#wbid=30489 . dead .
  2. News: The Bradford Water Works Bill . The Bradford Observer . 1,002 . 5 May 1853 . Column E . 5.
  3. News: Keighley Local Board . The Bradford Observer . 2,332 . 15 June 1870 . Column E . 3.
  4. News: Dewhirst . Ian . Ponden puddle scene was set for a rip-roaring era . 4 September 2020 . infoweb.newsbank.com . 5 February 2009. subscription.
  5. News: Keighley Local Board . The Bradford Observer . 3,572 . 10 June 1874 . Column C . 3.
  6. News: Looking Back Friday, August 29, 2008 . 4 September 2020 . infoweb.newsbank.com . 29 August 2008. subscription.
  7. News: Craven's long, hot summer when the rain never came . 4 September 2020 . Craven Herald . 5 September 2009.
  8. News: Craven through the years . 4 September 2020 . infoweb.newsbank.com . 13 June 1998. subscription.
  9. News: Mitchinson . James . Yorkshire hosepipe ban lifted as wetter than average autumn fills reservoirs . The Yorkshire Post . 7 December 2022 . 6. 0963-1496.
  10. Web site: Ponden Clough, Haworth . wyorksgeologytrust.org . 2 September 2020 .
  11. Web site: Ponden Reservoir . environment.data.gov.uk . 2 September 2020.
  12. Web site: PR19 – Yorkshire Water's submission to DWI . yorkshirewater.com . 4 September 2020 . 37 . December 2017.
  13. Web site: Drinking Water Quality DWI Submission; Long-term Statement on Drinking Water Quality . yorkshirewater.com . 4 September 2020 . 42 . May 2018.
  14. Web site: PR19 – Yorkshire Water's submission to DWI . yorkshirewater.com . 4 September 2020 . 42 . December 2017.
  15. Sunderland . Kevin . River Aire Fish Populations 2012 . The Naturalist . December 2013 . 138 . 1,084 . 166 . Yorkshire Naturalists' Union . York . 0028-0771.
  16. Web site: Biodiversity Action Plan 2017-2018 . yorkshirewater.com . 4 September 2020 . 4 .
  17. Web site: Recreational Tenants Yorkshire Water . www.yorkshirewater.com . 4 September 2020.