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Scammonden Reservoir

From Wikipedia, the free encyclopedia

Scammonden Reservoir
Scammonden Reservoir and the M62.JPG
Scammonden Reservoir and the M62
Location West Yorkshire
Coordinates 53°38′30″N 1°55′26″W / 53.64167°N 1.92389°W / 53.64167; -1.92389
Type reservoir
Basin countries United Kingdom
Surface area 42 hectares (0.16 sq mi)
Surface elevation 252 metres (827 ft)
Scammonden Dam under construction in 1970
Scammonden Dam under construction in 1970

Scammonden Reservoir is a water reservoir in West Yorkshire, England. The area of the water surface when the reservoir is full is 42 hectares (0.16 sq mi). The level of the bellmouth overflow above sea level is 252 metres (827 ft). The reservoir holds 7800 million litres. Its length is 1.4 kilometres (0.9 mi).

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  • Building of M62 and creation of Scammonden Dam




Scammonden Dam is part of the M62 motorway between junctions 22 and 23, the only such structure in Britain.[1] Its construction by the Ministry of Transport and Huddersfield Corporation Waterworks required the passing of the Huddersfield Corporation Act 1965. The motorway dam spans the Deanhead Valley in the Pennines between Leeds and Manchester and the main contractor for the project was Sir Alfred McAlpine & Sons.[2] Deanhead village was submerged and many buildings demolished to make way for the reservoir but the church remains and its vicarage is used by the sailing club.[3] Both the church and adjacent school were at risk of slipping down the hillside into the dam and were not used after 1971 when the motorway opened. The church was renovated in 2002[4] and the old schoolhouse has been converted into a private dwelling.[5]

Surveying began in November 1961 and the route of the carriageway was determined in mid 1963. Excavation in the Deanhead Valley commenced the following year and for the dam in 1966. This required the removal of 713,000 cubic metres of peat bog to reach the solid rock base nearly 13 metres below ground level. Material excavated elsewhere on the line of the motorway, clay from cuttings between Lofthouse and Gildersome, and 3.4 million cubic metres from the Deanhead excavations was used to build the dam's embankment which is 625 metres in length and 63.1 metres above the original valley floor. The 3.6 million cubic metre embankment is 435 metres wide at its base and 55 metres at road level.[3]

Scammonden Water is 51.8 metres at its deepest point and water is drawn-off through a 2.5 kilometre tunnel driven southwards to supply Huddersfield. The overflow bellmouth, next to the valve shaft superstructure, discharges water to the valley below via a tunnel in the valley on the reservoir's eastern side. The reservoir started to fill in July 1969 and the area was landscaped and parking and other facilities were provided.[3]

The motorway, which was dependent on the completion of the dam, was opened to traffic on 20 December 1970 and officially opened by HM Queen Elizabeth II who unveiled a plaque near the valve tower of Scammonden Water on 14 October 1971.[3]

Leisure activities

The reservoir is home to Scammonden Water Sailing Club or SWSC. The sailing club has the exclusive rights to the water, which means that the activities on the water are either dingy cruising or racing.[6] Other activities occasionally take place usually under the auspices of the scouts.

Huddersfield Scout Sailing is a Royal Yachting Association Training Centre run by volunteers for scouts and guides. There is also a scouting activity centre located at the water's edge which also holds the boat workshop for scout sailing.


  1. ^ "Scammonden Dam". Engineering Timelines. Retrieved 22 July 2016.
  2. ^ Gray, p. 79
  3. ^ a b c d Scammonden Dam, Engineering Timelines, retrieved 26 November 2011
  4. ^ "St Bartholomews Deanhead". A church near you. Church of England. Retrieved 22 July 2016.
  5. ^ "Memories of old village school". Halifax Courier. 24 September 2013. Retrieved 22 July 2016.
  6. ^ "Scammonden Water Sailing Club: Constitution, Rules and Bylaws" (PDF). Scammonden Water Sailing Club. 2004. Retrieved 21 December 2015.


  • Gray, Tony (1987). The Road to Success: Alfred McAlpine 1935 - 1985. Rainbird Publishing.

External links

This page was last edited on 18 June 2018, at 09:19
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