Hewenden Reservoir | |
---|---|
Location | Cullingworth, West Yorkshire, England |
Coordinates | 53°48′58″N1°53′20″W / 53.816°N 1.889°W |
Type | Reservoir |
Primary outflows | Harden Beck |
Catchment area | 2,960 acres (1,196 ha) |
Managing agency | Yorkshire Water |
First flooded | 1845 |
Surface area | 15 acres (6 ha) |
Average depth | 141 feet (43 m) |
Water volume | 8,915,400 cubic feet (252,457 m3) |
Surface elevation | 672 feet (204.8 m) |
References | [1] [2] |
Hewenden Reservoir is a fresh-water reservoir near to Cullingworth in West Yorkshire, England. The Bradford Corporation built the reservoir, which was flooded in 1845, and is now part of the Yorkshire Water portfolio.
Hewenden Reservoir was built as a result of the Bradford Waterworks Act of 1842. The act allowed the Bradford Corporation to abstract large volumes of water from Many Wells Spring, which supplied Hewenden Beck (Harden Beck). [3] This concerned mill owners further downstream on Harden Beck. [4] As a condition of the act, the reservoir at Hewenden was constructed as a compensation Reservoir, which would guarantee a steady flow of water in Harden Beck. [5]
During construction, "three large vertical cracks" appeared in one of the culverts that had just been built, and so remedial action was necessary to the dam walls. [6] By January 1845, the remediation works were completed and the dam wall was complete. Minor works were finalised in the same year and flooding commenced in late spring, though by June, when the reservoir was about 66% full, the dam wall was observed as having collapsed in places. [7] [8] The final cost of the reservoir was £4,856 (equivalent to £511,000in 2021). [9]
The reservoir now feeds water into Harden Beck, with Hewenden itself being fed by Milking Hole Beck and Denholme Beck, the latter of which flows out from Doe Park Reservoir in Denholme, which has been culverted. [10] [11] Hewenden Reservoir is now owned and operated by Yorkshire Water. [12]
The reservoir is noted for being one of the top ten recorded wettest places in Britain; in June 1956, 6.1 inches (155 mm) of rain fell in 120 minutes, [13] [14] at that time, the largest amount of rainfall ever recorded in Yorkshire. [15] After a long period where the veracity of this claim was doubted in some meteorological circles, a review of the data and weather systems on the day, determined that 6 inches (152.4 mm) fell in 105 minutes. [note 1] [17] In 2008, the peak flow exiting the reservoir was noted at 2,800 cubic feet per second (79 m3/s). [18]
The Little Don River also known as the Porter, is a tributary of the River Don in South Yorkshire, England. Arising on the Langsett Moors in the northern Peak District, the Little Don River feeds the Langsett and Underbank Reservoirs. It runs through the town of Stocksbridge before joining the River Don.
Yorkshire Water is a water supply and treatment utility company servicing West Yorkshire, South Yorkshire, the East Riding of Yorkshire, part of North Lincolnshire, most of North Yorkshire and part of Derbyshire, in England. The company has its origins in the Yorkshire Water Authority, one of ten regional water authorities created by the Water Act 1973, and privatised under the terms of the Water Act 1989, when Yorkshire Water plc, the parent company of the Yorkshire Water business, was floated on the London Stock Exchange. The parent company was Kelda Group in 1999. In February 2008, Kelda Group was bought by a consortium of infrastructure funds.
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