| Watersheddles Reservoir | |
|---|---|
| Water Sheddles | |
 Dam and valve tower, Watersheddles Reservoir | |
  Watersheddles Reservoir Location in Lancashire | |
| Location | Borough of Pendle, Lancashire |
| Coordinates | 53°50′20″N 2°03′04″W / 53.8390°N 2.0512°W |
| Type | Reservoir |
| Primary outflows | River Worth |
| Catchment area | 560 acres (225 ha) |
| Basin countries | England |
| Managing agency | Yorkshire Water |
| Built | 1871–1877 |
| First flooded | 1877 |
| Surface area | 27 acres (11 ha) |
| Average depth | 18 feet (5.5 m) |
| Max. depth | 49 feet (15 m) |
| Water volume | 28,300,000 cubic feet (801,000 m3) |
| Shore length1 | 1.2 miles (2 km) |
| Surface elevation | 1,099 feet (335 m) |
| References | [1] |
| 1 Shore length is not a well-defined measure. | |
Watersheddles Reservoir is an upland artificial lake in Lancashire, England. The reservoir was opened in 1877 by the Keighley Corporation Water Works, and is now owned by Yorkshire Water. It supplies water to the Worth Valley and Keighley area and compounds several streams at the source of the River Worth.
Although the reservoir is just across the boundary of Lancashire, all of the water is used in the West Yorkshire region.
Due to the peatland in the immediate catchment area, the reservoir is prone to a high acidity and discolouration in its water.
- ^ "Water Sheddles Reservoir Water Body ID 30471". eip.ceh.ac.uk. Archived from the original on 11 June 2016. Retrieved 25 March 2020.