Valehouse (or Vale House) Reservoir is a man-made

lake A lake is an area filled with water, localized in a basin, surrounded by land, and distinct from any river or other outlet that serves to feed or drain the lake. Lakes lie on land and are not part of the ocean, although, like the much large ...

Longdendale Longdendale is a valley in the Peak District of England, north of Glossop and southwest of Holmfirth. The name means "long wooded valley" and the valley is mostly in the counties of Derbyshire and Greater Manchester. Geography The eastern part ...

in north

Derbyshire Derbyshire ( ) is a ceremonial county in the East Midlands, England. It includes much of the Peak District National Park, the southern end of the Pennine range of hills and part of the National Forest. It borders Greater Manchester to the nor ...

. It was built between 1865 and 1869 as part of the Longdendale chain, which was built to supply water from the

River Etherow The River Etherow is a river in northern England, and a tributary of the River Goyt. Although now passing through South Yorkshire, Derbyshire and Greater Manchester, it historically formed the ancient county boundary between Cheshire and Derby ...

to the urban areas of

Greater Manchester Greater Manchester is a metropolitan county and combined authority, combined authority area in North West England, with a population of 2.8 million; comprising ten metropolitan boroughs: City of Manchester, Manchester, City of Salford, Salford ...

while maintaining a constant flow into the river. The upper reservoirs supply the drinking water, while Vale House and Bottoms are compensation reservoirs which guarantee the flow of water to water-powered mills downstream. Valehouse, with a crest elevation of , is too low to supply water under gravity to the Mottram Tunnel, so could not be used as an impounding reservoir. Today 45 megalitres of compensation water are released each day into the River Etherow. Vale House Mill was purchased by Manchester Corporation in 1864, but a few villagers remained in the village of Vale House until 1868. In 1869 the hamlet was flooded out. The village was substantial, having an estimated population of 600 houses and 100 cottages. There was a gasworks and a school house for 24-30 scholars. Vale House Mill was the first spinning and weaving mill in Longdendale; it was built in 1775 by Samuel Oldknow. In 1864 it was owned by William Hobbs and Co. It had two carding rooms, nine spinning rooms, three weaving rooms and two Blowing Rooms. It had 15,416 spindles and 326 power looms. Vale House residents worshipped at the Ebenezer Methodist Chapel in Tintwistle (built 1830), which was above the reservoir. The chimney at Vale House Mill survived the construction of the reservoir and became known as the "Whispering Chimney" as it produced ghostly noises during strong winds. It was demolished in 1887 at the request of the Manchester to Sheffield Railway Company, who feared for the stability of their trains when all the passengers crowded over to one side of a carriage to see the chimney protruding from the waters of the reservoir. The puddle trench was dug to a depth of to a layer of lower millstone grit, which rested on limestone shales, and a good watertight seal was easily achieved. It was stated in a statuary report, under the Reservoir Safety Act 1975, dated 12 June 1984, that all five reservoirs could be over-topped during a Probable Maximum Flood, so major works were undertaken. The retention level was raised by , the embankment crest by , and the wave wall was rebuilt. An wide auxiliary spillway was constructed, two new butterfly valves installed and existing valves descaled and motorised. The 11 kV overhead powerline was routed in a new embankment crest duct.

References

{{authority control Reservoirs of the Peak District Reservoirs in Derbyshire

See also

References