The Longdendale Chain is a sequence of six reservoirs on the River Etherow in the Longdendale Valley, in northern Derbyshire. They were constructed between 1848 and 1884 to a design by John Frederick Bateman to supply the growing population of Manchester and Salford with fresh water.
The top three reservoirs (Woodhead, Torside and Rhodeswood) and Arnfield are for drinking water, and the lower reservoirs (Valehouse and Bottoms) are used as compensation reservoirs to maintain the downstream flow of the river. There was originally a seventh – Hollingworth Reservoir – which was abandoned in 1990, and has become part of the Swallows Wood nature reserve.
The reservoirs are listed from upstream to downstream i.e. from east to west:
- Woodhead Reservoir
- Torside Reservoir
- Rhodeswood Reservoir
- Valehouse Reservoir
- Bottoms Reservoir
- Arnfield Reservoir
See also 
- "A Tribute to John Frederick La Trobe Bateman 1810–1889". Tameside MBC web pages. Tameside Council. 12 September 2007. Retrieved 8 August 2008.
- "Longendale in the Peak National Park". PDNP Education Website. Peak District National Park Authority. 2000. Retrieved 2008-08-08.
- Quayle, Tom (2006). Manchester's water: the reservoirs in the hills. Stroud: Tempus. ISBN 0-7524-3198-6. p. 120.
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