Hapton Valley. The coal staithe next to Cotton Row and tramroad continued to operate for some time after 1920. Permission to construct the reservoir at Clowbridge—historically known as the Hapton Reservoir—on the Limy Water, was contained in the 1853 that act created the Haslingden and Rawtenstall Waterworks Company. 18 months after starting construction under the supervision of Thomas Hawksley, work was suspended as the company expended all its capital. After a three-year hiatus work recommenced under the direction of Joseph Jackson, and although nearing completion in 1863, a series of landslips meant work was not completed until August 1865. The total cost was at least £ (the equivalent of £ as of ). Later taken-over by the Bury Corporation, in 1898 it was recorded to cover an area of and have a capacity of . Some of its water supply is pumped from an old mineshaft belonging to the Gambleside Colliery. At the end of the 19th century a total population of 110 lived in 22 houses within the "gathering ground" of the reservoir, with Cronkshaw Hill farmhouse located very close to the shoreline. Concerns over pollution lead to increased restrictions on farming in the area. During World War II a Starfish site bombing decoy was constructed on Hameldon hill near Heights Farm, part of a network designed to protect Accrington. Its site is protected as a Scheduled monument. Governance Dunnockshaw was once a township in the ancient parish of Whalley. This became a civil parish in 1866, forming part of the Burnley Rural District from 1894. At that time the Clowbridge area, previously part of Hapton, transferred to Dunnockshaw but a detached area on Hameldon called Dunnockshaw Close moved to Hapton in 1935. Since 1974 Dunnockshaw has formed part of the Borough of Burnley. Another change which took effect at the start of 1983, transferred part of Habergham Eaves lying west of Limey Lane into this civil parish. Along with Habergham Eaves and a small part of Burnley, the parish forms the Coalclough with Deerplay ward of the borough council. The ward elects three councillors, currently Gordon Birtwistle and Howard Baker of the Liberal Democrats, and Bill Brindle (Labour). The parish is represented on Lancashire County Council as part of the Padiham & Burnley West division, represented since 2017 by Alan Hosker (Conservative). The Member of Parliament for Burnley, the constituency into which the parish falls, is Antony Higginbotham