The reservoir was built by
Leeds Corporation Waterworks, and employed a labour force of around 300 men under the management of Robert Brooks, previously an assistant at the construction of
Lindley Wood Reservoir. Consultants were
Thomas Hawksley of
Westminster and Edward Filliter of
Leeds. Work on the construction of the reservoir began in 1871. "The Huts", as they were known locally, were constructed to house the workforce, in part using materials from a water mill dismantled in the valley. The bulk of the materials for the dam itself came to
Starbeck by rail. From there they were, at first, transported to the site using a steam traction engine pulling wagons. However, by 1872 this practice was put to an end due to the damage being caused to the 'Turnpike road', now the
A59, and from then on materials were transported by contractors. At the site, a
narrow gauge railway was constructed, and two locomotives purchased, the first arriving in 1873 and the second in 1875. The impact of the construction work was considerable for local residents, in ways both positive and negative. In his diaries, local man John Dickinson mentions the waterworks band coming with their music on Christmas Day, a visit to a "Magic Lantern performance at The Huts" and a waterworks sports day on Swinsty Moor with several hundred in attendance. On the downside, he complains several times of "rough navvies" occupying the local inn at
Timble, and expresses the hope they will soon be gone. As work neared completion in 1877, the huts were removed and the filling of the reservoir began. Work was finally completed in 1878. == Design and architecture ==