Dale Dike Reservoir - Sheffield

Dale Dike Reservoir or Dale Dyke Reservoir in the north-east Peak District, in the City of Sheffield a mile (1.6 km) west of Bradfield and eight miles (13 km) from the centre of Sheffield, on the Dale Dike, a tributary of the River Loxley. Along with three other reservoirs around the village of Bradfield — Agden, Damflask and Strines, constructed between 1859 and 1864 to guarantee a supply of water to power the mills downstream and to supply drinking water to the growing population of Sheffield.  In 1864 the newly built dam failed, causing the Great Sheffield Flood, which caused massive damage downstream along the Loxley and Don and through the centre of Sheffield. There were 244 fatalities.