Bottoms Reservoir, Derbyshire
The reservoir was obliged to release ten million gallons a day. To ensure this, a gauging basin 40 feet (12 m) in diameter was built. The drinking water flowed through the Mottram Tunnel to the Godley covered reservoir.
The Peak District Boundary Walk runs along the south-western side of the reservoir and over the dam.
History
In 1877, turbines were introduced at Bottoms to produce electricity that powered the company offices and the works electric train. These operated for 28 years.
In 1998, remedial safety work was undertaken. The clay core and crest was raised by 2.5 metres (8 ft 2 in), and a dry metalled track constructed on the crest. The bywash channel bridge was replaced to give greater clearance, and the stonework of the bywash channel and the tumbling bay was repointed.