Aqueduct Technical Data
The aqueduct is almost 96 miles (154 km) long from Thirlmere reservoir to Heaton Park Reservoir 53°32′32″N 2°15′41″W / 53.5421°N 2.2614°W / 53.5421; -2.2614, Prestwich. Its most common form of construction is cut-and-cover, which consists of a of "D" section concrete covered channel, approximately 7.1 feet (2.2 m) wide and between 7.1 feet (2.2 m) and 7.9 feet (2.4 m) high. There are 37 miles (59.5 km) of cut and cover, made up of 12-inch (30 cm) thick concrete horseshoe shaped sections. Typically, the conduit has 3 feet (1 m) of cover and traverses the contours of hillsides.
It is the longest gravity-fed aqueduct in the country, with no pumps along its route. The water flows at a speed of 4 miles per hour (6 km/h) and takes just over a day to reach the city. The level of the aqueduct drops by approximately 20 inches per mile (30 cm/km) of its length.
Read more about this topic: Thirlmere Aqueduct
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