The Birmingham Corporation Water Department was set up in 1876 to supply water to Birmingham, up until 1974 when its responsibilities were transferred to Severn Trent Water. Most of Birmingham's water is supplied by the Elan aqueduct, opened in 1904; water is fed by gravity to Frankley Reservoir, Frankley, and Bartley Reservoir, Bartley Green, from reservoirs in the Elan Valley, Wales.
