| Frankley Reservoir | |
|---|---|
 | |
  Frankley Reservoir | |
| Location | Birmingham |
| Coordinates | 52°25′14″N 1°59′55″W / 52.42069°N 1.99849°W |
| Type | Drinking water |
| Primary inflows | Elan aqueduct |
| Primary outflows | Frankley Water Treatment Works |
| Act of Parliament | |
 | |
| Long title | An Act for empowering the corporation of the city of Birmingham to obtain a supply of water from the rivers Elan and Claerwen and for other purposes. |
|---|---|
| Citation | 55 & 56 Vict. c. clxxiii |
| Dates | |
| Royal assent | 27 June 1892 |
Frankley Reservoir is a semi-circular reservoir for drinking water in Birmingham, England, operated by Severn Trent Water.[1] Its construction was authorised by the Birmingham Corporation Water Act 1892 (55 & 56 Vict. c. clxxiii) It was built by Birmingham Corporation Water Department to designs by Abram Kellett of Ealing in 1904.[2]
It contains 900,000 cubic metres (200,000,000 imp gal) of water received from the Elan Valley Reservoirs,[2] 117 km (73 mi) away, in Wales, which arrives via the Elan aqueduct, by the power of gravity alone, dropping 52 metres (171 ft) – an average gradient of 1 in 2,300.
Before 1987 it was leaking 540 litres (120 imp gal) per second. In that year ground-penetrating radar was used successfully to isolate the leaks.[2]
