| Frankley Reservoir | |
| Location: | Birmingham |
| Pushpin Map: | West Midlands |
| Coords: | 52.4207°N -1.9985°W |
| Short Title: | Birmingham Corporation Water Act 1892 |
| Type: | Act |
| Parliament: | Parliament of the United Kingdom |
| 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. |
| Year: | 1892 |
| Citation: | 55 & 56 Vict. c. clxxiii |
| 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.
It contains 900000m2 of water received from the Elan Valley Reservoirs,[2] 1170NaN0 away, in Wales, which arrives via the Elan aqueduct, by the power of gravity alone, dropping 52m (171feet) – an average gradient of 1 in 2,300.
Before 1987 it was leaking 540L per second. In that year ground-penetrating radar was used successfully to isolate the leaks.[2]