with Birmingham city centre skyline in the background
|Type||drinking water reservoir|
|Primary inflows||Elan aqueduct|
|Primary outflows||Frankley Water Treatment Works|
|Managing agency||Severn Trent Water|
|Max. length||1.05 kilometres (0.65 mi)|
|Max. width||450 metres (1,480 ft)|
|Surface area||0.46 square kilometres (110 acres)|
|Average depth||5.1 metres (17 ft)|
|Water volume||2,400,000m³ (528 million gallons)|
|Shore length1||3 kilometres (1.9 mi)|
|1 Shore length is not a well-defined measure.|
The reservoir is about 0.65 miles long, over 450m wide, and about 60 feet (18 m) deep at the dam. Its surface area is 110 acres (0.45 km2).
It is known as the place where Bill Oddie did much of his early birdwatching, and features in his books (notably Bill Oddie's Gone Birding) and television programmes. His first ever published article, for the West Midland Bird Club's annual report, was about the birds of the reservoir. The reservoir is also home to Bartley Sailing Club.
Most of the land occupied by Bartley Reservoir was in the parish of Northfield, originally in Worcestershire. It was transferred to Warwickshire when Northfield became part of Birmingham in November 1911, and thus became part of the West Midlands county on the latter's creation in 1974.
However, the south-west end of the reservoir overlapped into the parish of Frankley, in Worcestershire (Hereford and Worcester, from 1974). In April 1995 part of Frankley (including the south-west part of Bartley Reservoir) was transferred to Birmingham and thus joined the rest of the reservoir in the West Midlands county.
Shortly after the completion of the Elan Valley Reservoirs in the early 1920s, it became apparent that more storage capacity would be required to maintain the daily supplies needed by Birmingham. The reservoir is close to the terminus of the Elan aqueduct and adjacent to Frankley Reservoir.
The contract for the construction of the reservoir was let by Birmingham Corporation Water Department in February 1925 to Edmund Nuttall, Sons and Co. Ltd., of Manchester, and the Francois Cementation Company undertook all cementation. It was completed in 1930.
- Oddie, W.E. (July 1963). "Birds in the Bartley Reservoir Area, 1931-1962 (Part I)". The West Midland Bird Report, 1962 (Birmingham: West Midland Bird Club) 29. Archived from the original on 14 May 2011. Retrieved 13 February 2010.
- Ordnance Survey Landranger Sheet 139, 1982 edition
- Lawson, Mark (30 July 1985). "Choice (Today's Television Programmes)". The Times (UK). p. 29. Retrieved 12 November 2008.
- "Nature Watch Special: Bill Oddie - Bird Watcher". 1985-07-30. ITV Central. Missing or empty
- West Midland Bird Club page on Bartley Reservoir at the Wayback Machine (archived 14 May 2011)
- Bartley Reservoir article by Bill Oddie, from West Midlands Bird Club's archive at the Wayback Machine (archived 14 May 2011)
- Bartley Sailing Club