E.J. Beardmore Dam

The E.J. Beardmore Dam, an earth-fill embankment dam with a concrete gravity wall across the Balonne River, is located in South West Queensland, Australia. The main purpose of the dam is for irrigation. The resultant reservoir is called Lake Kajarabie.

Beardmore Dam
The Beardmore Dam viewed from below the dam wall
Location of the Beardmore Dam
in Queensland
Official nameE. J. Beardmore Dam
CountryAustralia
LocationSouth West Queensland
Coordinates27°54′22″S 148°38′42″E
PurposeIrrigation; water supply
StatusOperational
Opening date1972
Operator(s)Sunwater
Dam and spillways
Type of damEmbankment dam
ImpoundsBalonne River
Height15.2 m (50 ft)
Length2,591 m (8,501 ft)
Dam volume115×10^3 m3 (4.1×10^6 cu ft)
SpillwaysOne
Spillway typeUncontrolled
Spillway capacity5,550 m3/s (196,000 cu ft/s)
Reservoir
CreatesLake Kajarabie
Total capacity81,700 ML (18.0×10^9 imp gal; 21.6×10^9 US gal)[1]
Catchment area71,560 km2 (27,630 sq mi)
Surface area2,850 ha (7,000 acres)
Maximum water depth12.1 m (40 ft)
Normal elevation207.1 m (679 ft)

Location and features

Located 17 kilometres (11 mi) north-east of St George, the dam wall was constructed in 1972.

The dam wall is 15.2 metres (50 ft) high and 2,591 metres (8,501 ft) long and holds back 81,700 megalitres (18.0×10^9 imp gal; 21.6×10^9 US gal) of water when at full capacity. The surface area of the reservoir is 2,850 hectares (7,000 acres) and the catchment area is 71,560 square kilometres (27,630 sq mi). The uncontrolled spillway has a discharge capacity of 5,550 cubic metres per second (196,000 cu ft/s).[2] Lake Kajarabie has an average depth of 2.4 metres (7 ft 10 in) and, when full, impounded water can back up some 75 kilometres (47 mi) along the Balonne River and almost 20 kilometres (12 mi) along the Maranoa River.

See also

References
  1. "Beardmore Dam: Current Water Storage Information". Sunwater. Archived from the original on 28 May 2010.
  2. "Register of Large Dams in Australia" (Excel (requires download)). Dams information. Australian National Committee on Large Dams. 2010. Retrieved 23 June 2014.


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