Isis Balancing Storage

Isis Balancing Storage
Isis Balancing Storage is located in Queensland
Isis Balancing Storage
Isis Balancing Storage
Location of the dam in Queensland
Map
Interactive map of Isis Balancing Storage
CountryAustralia
Location24 km (15 mi) north of Childers, Wide Bay-Burnett, Queensland
Coordinates25°01′57″S 152°14′06″E / 25.0326°S 152.235°E / -25.0326; 152.235
PurposeIrrigation
StatusOperational
Opening date1986
OperatorSunWater
Dam and spillways
Type of damEarth fill dam
ImpoundsTributary of the Elliott River
Height (foundation)14.2 m (47 ft)
Length721 m (2,365 ft)
Elevation at crest64.2 m (211 ft) AHD
Width (crest)6 m (20 ft)
Spillway typeUncontrolled
Spillway capacity453 m3/s (16,000 cu ft/s)
Reservoir
CreatesLake Gregory
Total capacity6,440 ML (5,220 acre⋅ft)
Active capacity6,160 ML (4,990 acre⋅ft)
Catchment area12.8 km2 (4.9 sq mi)
Surface area167 ha (410 acres)
Maximum water depth3.1 m (10 ft)
Normal elevation64 m (210 ft) AHD

The Isis Balancing Storage is a small earth-filled embankment dam across an unnamed tributary of the Elliott River, located between Bundaberg and Childers in the Wide Bay-Burnett region of Queensland, Australia. Completed in 1986, the impoundment created Lake Gregory, also known as The Duckpond,[1] that was built to provide irrigation water to farmers on the Isis channel system.[2]

Overview

The dam wall is 14.2 metres (47 ft) high, 721 metres (2,365 ft) long, 6 metres (20 ft) wide at the crest, and holds back 6,440 megalitres (5,220 acre⋅ft) when at full capacity. The small reservoir is 1.67 square kilometres (0.64 sq mi) in area, with an average depth of 3.1 metres (10 ft) that draws from a catchment area of 12.8 square kilometres (4.9 sq mi).[2]

In 1991, the reservoir was stocked with 80,000 bass and 25,000 Silver Perch. Garfish and eel-tailed catfish occur naturally.[3] Lake Gregory is the closest freshwater storage lake to Bundaberg and is surrounded by the Elliott State Forest.[4] A Stocked Impoundment Permit is required to fish in the dam.[5]

References

  1. ^ "Lake Gregory. Isis Balancing Storage. Bundaberg / Childers". Sweetwater Fishing Australia.
  2. ^ a b "EMERGENCY ACTION PLAN — ISIS BALANCING STORAGE (ID 2233)" (PDF). SunWater. Department of Local Government, Water and Volunteering. Queensland Government. September 2025. p. 13. Retrieved 17 March 2026.
  3. ^ "Library". Fishnet.{{cite web}}: CS1 maint: deprecated archival service (link)
  4. ^ "Fishing". Bundaberg Region.
  5. ^ "Fishing in Queensland dams? You may need a permit". Department of Primary Industries. Queensland Government. Archived from the original on 29 August 2007.


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