Cooloolabin Dam
The dam in 2021
Cooloolabin Dam Location of the dam in Queensland
Interactive map of Cooloolabin Dam
Country	Australia
Location	Nambour, Sunshine Coast, Queensland
Coordinates	26°33′01″S 152°52′48″E / 26.5503°S 152.88°E / -26.5503; 152.88
Status	Operational
Opening date	1979
Operator	SEQ Water
Dam and spillways
Type of dam	Gravity dam
Impounds	Rocky Creek; part of the South Maroochy River
Height (foundation)	19 m (62 ft)
Length	243 m (797 ft)
Spillway type	Un-gated and uncontrolled
Reservoir
Total capacity	8,183 ML (6,634 acre⋅ft)
Catchment area	8.1 km2 (3.1 sq mi)
Surface area	220 ha (540 acres)

The Cooloolabin Dam is a concrete gravity dam on Rocky Creek located to the west of Yandina on the Sunshine Coast of Queensland, Australia. The dam is located on the headwaters of the South Maroochy River waterway and is a source of potable water for the area.

Overview

The main dam wall is 19 metres (62 ft) high and 243 metres (797 ft) long, and it has five saddle dams that total 1,100 metres (3,600 ft) in length. The dam was completed in 1979 and it created a reservoir with a capacity of 13,600 megalitres (11,000 acre⋅ft). As part of the SEQ Water Dam Improvement Program, a section of the spillway was cut away in 2015 to lower the spillway by 3 metres (9.8 ft), reducing the full supply capacity to 8,183 megalitres (6,634 acre⋅ft).^[1][2]

The spillway is un-gated and uncontrolled and when the reservoir reaches 100 per cent capacity, water flows over the spillway and safely out of the dam. The reservoir overflowed for the first time in 1988.

See also

• List of dams and reservoirs in Australia

References

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