# Cooloolabin Dam

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The **Cooloolabin Dam** is a concrete [gravity dam](/source/Gravity_dam) on Rocky Creek located to the west of [Yandina](/source/Yandina,_Queensland) on the [Sunshine Coast](/source/Sunshine_Coast_(Queensland)) of [Queensland](/source/Queensland), Australia. The dam is located on the [headwaters](/source/Headwaters) of the [South Maroochy River](/source/Maroochy_River) waterway and is a source of [potable water](/source/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. As part of the [SEQ Water](/source/Seqwater) 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.[1][2]

The spillway is [un-gated and uncontrolled](/source/Spillway#Types) 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](/source/List_of_dams_and_reservoirs_in_Australia)

## References

1. ["Cooloolabin"](https://www.seqwater.com.au/dams/cooloolabin). *[SEQ Water](/source/Seqwater)*. Retrieved 2021-10-28.

1. ["Cooloolabin Dam Emergency Action Plan"](http://data.dnrm.qld.gov.au/eap/cooloolabin-eap.pdf). QLD Department of Natural Resources, Mines, and Energy. [Archived](https://web.archive.org/web/20170313134241/http://data.dnrm.qld.gov.au/eap/cooloolabin-eap.pdf) 13 March 2017 at the Wayback Machine.

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Adapted from the Wikipedia article [Cooloolabin Dam](https://en.wikipedia.org/wiki/Cooloolabin_Dam) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Cooloolabin_Dam?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.