| Ewen Maddock Dam | |
|---|---|
  Location of the Ewen Maddock Dam in Queensland | |
| Country | Australia |
| Location | Landsborough, South East Queensland |
| Coordinates | 26°40′51″S 153°0′22″E / 26.68083°S 153.00611°E |
| Purpose | Potable water supply |
| Status | Operational |
| Construction began | 1973 |
| Opening date | 1976; upgrade 1982 |
| Operator(s) | SEQ Water |
| Dam and spillways | |
| Type of dam | Embankment dam |
| Impounds | Addlington Creek |
| Height | 11.4 m (37 ft) |
| Length | 660–728 m (2,165–2,388 ft)[1][2] |
| Dam volume | 352×103 m3 (12.4×106 cu ft) |
| Spillway type | Uncontrolled |
| Spillway capacity | 132 m3/s (4,700 cu ft/s) |
| Reservoir | |
| Total capacity | 16,587 ML (3.649×109 imp gal; 4.382×109 US gal)[1] |
| Catchment area | 21 km2 (8.1 sq mi) |
| Surface area | 397 ha (980 acres) |
| Maximum length | 3.1 m (10 ft) |
| Maximum width | 2.6 m (8 ft 6 in) |
| Maximum water depth | 4.5 m (15 ft) |
| Website www.seqwater.com.au | |
The Ewen Maddock Dam is an earth-fill embankment dam with an un-gated spillway across the Addlington Creek that is located in Landsborough in the South East region of Queensland, Australia. The main purpose of the dam is for potable water supply of the Sunshine Coast region.[2][3]
- ^ a b "Ewen Maddock Dam". Water supply: Dams and weirs. Seqwater. 2014. Archived from the original on 14 April 2014. Retrieved 27 June 2014.
- ^ a b "Register of Large Dams in Australia" (Excel (requires download)). Dams information. Australian National Committee on Large Dams. 2010. Archived from the original on 12 December 2013. Retrieved 23 June 2014.
- ^ Harrison, Rod; James, Ernie; Sully, Chris; Classon, Bill; Eckermann, Joy (2008). Queensland Dams. Bayswater, Victoria: Australian Fishing Network. pp. 100–101. ISBN 978-1-86513-134-4.