Six Mile Creek Dam
| Six Mile Creek Dam | |
|---|---|
Six Mile Creek Dam spillway in 2021 | |
Location of the Six Mile Creek Dam in Queensland | |
| Country | Australia |
| Location | South East Queensland |
| Coordinates | 26°22′52″S 152°55′48″E / 26.38111°S 152.93000°E |
| Purpose | |
| Status | Operational |
| Opening date | 1965 |
| Operator(s) | SEQ Water |
| Dam and spillways | |
| Type of dam | Embankment dam |
| Impounds | Six Mile Creek |
| Height | 15.7 m (52 ft) |
| Length | 490 m (1,610 ft) |
| Dam volume | 69×103 m3 (2.4×106 cu ft) |
| Spillway type | Uncontrolled |
| Spillway capacity | 1,147 m3/s (40,500 cu ft/s) |
| Reservoir | |
| Creates | Lake Macdonald |
| Total capacity | 8,018 ML (1.764×109 imp gal; 2.118×109 US gal) |
| Catchment area | 49 km2 (19 sq mi) |
| Surface area | 260 ha (640 acres) |
| Website www.seqwater.com.au | |
The Six Mile Creek Dam (more commonly known as Lake MacDonald) is a rock and earth-fill embankment dam with an un-gated spillway across the Six Mile Creek that is located in the South East region of Queensland, Australia. The main purposes of the dam are for potable water supply of the Sunshine Coast region and for recreation. The impounded reservoir is called Lake Macdonald, named in memory of former Noosa Shire Council Chairman Ian MacDonald.