Lake Lenthall
Dam in Fraser Coast, Queensland
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Lake Lenthall is a lake created by the Lenthalls Dam in Duckinwilla, in the Fraser Coast Region of Queensland, Australia. The earth and rockfill embankment dam impounds the Burrum River to create a 28,411 ML (23,033 acre⋅ft) man-made reservoir. Due to its relatively small 518-square-kilometre (200 sq mi) catchment area, it takes a short time in moderate rain events to fill Lake Lenthall to 100% capacity.[1][2]
| Lenthalls Dam | |
|---|---|
  Lenthalls Dam Location of the lake in Queensland | |
 Interactive map of Lenthalls Dam | |
| Country | Australia |
| Location | 29 km (18 mi) north-west of Maryborough, Fraser Coast, Queensland |
| Coordinates | 25°24′08″S 152°31′52″E |
| Purpose | Potable water supply |
| Status | Operational |
| Opening date | 1984 |
| Owner | Hervey Bay-Woocoo Water Supply Board |
| Dam and spillways | |
| Type of dam | Embankment dam |
| Impounds | Burrum River |
| Height (foundation) | 23 m (75 ft) |
| Length | 445 m (1,460 ft) |
| Dam volume | 28,400×103 m3 (1,000×106 cu ft) |
| Reservoir | |
| Creates | Lake Lenthall |
| Total capacity | 28,411 ML (23,033 acre⋅ft) |
| Catchment area | 518 km2 (200 sq mi) |
| Surface area | 766 ha (1,890 acres) |
| Maximum length | 9 km (5.6 mi) |
| Maximum water depth | 11 m (36 ft) |
| Lake Lenthall | |
| Type | reservoir |
| Average depth | 4 to 5 m (13 to 16 ft) |
| Shore length1 | 83 km (52 mi) |
| Settlements | Aldershot, Childers, Hervey Bay, Howard, Maryborough, Torbanlea |
| Location | |
| 1 Shore length is not a well-defined measure. | |
History
The dam and lake were named after the pioneering family in the district.[3][4] The dam was constructed in 1984 on the head waters of the Burrum River and raised by 2 metres (6 ft 7 in) in 2007. In January 2013 due to heavy rain from ex Tropical Cyclone Oswald, the lake reached its highest recorded level of 30.4 metres (100 ft) which was 4.4 metres (14 ft) over the spillway.[1]
The lake has a relatively small surface area of 766 hectares (1,890 acres), an average depth of 4 to 5 metres (13 to 16 ft). Its main purpose is the supply of potable water for Hervey Bay and surrounding townships within the Fraser Coast Region.[1]
Fish stock
It is stocked with Australian native fish such as barramundi, bass, golden perch and silver perch under the Queensland Governments stocked impoundment permit scheme. Other aquatic species which inhabit the lake include spangled grunter, saratoga, Krefft's turtle, Flinders Ranges mogurnda, rainbow fish, fire tail gudgeon, long finned eel and many more. The lake is home to a myriad of reptiles, insects, bird life and mammals.[citation needed]
A Stocked Impoundment Permit is required to fish in the dam.[5]
Other fauna
A significant black-breasted buttonquails reside within the dry vine rain forests on the ridges overlooking Lake Lenthall.[citation needed]
