Little Nerang Dam

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Little Nerang Dam
Little Nerang Dam is located in Queensland
Little Nerang Dam
Location of the Little Nerang Dam
in Queensland
Country Australia
Location South East Queensland
Coordinates 28°8′37″S 153°17′6″E / 28.14361°S 153.28500°E / -28.14361; 153.28500Coordinates: 28°8′37″S 153°17′6″E / 28.14361°S 153.28500°E / -28.14361; 153.28500
Purpose Potable water supply[1]
Status Operational
Opening date 1962 (1962)
Operator(s) SEQ Water
Dam and spillways
Type of dam Gravity dam
Impounds Little Nerang Creek
Height 44 m (144 ft)[1]
Length 201 m (659 ft)[1]
Dam volume 68×10^3 m3 (2.4×10^6 cu ft)[1]
Spillway type Uncontrolled
Spillway capacity 570 m3/s (20,000 cu ft/s)[1]
Reservoir
Creates Lake Macdonald
Total capacity 8,390 ML (1.85×109 imp gal; 2.22×109 US gal)[1][3]
Catchment area 35 km2 (14 sq mi)[1][2]
Surface area 50 ha (120 acres)[2][3]
Website
www.seqwater.com.au

The Little Nerang Dam is a concrete gravity dam with an un-gated spillway across the Little Nerang Creek that is located in the South East region of Queensland, Australia. The main purpose of the dam is for potable water supply of the Gold Coast region.[1][3] The impounded reservoir is also called Little Nerang Dam.

Location and features[edit]

The dam is located 6 kilometres (3.7 mi) from Cooroy and 15 kilometres (9.3 mi) west of Noosa. The small settlement of Lake MacDonald is located adjacent to the dam. The primary inflow of the reservoir is Six Mile Creek,[3] and the dam is located directly upstream from the Hinze Dam. Prior to the completion of the Hinze Dam, the Little Nerang Creek Gravity Scheme supplied the water requirements of the Gold Coast area. Water flows by gravity pipeline to the Mudgeeraba Water Treatment Plant. The plant, completed in 1969, has the capacity to treat 110 megalitres (24,000,000 imp gal; 29,000,000 US gal) a day. The water then flows by gravity to the city's storage reservoirs.

Completed in 1962,[1] the rock and earthfill dam structure is 44 metres (144 ft) high and 201 metres (659 ft) long. The 68-thousand-cubic-metre (2.4×10^6 cu ft) dam wall holds back the 8,390-megalitre (1.85×109 imp gal; 2.22×109 US gal) reservoir when at full capacity. From a catchment area of 35 square kilometres (14 sq mi) that includes the Springbrook Plateau, the dam creates an unnamed reservoir with a surface area of 50 hectares (120 acres). The uncontrolled un-gated spillway has a discharge capacity of 570 cubic metres per second (20,000 cu ft/s).[1] Initially managed by Gold Coast Water, management of the dam was transferred to Seqwater in July 2008.

Recreational[edit]

Recreation is not permitted at Little Nerang Dam.

See also[edit]

References[edit]

  1. ^ a b c d e f g h i j "Register of Large Dams in Australia" (Excel (requires download)). Dams information. Australian National Committee on Large Dams. 2010. Retrieved 4 July 2014. 
  2. ^ a b "Little Nerang Dam". Water supply: Dams and weirs. Seqwater. 2014. Retrieved 4 July 2014. 
  3. ^ a b c d Harrison, Rod; James, Ernie; Sully, Chris; Classon, Bill; Eckermann, Joy (2008). Queensland Dams. Bayswater, Victoria: Australian Fishing Network. ISBN 978-1-86513-134-4. 

External links[edit]