North Pine Dam
| North Pine Dam | |
|---|---|
The dam wall in 2006, with the reservoir at 27% of capacity.
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 Location of the North Pine Dam
in Queensland |
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| Country | Australia |
| Location | South East Queensland |
| Coordinates | 27°15′48″S 152°56′12″E / 27.26333°S 152.93667°ECoordinates: 27°15′48″S 152°56′12″E / 27.26333°S 152.93667°E |
| Purpose | Potable water supply |
| Status | Operational |
| Opening date | 12 August 1976 |
| Construction cost | A$20 million. |
| Operator(s) | SEQ Water |
| Dam and spillways | |
| Type of dam | Gravity dam |
| Impounds | North Pine River |
| Height | 45 m (148 ft) |
| Length | 1,375 m (4,511 ft) |
| Dam volume | 450×103 m3 (16×106 cu ft) |
| Spillway type | Uncontrolled |
| Spillway capacity | 3,700 m3/s (130,000 cu ft/s) |
| Reservoir | |
| Creates | Lake Samsonvale |
| Total capacity | 214,302 ML (47,140×106 imp gal; 56,613×106 US gal) |
| Catchment area | 348 km2 (134 sq mi) |
| Surface area | 2,200 ha (5,400 acres) |
| Normal elevation | 39.63 m (130.0 ft) AHD |
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Website www |
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The North Pine Dam is a mass concrete gravity dam with earth-fill embankments on abutments with a gated spillway across the North Pine River that is located in the South East region of Queensland, Australia. The main purpose of the dam is for supply of potable water for the Moreton Bay region and Brisbane's northern suburbs. The impounded reservoir is called Lake Samsonvale.
The dam is located north-west of Brisbane, within the Moreton Bay region, at Petrie, near the settlements of Whiteside and Joyner.
The North Pine Dam was designed by the Department of Local Government, with the Co-ordinator General's Department supervising construction contracts headed by Transfield. The cost of the dam was A$20 million, and the dam was opened on 12 August 1976 by the Lord Mayor of Brisbane City Council, Alderman Frank Sleeman.
The concrete dam structure is 45 metres (148 ft) high and 1,375 metres (4,511 ft) long. The 450-thousand-cubic-metre (16×106 cu ft) dam wall holds back the 215,000-megalitre (47×109 imp gal; 57×109 US gal) reservoir when at full capacity. From a catchment area of 347 square kilometres (134 sq mi) that includes much of the south–eastern slopes of the D'Aguilar National Park, the dam creates Lake Samsonvale at an elevation of 39.63 m (130.0 ft) above sea level, with a surface area of 2,180 hectares (5,400 acres). The gated spillway, with five steel gates, has a discharge capacity of 3,700 cubic metres per second (130,000 cu ft/s). Initially managed by the Brisbane City Council and then SunWater, management of the dam was transferred to SEQ Water in July 2008 as part of a water security project in the South East Queensland region, known as the South East Queensland Water Grid. The accompanying water treatment plant is also managed by SEQ Water.
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Wikipedia