Nillahcootie Dam

Last updated

Nillahcootie Dam
Australia Victoria relief location map.jpg
Red pog.svg
Location of the Nillahcootie Dam in Victoria
CountryAustralia
Location Victorian Alps, Victoria
Coordinates 36°52′41″S146°00′10″E / 36.87806°S 146.00278°E / -36.87806; 146.00278 Coordinates: 36°52′41″S146°00′10″E / 36.87806°S 146.00278°E / -36.87806; 146.00278
Purpose
StatusOperational
Opening date1967 (1967)
Operator(s) Goulburn–Murray Water
Dam and spillways
Type of dam Embankment dam
Impounds Broken River
Height34 m (112 ft)
Length791 m (2,595 ft)
Spillway type Gothic arch-shaped crest
Spillway capacity73 m3/s (2,600 cu ft/s)
Reservoir
CreatesLake Nillahcootie
Total capacity40,400 ML (8,900×10^6 imp gal; 10,700×10^6 US gal)
Catchment area 439 km2 (169 sq mi)
Surface area530 ha (1,300 acres)
Website
Lake Nillahcootie at Goulburn–Murray Water

The Nillahcootie Dam, a rock and earth-fill embankment dam with a unique Gothic arch-shaped crest spillway across the Broken River that is located near Mansfield, in the Alpine region of Victoria, Australia. The dam's purpose is for the supply of potable water and for irrigation. The impounded reservoir is called Lake Nillahcootie.

Contents

Location and features

Designed and constructed by the State Rivers and Water Supply Commission of Victoria, the dam was completed in 1967. The embankment dam wall is constructed with an earth core and rock fill, rising to a height of 34 metres (112 ft). [1] The core component materials of the wall include 298 thousand cubic metres (10.5×10^6 cu ft) of rock and earth. The reservoir has a capacity of 40,400 megalitres (8,887×10^6 imp gal; 10,673×10^6 US gal), [2] and can release a maximum outflow of approximately 117,000 megalitres (25,736×10^6 imp gal; 30,908×10^6 US gal) per day in normal operation. [2]

The crest of the uncontrolled spillway is 264.5 metres (868 ft) AHD and the embankment is approximately 791 metres (2,595 ft) long. When full, flood flows spill over a unique Gothic arch-shaped crest. The storage also features a secondary spillway that is operated only during severe floods. It uses the ‘fuse plug' principle, in which a section of earthen embankment within the secondary spillway (the fuse plug) has been designed so that at a predetermined flood level it will be eroded away and increase the discharge through the spillway. [2]

Recreation

It is a popular water-skiing destination, especially during the summer.

The name is of Indian origin and is thought to mean "Blue House".[ citation needed ]

See also

Related Research Articles

<span class="mw-page-title-main">Dartmouth Dam</span> Dam in Victoria

Dartmouth Dam is a large rock-fill embankment dam with an uncontrolled chute spillway across the Mitta Mitta, Gibbo and Dart rivers, the Morass Creek and a number of small tributaries. The dam is located near Mount Bogong in the north-east of the Australian state of Victoria. The dam's purpose includes irrigation, the generation of hydro-electric power, water supply and conservation. The impounded reservoir is called Dartmouth Reservoir, sometimes called Lake Dartmouth. The Dartmouth Power Station, a hydro-electric power station that generates power to the national grid, is located near the dam wall.

<span class="mw-page-title-main">Glenbawn Dam</span> Dam in Hunter region, New South Wales

Glenbawn Dam is a major ungated earth and rock fill with clay core embankment dam with concrete chute spillway plus fuse plugs across the Hunter River upstream of Aberdeen in the Hunter region of New South Wales, Australia. The dam's purpose includes flood mitigation, hydro-electric power, irrigation, water supply and conservation. The impounded reservoir is called Lake Glenbawn.

<span class="mw-page-title-main">Eildon Dam</span> Dam in Victorian Alps, Victoria

The Eildon Dam is a rock and earth-fill embankment dam with a controlled spillway across the Goulburn River, is located between the regional towns of Mansfield and Eildon within Lake Eildon National Park, in the Alpine region of Victoria, Australia. The dam's purpose is for the supply of potable water, irrigation, and the generation of hydroelectricity. The impounded reservoir is called Lake Eildon.

The Waranga Dam is a major earthfill embankment dam with an uncontrolled spillway located approximately 150 kilometres (93 mi) north of Melbourne in the North Central region of the Australian state of Victoria. The impounded off-stream reservoir is Waranga Basin and forms part of the Goulburn River irrigation system, irrigating an area of 626 square kilometres (242 sq mi). The dam and reservoir are located in Shire of Campaspe near the City of Greater Shepparton and is located 8 kilometres (5.0 mi) northeast of Rushworth, 12 kilometres (7.5 mi) southwest of Tatura, and near Murchison. When full, the reservoir covers an area of 58.5 square kilometres (22.6 sq mi).

<span class="mw-page-title-main">Lake Eppalock</span> Dam in North central region, Victoria

Lake Eppalock is an Australian reservoir in North Central Victoria about 130 kilometres (81 mi) northwest of Melbourne. It was formed by the construction of a major earth and rockfill embankment dam, known as Eppalock Dam, with a controlled chute spillway across the Campaspe and the Coliban rivers. The lake is situated between the regional population centres of Bendigo and Heathcote and serves as a major water storage facility for both places, as well as the Campaspe irrigation district. The lake also serves as a popular sports and recreational facility.

<span class="mw-page-title-main">Pejar Dam</span> Dam in Southern Tablelands, New South Wales

The Pejar Dam is an earth and rock-filled embankment dam with an uncontrolled spillway across the Wollondilly River, located in the Southern Tablelands region of New South Wales, Australia. The principal purpose of the dam is to supply potable water for the city of Goulburn. The impounded 9,000-megalitre reservoir is also called Pejar Dam.

<span class="mw-page-title-main">Copeton Dam</span> Dam in New South Wales, Australia

Copeton Dam is a major clay core and rock fill embankment dam with nine radial gates and a gated concrete chute spillway across the Gwydir River upstream of Bingara in the New England region of New South Wales, Australia. The dam's purpose includes environmental flows, hydro-electric power generation, irrigation, and water supply. The impounded reservoir is called Lake Copeton.

<span class="mw-page-title-main">Hinze Dam</span> Dam in South East Queensland

The Hinze Dam is a rock and earth-fill embankment dam with an un-gated spillway across the Nerang River in the Gold Coast hinterland of South East, Queensland, Australia. The main purpose of the dam is for potable water supply of the Gold Coast region. The impounded reservoir is called Advancetown Lake.

<span class="mw-page-title-main">Wivenhoe Dam</span> Dam in South East Queensland

The Wivenhoe Dam is a rock and earth-fill embankment dam with a concrete spillway across the Brisbane River in South East Queensland, Australia. The dam wall is located about 80 kilometres (50 mi) by road from the centre of Brisbane. The primary purpose of the dam is the supply of potable water for the Brisbane and Ipswich regions. The dam also provides for flood mitigation control, hydroelectricity, and recreation. The impounded reservoir is called Lake Wivenhoe and the dam, the lake and a narrow strip of surrounding land forms a locality also called Lake Wivenhoe.

<span class="mw-page-title-main">Maroon Dam</span> Dam in South East Queensland

The Maroon Dam is a rock and earth-fill embankment dam with an un-gated spillway across the Burnett Creek that is located in the South East region of Queensland, Australia. The main purpose of the dam is for irrigation of the Scenic Rim Regional Council region. The impounded reservoir is also called Maroon Dam.

<span class="mw-page-title-main">North Pine Dam</span> Dam in South East Queensland

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.

<span class="mw-page-title-main">William Hovell Dam</span> Dam in Hume, Victoria

The William Hovell Dam is a rock and earth-fill embankment dam with a flip bucket chute spillway across the King River, located in the Hume region of Victoria, Australia. The purposes of the dam are for irrigation and the generation of hydroelectricity. The impounded reservoir is called Lake William Hovell

<span class="mw-page-title-main">Ross River Dam</span> Dam in southwest of Townsville, North Queensland

The Ross River Dam is a rock and earthfill-filled embankment dam across the Ross River, located between Kelso and Mount Stuart in the City of Townsville in northern Queensland, Australia. Built initially for flood control, Lake Ross, the impoundment created by the dam, serves as one of the major potable water supplies for the region.

The Fairbairn Dam is an earth-filled embankment dam across the Nogoa River, located southwest of Emerald in Central Queensland, Australia. Constructed in 1972 for the primary purpose of irrigation, the impoundment created by the dam serves as one of the major potable water supplies for the region and assists with some flood mitigation.

The Lake Clarendon Dam is a rock and earth-fill embankment dam with an un-gated spillway located off-stream in the locality of Lake Clarendon in the Lockyer Valley Region, South East Queensland, Australia. The main purpose of the dam is for irrigation of the Lockyer Valley. The resultant impounded reservoir is called Lake Clarendon.

<span class="mw-page-title-main">Splityard Creek Dam</span> Dam in South East Queensland

The Splityard Creek Dam is a rock and earth-fill embankment dam with an un-gated spillway across the Pryde Creek that is located in the South East region of Queensland, Australia. The sole purpose of the dam is for the generation of hydroelectricity. The impounded reservoir is called the Splityard Creek Reservoir.

<span class="mw-page-title-main">Coolmunda Dam</span> Dam in Coolmunda, Goondiwindi Region

The Coolmunda Dam is an earth–fill embankment dam with a gated spillway across the Macintrye Brook, a tributary of the Dumaresq River, that is located on Darling Downs in Coolmunda, Goondiwindi Region, Queensland, Australia. The main purposes of the dam are for irrigation and potable water supply. The impounded reservoir is called the Lake Coolmunda.

<span class="mw-page-title-main">Six Mile Creek Dam</span> Dam in South East Queensland

The Six Mile Creek Dam 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.

<span class="mw-page-title-main">Ben Chifley Dam</span> Dam in Central West, New South Wales

Ben Chifley Dam, or Chifley Dam, is a rock and earth-fill embankment dam across the Campbells River in the central west region of New South Wales, Australia. The main purpose of the dam is to supply potable water to the city of Bathurst.

<span class="mw-page-title-main">Oberon Dam</span> Dam in Central Tablelands, New South Wales

Oberon Dam or Fish River Dam is a major ungated concrete slab and buttress with earth embankment dam comprising a concrete ski jump chute spillway and fuse plug across the Fish River upstream of Oberon in the Central Tablelands region of New South Wales, Australia. The dam's purpose includes flood mitigation, industrial, and water supply. The impounded reservoir is called Lake Oberon.

References

  1. "Register of Large Dams in Australia" (Excel (requires download)). Dams information. Australian National Committee on Large Dams. 2010. Retrieved 16 July 2014.
  2. 1 2 3 "Lake Nillahcootie". Goulburn–Murray Water . Retrieved 15 July 2014.