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{{Use Australian English|date=May 2013}}{{Use dmy dates|date=MaySeptember 20132022}}
{{Infobox dam
| name = Island Bend Dam
Line 10:
| location_map_size =
| location_map_caption = Location of the Island Bend Dam in<br />[[New South Wales]]
| coordinates = {{coord|36|19|10|S|148|28|13|E|type:landmark_region:AU-NSW|display=inline,title}}
| lat_d = 36
| lat_m = 19
| lat_s = 10
| lat_NS = S
| long_d = 148
| long_m = 28
| long_s = 13
| long_EW = E
| coordinates_type = type:landmark_region:AU-NSW
| coordinates_display = inline,title
| coordinates_ref =
| country = Australia
| location = [[Snowy Mountains]], [[New South Wales]]
Line 63 ⟶ 53:
| extra =
}}
'''Island Bend Dam''' is a major ungatedgated [[gravity dam|concrete gravity]] [[dam]] with a [[Spillway#Types|controlled spillway]] across the [[Snowy River]] in the [[Snowy Mountains]] region of [[New South Wales]], [[Australia]]. The dam's main purpose is for the diversion of water for generation of [[hydroelectricity|hydro-power]] and is one of the sixteen major dams that comprise the [[Snowy Mountains Scheme]], a vast hydroelectricity and [[irrigation]] complex constructed in south-east Australia between 1949 and 1974 and now run by [[Snowy Hydro]].
 
The impounded [[reservoir (water)|reservoir]] is called the '''Island Bend Pondage'''.
 
==Location and features==
Completed in 1965, Island Bend Dam is a major dam, located within the [[Snowy RiverMonaro ShireRegional Council]], adjacent to the locality of Island Bend. The dam was constructed by Utah Construction and Engineering Pty Limited based on engineering plans developed under contract from the [[Snowy Mountains Hydroelectric Authority]].<ref name=ancold />
 
The dam wall comprising {{Convert|60400|m3}} of concrete is {{Convert|49|m}} high and {{Convert|146|m}} long. At 100% capacity the dam wall holds back {{Convert|3084|ML}} of water. The surface area of Island Bend Pondage is {{convert|327|ha}} and the catchment area is {{convert|221|km2}}. The controlled spillway is capable of discharging {{convert|2832|m3/s}}.<ref name=ancold>{{cite web|url=http://www.ancold.org.au/wp-content/uploads/2012/10/Dams-Australia-2010-v1-for-website.xls|format=Excel (requires download)|title=Register of Large Dams in Australia|publisher=The Australian National Committee on Large Dams Incorporated|year=2010|accessdateaccess-date=12 May 2013|work=Dams information|archive-date=12 December 2013|archive-url=https://web.archive.org/web/20131212120804/http://www.ancold.org.au/wp-content/uploads/2012/10/Dams-Australia-2010-v1-for-website.xls|url-status=dead}}</ref><ref>{{cite web|title=Dams |url=http://www.snowyhydro.com.au/energy/hydro/dams/ |work=Snowy Mountains Scheme |publisher=[[Snowy Hydro]] |accessdateaccess-date=12 May 2013 |url-status=dead |archive-url=https://web.archive.org/web/20130503080615/http://www.snowyhydro.com.au/energy/hydro/dams/ |archive-date= 3 May 2013 }}</ref>
 
The dam receives water from [[Lake Jindabyne]] and [[Lake eucumbene|Lake Eucumbene]] through the Snowy-Island Bend and Snowy-Eucumbene tunnels respectively. The combined water is then sent West through the Snowy-Geehi trans-mountain tunnel to [[Geehi Dam]] for generation in the [[Murray Hydroelectric Power Station|Murray Power Stations]]. Water can flow the reverse direction, to Eucumbene and Jindabyne from Geehi for storage during periods of high river flow, or otherwise.<ref>{{Cite book |title=Engineering Features of the Snowy Mountains Scheme |publisher=Snowy Mountains Hydro-Electric Authority |year=1972 |isbn=0642955816 |edition=1st |location=Cooma}}</ref>
 
==Climate==
 
{{Weather box
|location = Island Bend, NSW (Island Bend Dam); 1,275 m AMSL; 36° 19′ 59.88″ S
|metric first = Yes
|single line = Yes
|Jan high C = 21.9
|Feb high C = 22.3
|Mar high C = 19.9
|Apr high C = 15.2
|May high C = 11.4
|Jun high C = 8.9
|Jul high C = 5.8
|Aug high C = 7.3
|Sep high C = 10.8
|Oct high C = 15.4
|Nov high C = 17.0
|Dec high C = 20.1
|year high C =
|Jan low C = 6.2
|Feb low C = 6.5
|Mar low C = 4.4
|Apr low C = 1.4
|May low C = -0.8
|Jun low C = -2.5
|Jul low C = -3.1
|Aug low C = -2.2
|Sep low C = -0.2
|Oct low C = 2.9
|Nov low C = 3.3
|Dec low C = 6.2
|year low C =
|precipitation colour = green
|Jan precipitation mm = 61.7
|Feb precipitation mm = 53.5
|Mar precipitation mm = 81.2
|Apr precipitation mm = 87.4
|May precipitation mm = 105.5
|Jun precipitation mm = 140.9
|Jul precipitation mm = 138.2
|Aug precipitation mm = 133.7
|Sep precipitation mm = 134.4
|Oct precipitation mm = 148.8
|Nov precipitation mm = 131.8
|Dec precipitation mm = 113.5
|year precipitation mm =
|source 1 = [http://www.weatherzone.com.au/climate/station.jsp?lt=site&lc=71031 Australian Bureau of Meteorology; Island Bend Dam]
}}
 
==See also==
Line 84 ⟶ 125:
 
==External links==
* {{cite webbook|url=http://www.water.nsw.gov.au/ArticleDocuments/34/water_environment_snowy_report_snowy_flow_expert_panel_report.pdf.aspx|date=May 2009|publisher=NSW Department of Water and Energy|isbn=978-0-7347-5656-5|title=Expert panel environmental flow assessment of various rivers affected by the Snowy Mountains Scheme|author1=Bevitt, R.|author2=Erskine, W.|author3=Gillespie, G.|author4=Harriss, J.|author5=Lake, P.|author6=Miners, B.|author7=Varley, I.|format=PDF}}
 
 
{{Snowy Mountains Scheme |state=autocollapse}}
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[[Category:Snowy Mountains Scheme]]
[[Category:Gravity dams]]
[[Category:Reservoirs and damsDams in New South Wales]]
[[Category:Dams completed in 1965]]
[[Category:Water management in New South Wales]]
[[Category:Kosciuszko National Park]]
[[Category:Murray-Darling basin]]
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