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{{Use Australian English|date=May 2013}}{{Use dmy dates|date=
{{Infobox dam
| name = Eucumbene Dam
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Commenced in May 1956 and completed in May 1958, Eucumbene Dam is a major dam, located approximately {{convert|1|km}} northeast of the locality of Eucumbene Cove. The dam was constructed by a consortium comprising the [[NSW Public Works|Department of Public Works]] and Kaiser-Walsh-Perini-Raymond based on engineering plans developed by the [[United States Bureau of Reclamation]] and the Department of Public Works, under contract from the [[Snowy Mountains Hydroelectric Authority]].<ref name=ancold /> Construction of the dam inundated the original township of [[Old Adaminaby]], which was relocated to [[Adaminaby]] in the 1950s, requiring approximately 800 people to be moved.<ref name=ancold />
The outer walls of the dam are built of rock while the inner core is compacted, impervious clay. The earthfill embankment dam wall comprising {{convert|6735000|m3}} of earth and rockfill is {{Convert|116|m}} high and {{Convert|579|m}} long. The foundation of the dam comprises closely jointed hard [[siltstone]] and [[quartzite]] with overburden of decomposed rock and slope-wash up to {{convert|6.1|m}} deep. A subsidiary embankment containing {{convert|121900|m3}} of fill across a low saddle in a ridge forms the left abutment of the dam wall. At 100% capacity the dam wall, with an elevation of {{convert|1168|m}} [[Australian Height Datum|AHD]], holds back {{convert|4798|GL|impgal USgal|lk=in}} or ({{convert|4798|GL|km3 acre·ft|sigfig=4|disp=output only|lk=on}}) of water, approximately equal to nine [[Port Jackson#Sydney Harbour as a unit of measurement|times the volume of Sydney Harbour]]. The surface area of Lake Eucumbene is {{convert|14542|ha}} and the catchment area is {{convert|683|km2}}. The overflow ski-jump and bucket spillway with two vertical lift gates is capable of discharging {{convert|475|m3/s}}. The two gates, each {{convert|6.7|m}} wide by {{convert|3.9|m}} high were constructed during 1977-78 under a separate contract.<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|access-date=10 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]]|access-date=10 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
===Lake Eucumbene===
Lake Eucumbene is the largest reservoir in the Snowy Mountains Scheme and is the central connection for the northern ([[Tumut River|Tumut]]/[[Murrumbidgee River|Murrumbidgee]] rivers) and southern ([[Snowy River]]) halves of the Scheme. The [[Goodradigbee River|Goodradigbee]] and Murrumbidgee rivers from [[Tantangara Dam]] are connected to the Eucumbene River at Lake Eucumbene via the Murrumbidgee-Eucumbene [[Herman Haupt|Haupt]]-tunnel. The Eucumbene River at Lake Eucumbene is connected to the Snowy River at Island Bend Pondage via the {{convert|23.5|km}} long Eucumbene-Snowy Haupt-tunnel; the longest tunnel in the Snowy Mountains Scheme, with a circular [[diameter]] of {{convert|6.3|m}}.<ref name="PHcivil" />
Also at Lake Eucumbene, the {{convert|22.2|km}} long Eucumbene-Tumut Haupt-tunnel diverts the flow of the Snowy River to the Tumut River, empting into Tumut Pond Reservoir; and into the [[
{{wide image|Lake Eucumbene.jpg|900px|Lake Eucumbene, 2006||none}}
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The story of Adaminaby's relocation was the subject of film produced by the Snowy Mountains Authority Film Unit in 1958, entitled ''Operation Adaminaby''. It was also the subject of a 2001 documentary by historian Jeannine Baker, entitled ''Our Drowned Town'', which screened on [[SBS One|SBS Television]]. Entire houses, and even the Commercial Bank building were transported on the back of trucks and over 100 buildings were re-erected at the new townsite.<ref>{{cite web|url=http://www.snowymountains.com.au/about/towns/adaminaby/|title=Adaminaby|work=Snowy Mountains Towns|publisher=Tourism Snowy Mountains|year=2012|access-date=11 May 2013}}</ref> Transportation of the first house from Old Adaminaby to New Adaminaby (a distance of just six miles) took six days.<ref>{{cite web|url=http://australianscreen.com.au/titles/snowy-hydro-adaminaby/clip1/|title=Operation Adaminaby|work=Snowy Hydro|publisher=[[National Film and Sound Archive]]|year=1958|format=Film clips|access-date=11 May 2013}}</ref> Today a tourist village has been built around the handful of buildings which were not relocated from the newly created lakeshore at Old Adaminaby.
When the lake is low, remains of the former township and other relics can be seen along the shoreline. For a period of time around 2007, the waters of Lake Eucumbene had receded due to a prolonged drought and Old Adaminaby began to reveal itself after being underwater for over 50 years
Lake Eucumbene
▲Lake Eucumbene yields a cool and damp climate; mild, stormy summers and cold, snowy winters characterise this climate. [[Frost]]s occur regularly during autumn, winter and spring, and can occur also in summer. [[Snowfall]] can occur at any time of the year (save for Jan and Feb).
{{Weather box
|location =
|metric first = yes
|single line = yes
|precipitation colour = green
|Jan
|Feb
|Mar
|Apr
|May
|Jun
|Jul
|Aug
|Sep
|Oct
|Nov
|Dec
|year
|source = [http://www.bom.gov.au/jsp/ncc/cdio/weatherData/av?p_nccObsCode=139&p_display_type=dataFile&p_startYear=&p_c=&p_stn_num=071040 Australian Bureau of Meteorology; Adaminaby (Yaouk)]
}}
==Gallery==
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==External links==
* {{cite
{{WaterNSW |state=autocollapse}}
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