The Rise & Fall of Lake Eucumbene

Lake Eucumbene Water Levels 1997 - 2019

The Rise and Fall of Lake Eucumbene


The water levels at Lake Eucumbene fluctuate from season to season and from year to year. This fluctuation is largely driven by the amount of rainfall in the mountains, spring snow melt and legislated environmental water releases.

Data from Snowy Hydro Limited (
www.snowyhydro.com.au) shows that, in general, the lake reaches a peak in late spring and early summer, and slowly falls from late December, reaching its lowest levels around July each year.

Records show the highest Lake Eucumbene has been in the last 23 years was back in November 1998 when the lake was 86.4% full. In more recent years, drought and limited snow run-off has reduced the lake to alarmingly low levels. In fact, on 14 July 2007 Lake Eucumbene fell to just 8.7% of capacity – the lowest level seen since the lake was filled way back in 1958.

When levels are low, many parts of the lake are left high and dry. For example, Providence Portal (where the Eucumbene river flows into Lake Eucumbene) had no reliable water for boating between late 2006 and early 2012.  Boating returned briefly to the Portal area during 2015 and 2016, but falling lake levels have seen little to no boating since.  Water returns to the Portal when the lake rives above 40%, but boating remains difficult until levels reach over 50%. That said, fishing in the river at Providence Portal (in the open season) can yield some nice brown trout.

1990

1990

Yens Bay - Lake Eucumbene - June 1990.jp

1990

Lake Eucumbene at 27% in December 2010.J

2010

Lake Eucumbene trees in Yens Bay - Jan 2016

2016

Catholic Church steps at Lake Eucumbene-

2009

Old Adaminaby - 50% tree - Aug 2015.JPG

2015

The tree at Trout Island - Lake Eucumben

2018

Lake Eucumbene at 54% - January 2012.JPG

2012

Lake Eucumbene trees in Yens Bay - Jul 18

2018

Catholic Church steps at Lake Eucumbene-

2010

The 50% tree at Lake Eucumbene - August

2018

Lake Eucumbene Tree - April 2019.jpg

2019

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Yens Bay in January 1990 - The last time Merino Island was actually an island