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Lake Superior Level Drops, But Still Above Average

The water level on Lake Superior, seen at Tettegouche State Park in March, has declined from near-record levels. The water level on Lake Superior, seen at Tettegouche State Park in March, has declined from near-record levels. |  Photo: Jon Ellis/WDIO-TV

Created: April 11, 2018 03:20 PM

The water level on Lake Superior dropped during March's dry weather but remains above average, according to the International Lake Superior Board of Control.

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A chart released by the board shows that as of Tuesday, Lake Superior water levels were about 8 inches (21 centimeters) above average, or about 7 inches (19 centimeters) below record highs. The lake had only been 2 inches (5 centimeters) away from setting a record high in February.

Levels now are close to what they were in 2016, but higher than last year. Lake Superior's water level routinely declines in the winter and rises in the spring and summer.

High water levels have caused an increase in shoreline erosion and coastal damage, and the board said last week that additional damage may occur this spring and summer if active weather continues. The board said it is maximizing outflows to the extent possible but emphasized that hydrologic conditions are the primary driver of water level fluctuations.

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