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Gray's Bay dam closed for season

December 5, 2016


We've closed the Gray's Bay dam, which regulates the flow of water between Lake Minnetonka and Minnehaha Creek, for the season. It is the second-straight year in which unseasonably late rains kept the dam open later than usual. Last year's closure date of December 21 was the latest on record -- the year before, the dam closed before Halloween.

The MCWD operates the dam according to a procedure approved by the Minnesota Department of Natural Resources that mimics historic water levels. The plan for the calls for the dam to stay open until Lake Minnetonka dips below 928.6 feet above sea level, in order to make room for the spring snow melt and reduce the chances of flooding on the lake and creek.

Learn more about water levels and the District's dam operations.