With autumn nearing an end, Rochester Public Utilities is nearly ready to begin its seasonal draw-down of Lake Zumbro.
RPU plans to begin releasing water from the dam-controlled Lake Zumbro on Sunday to allow for planned maintenance and shoreline restoration work, according to a recent news release. Timing is subject to change depending on rainfall this week.
The draw-down will take the lake from an elevation of 914.5 feet to a target elevation of 911.5 feet. That target elevation would be maintained for one week, from Saturday, Nov. 7 through Saturday, Nov. 14, the release stated.
After Nov. 14, lake refilling would begin and continue until a normal pool elevation is attained, an elevation of about 913 feet. The lake elevation is scheduled to be raised by no more than one half-foot per day while maintaining a minimum release of 70 cubic feet per second.
A normal winter pool elevation would be maintained from November through March next year.
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Lake level information is available at rpu.org and additional Zumbro Hydroelectric Facility information is available by contacting Tony Benson at RPU by phone at 280-1534.
During winter months, RPU recommends these tips for ice safety:
• Be extremely careful during winter activities that involve Lake Zumbro such as ice fishing, snowmobiling or walking on the frozen lake.
• Watch the weather and river flow conditions.
• Ice thickness and condition can vary greatly — be very cautious.
• Look out for ice heaves and exposed logs and snags.
• Be cautious in the vicinity of the dam. De-icing equipment has been installed along the upstream face of the dam resulting in open water and/or thin ice.
• Do not proceed past the warning signs and buoys.