Lake district approves project
The project consists of installing a manhole with a slide gate, over the existing storm sewer below the lake bed.
"Cutting into the storm sewer, could draw the lake down another foot to foot and a half, leaving only the channel," said Jerry Harvancik, lake district president. "This is not going to benefit everyone equally, but the bottom line is that it will benefit the entire lake as a whole."
Harvancik said the project's primary purpose is to drain the lake below the dam floor,
"The whole idea is to bring the water level down lower so that more silt and aquatic weeds will be exposed to the open air," Harvancik said.
"One of the problems with the draw down is that the lake is actually shallower now than when we started," said Cliff Schmidt. "This valve will help to get the lake back to where we started and will eventually help in gaining depth."
"Once the water level is back to where it was, it will leave more exposed water," added Cliff Mischler.
It was noted that opening the gate could cause backing up of the storm sewer under certain conditions.
"We will have people in place to make sure that this does not happen," said Harvancik. "At no time, will the valve be open for long periods of time."
The slide gate will need to be operated periodically and sediment removed from the manhole and influent sewer. The valve will be next to the shoreline, near the dam. The channel connecting the stream bed to the inlet may also need to be cleaned periodically.
Estimated cost of this project is $63,630. Harvancik stated that approximately $11,000 has already been invested into the project, with most of the engineering costs already covered.
The village of Iola will get a loan at 4.5 percent interest to be paid by the lake district. The length of the loan will be determined at the next regularly scheduled meeting.
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