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County engineer previews culvert lining option, staffing needs and road priorities
Summary
The county engineer briefed supervisors on a rapid culvert 'slip-lining' technique, striping bids, staffing openings in secondary roads and persistent deterioration on W 14 North.
Mike, the Winneshiek County engineer, told supervisors at the meeting that the county is evaluating a slip-lining product demonstrated by Subsurface Inc. as an alternative to full culvert replacement.
"It's very impressive, very fast," Mike said of the slip-lining process, describing a recent three-culvert job that took a single afternoon and reduced the need for full road closures. He said the lining creates a smoother interior wall, can increase hydraulic capacity and — in the vendor…
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