Winnebago County officials review flooded fields, tile maps and possible choke points

Officials and residents at a Winnebago County Board of Supervisors meeting discussed ongoing drainage problems after weeks of high water, identifying ponding across cropland, a tile blowout under a roadway and several possible choke points where tile sizes drop sharply.

The discussion began when an Auditor’s Office representative, Chris, reported that “water's starting to actually go down” in many ditches but that some low spots remain flooded, including areas east of town and across Highway 9. Brian Miller, who said he had “water where he's never had water,” showed pictures of a tile under a road that was “like a dam splitting loose.” Chris and others noted water sitting on driveways and fields belonging to Aiden Kelly and Kelly Raukes and said some areas could remain wet “weeks” before draining.

Why it matters: county-maintained tile and ditch systems affect farm access, private driveways and roadway stability; persistent surface water also increases the risk of blowouts and erosion during harvest and could require engineering review or repair work.

Participants pointed to two likely local causes. First, trees and vegetation near intake locations may be blocking flow; speakers named Jim Donchies’ property (transcribed as Donchi/Donchies) as a place to check for tree blockages. Second, county tile maps show abrupt size changes—examples discussed include runs drawn as 24-inch to 22-inch, 26-inch to 22-inch, then jumping back to 34-inch—that create apparent choke points under roads. One speaker described seeing 24 down to 22 and later a jump to 34, calling that configuration “a choke point.” The drainage system at issue lies in a joint drainage district that spans three counties, which the group noted could complicate repairs and reclassification.

Discussion led to next steps rather than a vote. Staff agreed to inspect an intake where a main tile crosses the highway and to look for tree blockages on the north side of the affected flow. Chris said he would “try to get to that intake where it crosses the highway and see if it's flowing there” sometime this week. Commissioners also suggested the county have an engineer evaluate the highway crossing and the choke point under the highway to determine whether reclassification, pipe upsizing, or other engineering work is warranted. Several speakers cautioned that large rerouting or engineered solutions could be expensive and that individual property fixes, such as raising a driveway, might be a practical short-term response for some homeowners.

No formal motion or vote on repairs, reclassification or contracting an engineer occurred during the discussion. The county did not set a firm timeline for an engineering review; staff committed to initial on-site checks and follow-up reporting to the board.

Ending: County staff will inspect the highway intake and check the identified tree obstructions; staff and supervisors said they will report findings and possible next steps back to the board once the site checks and any needed mapping verification are complete.