Televising shows extensive root intrusion and breaks in Whitmore drainage tile; trustees say lining may not be enough

Kossuth County trustees reviewed televised inspection footage of the Whitmore drainage tile and concluded the pipe has substantial root intrusion, breaks and debris that could limit the effectiveness of a cured-in-place liner.

The presenter who narrated the footage said crews began on the east side of Whitmore and moved west, showing sections of 18-inch concrete and in-town runs of 15-inch clay. The footage, the presenter said, shows cut roots, offsets where lateral tiles join, and clogged segments the crew sometimes skipped while attempting to pass obstructions.

Why it matters: residents along the tile reported basement backups tied to the drained tile’s reduced capacity. Trustees said the tile is their legal obligation to repair to design capacity, and they debated whether lining the pipe would restore sufficient flow or simply provide a reduced-capacity sleeve around persistent blockages.

During the discussion the presenter said, "I don't think you're going to fix that with liner," and added, "The only thing that's really going to fix it is digging it up through town and putting either non-perforated plastic or hard PVC." Those comments framed concern that lining around debris and large intrusions would leave the pipe with substantially less than full capacity.

Trustees and participants also described how the televising contractor handles blockages: crews may stop or skip parts of a run when trying to get past large obstructions; participants estimated typical televising costs from past work at roughly $3,000 for similar runs and suggested jetting contractors commonly bill by the hour (anecdotally about $200/hour). They noted jetter hoses commonly reach 800–1,400 feet depending on equipment, which affects how much of a run can be inspected or cleaned in one mobilization.

Technical details raised in the meeting included the in-town portion measured at about 1,100 feet of 15-inch clay tile to 4th Street, then 18-inch concrete from there to the outlet on the east side of town. The group identified major blockages concentrated east of 4th Street and at several manholes, where tree roots and debris were evident on the video.

Trustees discussed governance options in parallel with repair choices. One path would be for the city council to assume responsibility for the portion inside city limits; that transfer, attendees said, involves a formal process (the trustees noted private trustees would need to hold an election to relinquish control in one example). Until and unless responsibility shifts, the trustees said they remain legally obligated to repair the tile to design capacity.

Next steps the trustees discussed included sharing the footage and a prepared paper report with the City of Whitmore and arranging a joint site visit or briefing so city staff can review the conditions and consider whether to assume responsibility or participate in solutions. No formal repair decision or funding commitment was made at the meeting.

A procedural motion to adjourn was made by Stack and seconded by Garman; members voted in favor and the meeting adjourned at 11:56 a.m.