Residents, staff debate responsibility and fixes after county forbay clogs with corn residue

A lengthy discussion at the county meeting focused on a small forbay and downstream pond that residents say has become clogged with corn residue and debris, leaving a "mess" in the larger pond and pushing water up to the road.

Mark, the nearby property owner who raised the issue, described repeated flows of stalks and trash from adjacent fields and said the forbay is now a "rock mix" that fails to trap debris. "If we get a 2 and 1/2 3 in rain it it's like a boiling pot of water and everything boils out over the little rock spillway," Mark said, describing how the system overflows during large storms.

A county staff member who reviewed project records and inspected the site said a forbay is "not intended to catch just everything," explained that the forbay measures roughly 10 feet deep and about "60 foot wide and 130 ft long," and noted the original rock outlet design can plug and requires mechanical clearing. Staff also said the original project routed tile flow to that location as part of an egg drainage well closure project and that "the state of Iowa paid for 75% of that project" with the drainage district covering the remainder.

Board members and residents discussed several possible short‑term mitigations — silt fence, woven wire or hog panels to trap residue before it crosses the road, grass waterways and conversations with the upstream landowner — and cautioned that some fixes risk creating obstructions that could back up water on upstream lands. One member said fencing or silt fence would likely be the least‑cost, immediate option; others warned maintenance would be ongoing and could be expensive if dredging is required.

The board did not adopt a formal remedy at the meeting. Instead, members agreed that county staff and Bruce will speak with the upstream landowner and that staff will inspect the site to explore conservation practices and practical short‑term measures before returning with recommendations.