Koshkonong board declines unilateral ban on seaplanes, cites DNR and FAA authority

The Town of Koshkonong heard complaints Sept. 10 from a resident who said seaplanes landing on Lake Koshkonong are loud, fly low and pose risks to wildlife and boaters, but the town stopped short of taking regulatory action.

"They are very loud and fly at low levels — it’s a danger to wildlife, boating and safety," resident Linn Duesterbeck said, urging the board to act. Chairperson Kim Cheney responded that the Wisconsin Department of Natural Resources and the Federal Aviation Administration hold primary authority over seaplane operations and that a lone town would have limited enforcement power.

"Without the support of the other four towns, Koshkonong would have difficulty enacting an ordinance and has no way of enforcing it," Cheney said. Supervisor George Jaeckel said he did not support banning seaplanes unless the bordering towns agreed. Supervisor Jim Brandenburg noted that boat-patrol officials had not raised concerns at a recent meeting.

The board concluded it would not pursue a unilateral ordinance and that Cheney would speak with the Lake District about next steps. The issue was added to future agendas for further consideration.

Why it matters: Lake Koshkonong is used for recreation and wildlife habitat, and residents argue low-flying seaplanes create noise and safety hazards. Local governments have limited regulatory power over aviation operations, which are typically governed by state and federal agencies.

What’s next: The board will seek input from the Lake District and other towns bordering Lake Koshkonong before considering coordinated action.