Menasha rider airlifted after I-41 crash in Theresa; medical outcome unresolved

The northbound Interstate 41 shutdown lasted about two hours. The consequences for a 36-year-old Menasha motorcyclist remain unresolved after a Thursday morning collision in Wisconsin’s Town of Theresa left him with injuries the Dodge County Sheriff’s Office described as potentially life-threatening. Flight for Life flew him from the scene; no later medical outcome has been established. ¹

The rider’s black 2012 Harley-Davidson struck the rear of a blue 2013 Toyota Corolla traveling ahead of it, according to the sheriff’s account reported by WMTV. The rider then lost control and was thrown from the motorcycle. The Toyota’s driver, a 61-year-old Fond du Lac man, was uninjured and stayed at the scene. ¹

The collision happened just after 11:15 a.m. Thursday, October 29, 2026, on northbound I-41 north of State Highway 28 in Dodge County. A sheriff-attributed account published by Washington County Insider puts deputies’ response at approximately 11:18 a.m. The two times describe different points in the incident: the crash and the response. ^{1 3}

The account establishes the sequence of the collision, but not why the motorcycle hit the car. The Dodge County Sheriff’s Office was continuing to investigate. Describing a rear-end impact identifies what happened between the vehicles; it does not, by itself, settle the circumstances that led to it. ¹

The sheriff’s office said the rider was not wearing a helmet. That is a reported circumstance, not an established explanation for the collision. The available account also does not identify his injuries or determine which injuries a helmet might have prevented. Those limits matter when describing a crash whose medical consequences are still unclear. ¹

“Potentially life-threatening” remains the most specific established public description of the rider’s injuries. WMTV’s report, published at 7:19 p.m. Wisconsin time on October 29, repeated that description but did not provide a later hospital condition. It should not be read as an update that he was stable, recovering or in critical condition. ¹

Both men’s names were being withheld pending family notification when the sheriff’s account was released. The information available identifies them by age and hometown, without a subsequent identification or medical update. The most consequential unanswered question is what happened to the rider after his helicopter evacuation. ¹

The emergency response drew personnel from several communities. Lomira Fire Department and First Responders, EMS responders from Theresa, the Knowles Fire Department and Fond du Lac Paramedics assisted. Wisconsin State Patrol, the Washington County Sheriff’s Office and DCERT also helped, alongside Flight for Life and Dodge County deputies. ¹

During the response and investigation, northbound I-41 traffic was diverted onto State Highway 28. The sheriff’s account reported a two-hour interstate closure, and the Fond du Lac Reporter described the duration as approximately two hours. That was a disruption tied to Thursday’s crash, not a report that the lanes remained closed afterward. ^{1 2}

No exact reopening time has been established in the available reporting. Nor do the available Wisconsin 511 records supply an incident-specific clearance timestamp. The reported duration therefore should not be converted into a precise reopening clock time or an assurance about present traffic conditions. ^{2 7 10}

For current travel information, Wisconsin’s Department of Transportation identifies 511 Wisconsin as its up-to-the-minute traffic service. The distinction is straightforward: a report explaining Thursday’s collision and diversion is not a live assessment of the road now. ⁹

The crash details come from the sheriff’s office through local reporting, including Washington County Insider’s sheriff-attributed republication, rather than a directly retrieved agency-hosted release. Those accounts establish the collision, ejection, air evacuation and temporary highway closure. They leave the investigation’s explanation—and the injured rider’s outcome—unresolved. ^{1 3}