Names Released in I-29 Fatal Crash Near Sisseton, South Dakota

Northeast Radio SD News – Sisseton, SD - A Brookings woman died Monday afternoon in a two‑vehicle crash on Interstate 29, three miles east of Sisseton.

The South Dakota Department of Public Safety reports the crash occurred at 3:34 p.m. at mile marker 232.

According to preliminary information, Phillip Same Wipf, 52, of Tower City, North Dakota, was driving a 2024 GMC Sierra northbound on I‑29 while pulling a 48‑foot header trailer. At the same time, Marissa Rae Shultheis, 34, of Brookings, was also traveling northbound in a 2022 Honda Ridgeline. As Wipf moved into the passing lane, the Honda collided with the trailer. Shultheis, who was not wearing a seat belt, sustained fatal injuries.

A 13‑year‑old passenger in the Honda, whose name has not been released, was wearing a seat belt and was not injured. Wipf was also uninjured.

Interstate 29 was closed for approximately four and a half hours following the crash.

The South Dakota Highway Patrol continues to investigate. All information released so far is preliminary.

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