Tractor-trailer driver loses control on 340th Street near R…
Car Crash Iowa Today in Rock Valley, Iowa: On July 1, 2026, at 12:05 PM, the Sioux County Sheriff's Office investigated a motor vehicle accident on 340th Street, two miles southeast of Rock Valley, Iowa. Abdimajid Osman Mahamud, age 34, of South Sioux City, Nebraska, was driving a 2020 Freightliner tractor/trailer eastbound on 340th Street when he lost control, causing the rear of the trailer to enter the south ditch. No injuries were reported. The Sioux County Sheriff's Office was assisted by Sioux County Emergency Management.