A Des Moines woman was seriously injured during a collision early Saturday morning in a construction zone on Interstate 35 in Story County. The Iowa State Patrol reports a semi driven by 51-year-old Richard Roy Tomkinson, of Altoon, and a Chevy pickup driven by 46-year-old Katherine Kae Sibert, of Des Moines, were both southbound in the construction zone on a bridge near mile marker 111, when the vehicles collided.

After the impact, the pickup went over a concrete barrier and came to rest on its top. The semi went off the road to the right and came to rest blocking the southbound on-ramp to I-35. Sibert – who was wearing a seat belt – was transported by LifeFlight to Methodist Hospital in Des Moines. The accident happened at around 5:10-a.m.

Ames EMS and Story County Sheriff’s Deputies assisted at the scene.