Authorities say a woman suspected of drunken driving drove her car off an interstate overpass in West Des Moines before rolling down an embankment.
The West Des Moines Police Department says 29-year-old Cassandra Ann Beverly, of Waukee, was found inside her car around 2 a.m. Thursday under the Interstate Highway 235 bridge.
The Des Moines Register reports Beverly had to be extricated from the car, which was found with its underside resting against a concrete barrier.
Police say Beverly, who suffered a fractured neck and collapsed lung, had bloodshot eyes and smelled of alcohol. A preliminary breath test showed a blood alcohol level of .129.
They newspaper reports that police plan to issue citations for OWI and failing to maintain control.