In an update to our story this (Thursday) morning, the Cass County Sheriff’s Office says a north east Iowa man escaped injury after he crashed the semi he was driving on Interstate 80 near the Marne interchange. Officials say Cass County deputies responded to a report of a single-vehicle accident on I-80, just after 4-a.m.

The 2007 semi driven by 48-year old Robert Alan Patterson, of Aplington, was eastbound on I-80 when Patterson fell asleep at the wheel. The semi drifted to the right and struck a guardrail and passing beneath the overpass.

Damage to the vehicle is estimated at $7,500. Damage to the guardrail is estimated at $1000. Patterson was cited for Failure to Maintain Control.