The Michigan Street Bridge in Sturgeon Bay was shut down for less than an hour early Wednesday morning due to a traffic accident. City police indicate that a vehicle, driven by a Minnesota man, struck a yield sign on the more than 80-year old span at about 4:30AM. The 48-year old driver from Brooklyn Park, Minnesota escaped injury. He was cited for inattentive driving. City police say traffic was crossing the downtown bridge at about 5AM. Prior to the bridge’s reopening, the Sturgeon Bay Fire Department was called on to clean up fluid that leaked onto the span as a result of the accident. The damaged vehicle was towed away. There was no damage to the bridge.