Milwaukee woman dies in crash in Kilbourn tunnel
The woman killed early Saturday in a single-vehicle crash in the Kilbourn tunnel has been identified as Mary Ann Polacek, 58, of Milwaukee.
Polacek slammed into a wall in the tunnel where it splits to go either into the parking structure or to exit city streets around 6:15 a.m., the sheriff's office said.
An off-duty City of Brookfield firefighter stopped and pulled Polacek out of the vehicle and began administering CPR. Life-saving measures also were attempted by a deputy and Milwaukee Fire Department personnel, but she was pronounced dead just before 7 a.m.
The tunnel was closed until 10:40 a.m. to allow for sheriff's detectives to conduct an investigation. There was no video of the crash. The cause of the accident has not yet been determined.