Watertown Fire Rescue responded to 164th St and 447th Ave for a two vehicle accident involving a semi-truck and minivan around 9:30 AM. Rescue 51 and Medic 2 were assisted by Florence fire for traffic control and debris clean up. The semi-truck had damage to the rear tag axle and the minivan had heavy front end damage and airbag deployment. Driver of minivan was assessed by EMS but not transported to the hospital.