A Mauston teenager was involved in a one-vehicle rollover accident Tuesday afternoon.  The deputy said about 4pm 16-year old Brianna Rakowski was traveling west on 49th Street in the Town of Lemonweir.  As an oncoming vehicle approached, Rakowski drove the 2005 Ford Escape further to the right.  The SUV entered the ditch.  Rakowski over-corrected and the vehicle rolled onto its roof.  Rakowski and a passenger, 15-year old Laura Zoller of Mauston, were uninjured.