You will have to find an alternative route to get across the channel in downtown Sturgeon Bay starting Monday.  The Michigan Street Bridge will be closed to traffic for two weeks for repairs from damage caused by a semi-truck early this fall.  The bridge will be closed through this Friday and then reopen for the weekend before closing again December 13-17 to finish the repairs.   Drivers should use either the Oregon/Maple Bridge or the Bayview Bridge during the closure.  The Wisconsin Department of Transportation says crews may finish earlier than scheduled depending on weather and conditions.  The Michigan Street Bridge will remain open to marine traffic during the two-week period.