Trials have been scheduled for three people charged with arson, accused of burning a covered Iowa bridge featured in the novel “The Bridges of Madison County.” The bridge destroyed April 15 near Winterset also was featured in the 1995 movie adaptation. Court records said Tuesday that 19-year-old Alivia Bergmann is scheduled to go on trial Aug. 29 in Winterset. Eighteen-year-old Joel Davis is scheduled to begin trial Sept. 26.