About 8:37 p.m., c.s.t., on October 30, 1980, two locomotive units and seven of eight cars of southbound Amtrak passenger train No. 21, the Inter-American, derailed while moving through a No. 10 main track turnout on the Illinois Central Gulf Railroad (ICG), at Springfield, Illinois. Of the 96 passengers and 12 train crewmembers on board, 4 passengers and 2 train crewmembers were injured. Both locomotive units and a sleeping car were overturned and incurred extensive damages. Total damage was estimated at $593,000.