


18th Street Railroad Bridges
St. Charles Air Line Bridge and Baltimore and Ohio RR / Chicago Terminal Bridge
Structure Type = Metal Rivet-Connected Warren Through Truss, Movable: Strauss Bascule (Heel Trunnion)
Built = 1919 By Builder/Contractor: American Bridge Company of New York, New York and Engineer/Design: Strauss Bascule Bridge Company of Chicago, Illinois
Main Span Length = 220 Feet