. "Pennsylvania Railroad Improvements, Swing Bridge" . "South Wilmington Causeway Bridge" . . "Wilmington Rail Viaduct" . . . . . . . . . "Wilmington Rail Viaduct" . . "Pennsylvania Railroad Improvements, Brick Arch Viaduct" . . . . . . "44515.4206464" . . . . . . "99001276" . . . . . . . "1902" . . . . . "1902" .