40' Pipe B
A load of 40' long 18" diameter pipes sized for a 52 or 65 ft gondola. Could also be used for a flatcar, but better with a gondola. The idea is the load shifted and one of the supports snapped.
This photo was used as the reference for this load: https://danrisdon.smugmug.com/Trains/Gondola-Coil-Car/i-snZm3PV/A