Is you think a somewhat frozen ballast pile is a problem, Joe, just wait until you are tasked with getting frozen ballast out of a string of hopper cars!
That was probably the scariest job I ever had to do during my railroad career. Clumps of ballast the size of a Volkswagen would thump down onto the track, then we'd have to break them up with bars and picks so we could move the car. Someone had to get up on top and beat on the ballast that was stuck up there until it suddenly would thunder down to the bottom of the car. We did not have the luxury of just forgetting about the ballast until spring, either. We had to get it done, and when we successfully unload those five cars, the boss wanted to know why it had taken us so long.