Looks like no room-right?Look at either side of the bridge.You'll see what looks like a cement curb.If you were on a bridge ands couldn't get off in time,all you'd have to do would be to lay down with your shoulder as close as possible to the "curb".There is plenty of room and the train wouldn't even come close.
Yesterday going to Yuma.Speed:65MPH.Made for an interesting ride.