You are in the CarrTracks website Picture Gallery.
Norfolk and Western Extra 6197 South was moving onto the B&O trackage when the brake rigging on TPW 50569 caught on the rail at a switch. Fortunately, this lifted the rear of the rear truck up enough to cause the box car to uncouple from the trailing covered hopper (CR 889983), the air hoses uncoupled and this set the air brakes on the whole train.
The rear truck of the boxcar did chew up part of the highway at the railroad crossing. Disk 119