The tunnel is large and elongated, with its exterior constructed of gray bricks. It has a round solid metal door with red markings, which would open if a monorail were to enter or exit the tunnel. The tunnel itself is inaccessible.
Some rad-rats scavenge in the rubble to the south of the tunnel, and a small wooden overlook is to the north. The overlook holds an ammo box, and a cooking station is at the base of the stairs.