The bridge seems to be old, with stone pillars supporting its partially destroyed structure. There is a truck blocking a significant part of the path towards the end. After starting The Treacherous Road, there will be multiple traps on the bridge.
Just north of the bridge along the road is a pickup truck with a toolbox and metal box in the back. West from this pickup is a small cache in an alcove of the rock face: a sack with a medium amount of random loot, and an ammo crate. There is also a bed.