You are looking at a super bridge ready for your O or even S gauge layout.
Lionel made this one back in 1976, and it is still a good one to have today. Comes with the two rock piers to put underneath and everything you see. The bridge is about 26 inches long. The base of the bridge is metal but the sides are plastic. It also includes two plastic piers.
These look great as a stand alone, but if you have ever lined two or more of these up, you know how awesome that looks.
CONDITION: Looks new to like new in the original box. All components are here. The original box shows some shelfwear.