Overpass
Bridge, road, railway, or similar structure that crosses over another road or railway / From Wikipedia, the free encyclopedia
For other uses, see Overpass (disambiguation).
An overpass, called an overbridge or flyover (for a road only) in the United Kingdom and some other Commonwealth countries, is a bridge, road, railway or similar structure that is over another road or railway. An overpass and underpass together form a grade separation.[1] Stack interchanges are made up of several overpasses.