Overpass is called "viaduct" in Dutch, though a multi-lane overpass is often colloquially called a tunnel. We do have tunnel-like structures for what technical

Overpass is called "viaduct" in Dutch, though a multi-lane overpass is often colloquially called a tunnel. We do have tunnel-like structures for what technically are overpasses, eg.: bike path next to a river; major multilane road crosses river+bikepath; resulting structure for bike path is a tunnel (Dommeltunneltje in Eindhoven), though doesn't go underground.