Viaduct

A structure for carrying a road across a gorge, deep ravine, dry valley, or over a crossroad. It rests on tall supports. Unlike an overpass, in which all spans are identical, the large span of a viaduct corresponds to its highest part.

A structure for carrying a road across a gorge, deep ravine, dry valley, or over a crossroad. It rests on tall supports. Unlike an overpass, in which all spans are identical, the large span of a viaduct corresponds to its highest part.