Types of  

        Deck Arch - the arch in a deck arch bridge is below the roadway

        Through Arch - also called the bowstring or tied arch, the roadway is below the arch.  The arch is anchored at each end of the roadway.

        Half-Through Arch - the roadway cuts through the arch - not above nor below it.

        Girder Bridge - bridge that is made of a solid beam that is supported at each end by piers.

        Cantilever Bridge - made with two cantilevers, one at each side, with the gap in the middle bridged by a beam.  The middle beam is supported by the two outside beams.

        Truss Bridge - A truss bridge is assembled from a framework made of triangles and piers and connected with horizontal beams.

        Suspension Bridge - two continuous steel cables that pass over two towers suspend the roadbed and are anchored securely to each end of the bridge.

        Cable-Stayed Bridge - The deck of a cable-stayed bridge is supported from cables connected directly to one or two towers.

        Pontoon Bridge - A pontoon bridge is a floating bridge