Claim: Denison Bridge is a steel truss bridge, whose load-bearing superstDenison Bridge is an iron truss bridge, whose load-bearing superstructure is made up of connected elements usually in the shape of triangles. ructure is made up of connected elements usually in the shape of triangles.
Evidence: Truss bridge Steel A truss bridge is a bridge whose load-bearing superstructure is composed of a truss, a structure of connected elements, usually forming triangular units.