In addition to being a functional work of art, the Sundial Bridge is a technical marvel as well. The cable-stayed structure has an inclined, 217-foot pylon constructed of 580 tons of steel. The deck is made up of 200 tons of glass and granite and is supported by more than 4,300 feet of cable. The structure is stabilized by a steel truss, and rests on a foundation of more than 115 tons of steel and 1,900 cubic yards of concrete. The McConnell Foundation funded the majority of the bridge's cost.