Each of the three sphere sculptures are 12’ in diameter and are supported by 8’ to 9.5’ tall concrete pedestals. The Schuylkill Beacon is a geodesic sphere containing metal spheres that were strung onto stainless steel cables and anchored to a central star-shaped form. The Stockton Beacon, also a geodesic sphere, contains laminated dichroic glass discs strung onto stainless cables and anchored to a dodecahedron form in the center. Finally, the Fort Washington Beacon is comprised of overlapping ring sections in spherical form that contain laminated dichroic glass discs strung onto stainless steel cables and anchored to a central spherical form. Providence designed both concrete pedestals and footings, and anchorage of the sculptures to the pedestals. Coordinating with the artist, we also specified a durable concrete mix resulting in an aesthetically pleasing and complementary finish for the sculptures.