1979 - 1980 Hilltop Plaza
This monumental landmark on a hilltop in Richmond, California consists of twelve precast concrete elements and extends forty feet (12 meters) above the average elevation of the plaza. The sections step down from the central torsion structural element held together with post-tensioned steel cables. The sculpture is surrounded by a landscaped area (40 feet by 40 feet by 60 feet / 12 meters by 12 meters by 18 meters).
Structural engineers: T.Y. Lin International, San Francisco, California