Rising 841 feet above Grant Street, the US Steel Tower’s triangular roof is the largest roof for a building of its height in the world, and has nearly an acre of rooftop. evolveEA was engaged to develop a strategy for the audacious project of turning the roof into a park in the sky–the highest, largest roof park in the world. As a “first day” visitor’s attraction for the view and location, the roof would also be a park that showcases the innovation in green technologies and materials. evolveEA established the design and technical parameters and outlined a robust...