Best Office/Retail/Mixed-Use: The Western Hemisphere's Tallest Building
One World Trade Center’s design is filled with twists. The building, standing 104 stories and 1,776 ft, is the tallest building in the Western Hemisphere and the third tallest in the world. To break up the wind at such heights, floor plates were rotated slightly, with floors shrinking 1 ft per story to create a taper.
The 3.5-million-sq-ft office tower required 45,000 tons of structural steel and 200,000 cu yd of concrete to complete.
The project involved approvals from five state and local agencies, 15 separate consultants and more than 50 primary trade contractors. To keep concrete and steel contractors operational and the project on schedule, Tishman handled the daily management of the trades using building information modeling (BIM) software. This saved the project roughly $100 million and reduced the original construction timetable by six months, says Tishman.