The Hospital For Special Surgery – Addition & Alteration
The Hospital For Special Surgery — Addition and Alteration, New York, NY
The use of an innovative steel truss platform system and a complex erection scheme used barge cranes berthed along the sea wall of the East River which enabled the successful expansion of the hospital over the FDR Drive.
Review and approval of over 45 agencies was required including the NYC DOT and the U.S. Coast Guard.
The design met seismic requirements and the 19 foot deep by 96 foot span steel truss platform, was completely fabricated off site in four 4800 square foot sections weighing 800 tons each with all the mechanical elements.
The platform was barged to the site for night time erection during a seven hour window to avoid the morning rush hour. The erection process took five nights to complete.