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Structural Engineers Association of New York

Three Supertall Slender Towers in Midtown Manhattan

  • 30 May 2024
  • 6:30 PM - 8:00 PM
  • Skidmore, Owings & Merrill 7 World Trade Center 250 Greenwich Street 27th Floor
  • 0


Registration is closed

SEAoNY Programs Committee, with IABSE and SEAoI, Presents:

Three Supertall Slender Towers
in Midtown Manhattan

DATE: Thursday, May 30, 2024 

TIME: 6:30 - 8:00 PM

LOCATION: Skidmore, Owings and Merrill
7 World Trade Center
250 Greenwich Street
27th Floor

1 PDH Available

One Manhattan West, Two Manhattan West and 35 Hudson Yards are three slender supertall towers recently designed and engineered by the authors' company that rise above the underground train tracks approaching New York City’s Penn Station on the west side of the island of Manhattan. Although the slender towers are neighbors and have similar heights and proportions, each tower resolves the constraints of the underlying tracks with unique structural approaches. The disparate below-ground conditions result in three distinct structural solutions that are all governed by the effects of the wind. All three towers were subjected to extensive wind tunnel testing programs in order to optimize their dynamic behavior. The paper in the IABSE Journal Structural Engineering International (SEI) describing this project won the 2023 IABSE Outstanding Paper Award (OPA).

Registration Fees:
SEAoNY Members* - $30
IABSE Members** - $30
Non-Members - $45

*Members must log in to their SEAoNY accounts to receive membership discount on registration.  (Students, did you know student membership is free?! Inquire about free student membership at

**IABSE members must obtain a code in order to get the SEAoNY member rate. 

Sustaining Members & Corporate Sponsors interested in using their free event registration should email for the registration code.

Registration ends Wednesday, May 29, 2024

William Baker is a structural engineering consulting partner at Skidmore, Owings & Merrill, where he led the structural engineering practice for over 20 years. Since joining SOM in 1981, he has endeavored to extend the profession of structural engineering through design, research, teaching, and professional activities. He is a Member of the U.S. National Academy of Engineering and an International Fellow of the Royal Academy of Engineering U.K. He’s best known for developing the “buttressed core” structural system for the Burj Khalifa, the world’s tallest manmade structure. He is actively involved with numerous professional organizations and institutions of higher learning and is an Honorary Professor at the University of Cambridge.

Charles Besjak has more than 35 years of experience pairing innovative structural systems with architectural design. Throughout his career as both a licensed architect and licensed structural and professional engineer, Mr. Besjak has contributed his innate creativity and structural engineering insight to countless design projects. He has experience in a range of typologies, including corporate and commercial office, healthcare, education and transportation.

Preetam Biswas is Principal of Structural Engineering at the SOM New York office with a wide range of international project experience. He has significant experience designing innovative structural systems for super-tall towers, long-span structures and specialty structures such as cladding systems and cable wall systems.

Georgi Petrov is practicing architect and structural engineer and space architect. He is a Senior Associate Principal in the structures group at the New York office of Skidmore, Owings & Merrill, where he works on highrises and long span structures around the world. He is a licensed Architect and Professional Engineer. He is an adjunct professor at NYU where he teaches Design of Tall Buildings.

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Event, Cancellation & Photo Policies:

SEAoNY will accept refund requests made in writing no later than Monday, May 27, at 5:00 p.m. ET. Registration fees are not refundable after this date.

By registering for this SEAoNY event, I give consent for my photograph to be taken or presence recorded and possibly used on the organization’s intranet, internet, newsletters, board reports, and other organizational materials as needed. I understand that I am not eligible for compensation for use of my photo and I may not be informed in advance of the specific use of those images.



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