CTBUH Chapter Event

CTBUH Philadelphia Chapter Presents: Building Tall & Going Deep in the San Francisco Bay Area

Tuesday, 16 February 2021 | Online Event

Building Tall and Going Deep: What It Takes to Support Tall Buildings in the San Francisco Bay Area

Have you ever looked into the sky and wondered, “What does it take to support a tall building?” Perhaps you may have even grown more curious if you are in a dense metropolitan area with challenging geology! This session shows the significance of soil, bedrock, and groundwater conditions and the effect of basement depth in determining the appropriate type of foundation support. It highlights three high-rise buildings in the San Francisco Bay Area on sites with varying subsurface conditions, each with a different basement depth and different type of foundation support. This “tale of three sites” also explores various criteria that have been used to determine the acceptable performance of tall buildings.

A portion of the proceeds are donated to Rebuilding Together San Francisco. This organization provides home repair and renovation programs for their San Francisco neighbors, nonprofit organizations and community spaces.

Sponsored By:


Lori Simpson

Principal & Vice President, Langan Engineering
Oakland, United States
Senior Associate & Vice President, Langan Engineering
Oakland, United States
President & Managing Principal, The Harman Group
Philadelphia, United States


Jim Gardler, BALA Engineers
Robert Voth, Executive Vice President, BALA Engineers
Tonya Zatko, Marketing Coordinator, BALA Engineers
Joseph Gulden, Senior Project Engineer, DeSimone Consulting Engineers
Serge Nalbantian, Vice President, Development & Construction - East, Ensemble Real Estate Solutions & Investments
Simin Naaseh, Senior Principal, Forell / Elsesser Engineers
oswaldo Ortega, Gensler
Sean Canady, Principal, GGLO
James Hakes, Handel Architects
Stefan Abidin, Senior Associate, HOK Architects Corporation
Zachari Toure, Howard University
Johan Greene, Howard University
Hessam Yazdani, Assistant Professor, Howard University
Scott Baker, Building Designer, Individuals
Waziuddin Chowdhury, Individuals
Will M, Student, Individuals
Jessima Nepolien, Individuals
Joy Thomas, Retired, Individuals
Daniel Tracey, Engineer, Individuals
Juan Carlos Esquivel, President & CEO, JCE Structural Engineering Group
Francis Nolan, Architect, Kohn Pedersen Fox Associates
Lloyd Sigal, Principal, Kohn Pedersen Fox Associates
Katherine Platis Grace, Founder, KP Grace Architects PLLC
Aidy Ung, Student, Lafayette College
Emily Carey, Langan Engineering
Conrad Cho, Langan Engineering
MARIA FLESSAS, Langan Engineering
Kate Kubiak, Langan Engineering
Frank L. Rollo, Langan Engineering
Shari Leventhal, Langan Engineering
John McElroy, Senior Associate, Langan Engineering
Michael Paquette, Project Engineer, Langan Engineering
Ailie Vuper, Langan Engineering
Adam Paul, Senior Associate, Longman Lindsey
Wain Owings, LPC West, Inc.
Cody Aaron Furrow, Design Engineer, Magnusson Klemencic Associates
Noah Miner, Malcolm Drilling Co.
Daniel Swaab, Mithun
Steve Nikolaou, Director, Nikolaou Associates
Steven P. Marchetta, N/A, Northwestern Memorial HealthCare
don tylenda, Nucor Skyline
Lydia Fojtik, Rebuilding Together San Francisco
Kelsey Hull, Rebuilding Together SF
Matthew Daw, Simpson Gumpertz & Heger
Tamika Bassman, Stanford University
Alex Dzieman, Stanford University
Boris Parvanov, Managing Partner, Strukto
Tanyo Tanev, Geotechnical Engineer, Strukto
Shobha Bhatia, Syracuse University
Engda Temesgen, Syracuse University
Michael Wysockey, Thatcher Foundations, Inc.
Malcolm Bland, Vice President, The Harman Group
Lea Cosenza, The Harman Group
Kirk Harman, President & Managing Principal, The Harman Group
Albert Meyer Jr, Project Engineer, The Harman Group
Cocou D. Ruben Aza-Gnandji, University of Illinois at Urbana-Champaign
Dafar Obeidat, Graduate Student, University of Illinois at Urbana-Champaign
Courtney Logsdon, Walter P Moore
Kurt Ricci, VP, Webcor Builders
Tim Durso, WR Meadows of PA