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Structural Engineers Association of New York

DOB Code Update Training Series: Underpinning/Geotech

  • 12 Jul 2022
  • 12:00 PM - 1:30 PM
  • Zoom Webinar


  • PDH certificates are not available for student registration.
  • Email for code

SEAoNY DOB Code Update Training Series:


July 12, 2022

12:00 PM - 1:30 PM 

Zoom Webinar

Join us for the third session of a four-part series of educational training sessions on the new DOB Code updates.

Presented by Joseph Ackroyd, PE, CFM and Dan Eschenasy, PE, F.SEI

Course Description:

In this training, in an effort to protect the health, safety and welfare of building occupants, workers and the public, participants in this course will learn about significant changes in the 2022 Building Code with respect to updated requirements in the geotechnical provisions. Participants will analyze new provisions for soils and foundations including geotechnical peer review. Participants will also examine new design requirements for support of adjacent buildings during excavation including underpinning and alternative methods of support.

Learning Objectives:

  1. Participants will discuss changes in the NYC Building Code related to design of underpinning as a support of excavation and design of underpinning as a permanent structure in order protect the health and safety and welfare of the workers and the public.
  2. Participants will review methods of evaluating adjoining structures in order to protect the health and safety and welfare of the workers and the public.
  3. Participants will review the process required by the 2022 Building Code to ensure safety of occupants of adjoining buildings and construction workers.
  4. Attendees will review examples of past excavations and underpinning accidents in order to mitigate safety risks.


Joseph Ackroyd, Professional Engineer and Certified Floodplain Manager, serves as Assistant Commissioner for Technical Affairs & Code Development at the NYC Department of Buildings (DOB). He is distinguished in the examination of soil and other stability factors that support the load of new structures above and below ground.

At DOB, Joseph provides technical expertise and manages a team of design professionals who ensure safe construction. He is the chair of DOB’s Buildings Code Revision Committee and sits on the International Code Council (ICC) Committee where he is part of the team that updates the Building Code to mirror trends in construction and safety. As a member of the American Society of Civil Engineers (ASCE) 24 Committee, Joseph provides valuable natural disaster insight.

Dan Eschenasy, Professional Engineer and Fellow of the Structural Engineering Institute has over 30 years of structural engineering experience, with an emphasis on the performance of existing buildings and structures. Recently retired from decades as the New York City Department of Buildings’ Chief Structural Engineer, Dan has investigated numerous building and retaining wall accidents, especially old masonry structures and facades. He has performed several forensic investigations of failures of construction installations. (formwork, underpinnining, cranes).

Dan regularly publishes and presents on a range of topics including facades, wind effect on temporary installations and issues related to construction in dense city environments.

1.5 PDH pending

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