Timothy N. Culligan



Timothy Culligan began as an engineer at Severud Associates in 2018 and advanced to senior engineer in 2022. In 2024, Tim advanced to the position of associate. He has worked on all aspects of a wide range of projects, from the analysis and design of the new corporate headquarters at 270 Park Avenue to condition surveys of residential buildings, all in New York City. Tim also has extensive experience with building renovations, such as the lobby and amenity upgrades at 3 Times Square in Manhattan, where he also designed fit-outs for multiple tenants. Tim’s other significant projects include renovation of the high-rise office building at 825 Third Avenue in Manhattan and Steiner Studios Bush Studio at Sunset Park in Brooklyn. On several projects, Tim has been the lead special inspector for concrete and its reinforcement, ensuring the work done on site conforms to the structural requirements. Tim is active with the ACE Mentor Program.


Tim earned a Bachelor of Science in physics from the University of Richmond, Virginia, and a Master of Science in civil engineering from Columbia University.