Gregory L. Biesiadecki, PE, LEED AP


Gregory Biesiadecki leads the waterfront and marine engineering team in Langan’s New York City office. He is a geotechnical engineer with over 35 years in the industry.

Biesiadecki has served as principal for countless post-Superstorm Sandy rehabilitation and flood protection projects in the Metro Area, as well as dozens of waterfront structure, shoreline stabilization and protection projects around the world.

Currently, Biesiadecki serves on the Structural Committee and the Special Inspections Advisory Committee for the City of New York Department of Buildings (DOB). He was also the former Chair for the American Society of Civil Engineers (ASCE) Metropolitan Section Geotechnical and Forensics Groups and former member of the Board of Directors and Treasurer.