Queensboro Bridge Biennial Inspection

Project Overview

American Structural Engineering (ASE) served as a DBE sub-consultant to HNTB for the 2020 biennial inspection of the Queensboro Bridge under New York State Department of Transportation. ASE deployed one full inspection team (Team Leader and Assistant Team Leader) to perform detailed structural inspections in coordination with two additional teams. The project scope included full inspection of the main span truss system, Manhattan and Queens approach primary members, and other structural components. ASE was responsible for preparing inspection reports, identifying and issuing new structural and safety flags, inspecting critical and special emphasis members, and updating inventory records. This project also included general bridge inspection, report preparation, inventory updates, and load rating verification in compliance with NYSDOT specifications. The Queensboro Bridge connects the boroughs of Manhattan and Queens and spans the East River via Roosevelt Island. It is a double cantilever truss bridge without suspended spans, featuring two major cantilever spans measuring approximately 1182 ft and 984 ft. The main bridge length is approximately 3726 ft, while the total structure length including approaches extends to over 6000 ft. The bridge is a two-level structure accommodating multiple lanes of vehicular traffic across both levels.

Key Responsibilities