Third Avenue Bridge / Bridge Replacement

Replacement of the Third Avenue Bridge over the Harlem River

This project consisted of in-place replacement of the Third Ave. Bridge between Bronx and Manhattan. It required the fabrication and erection of a 350ft new swing span, installation of more than 100,000 ft. of piles, placement of more than 30,000 cubic yards of structural concrete, design and construction of a temporary bridge, fabrication and installation of mechanical and electrical systems for the operation of the new swing span. This project received AISC / NSBA’s 2005 – Merit Award as well as 2005 – Best Bridge Project Award from NY Construction Magazine.


Scope of Work:
  • Demolition of existing bridge
  • Construction of 6ft diameter caissons
  • Cast in place concrete piles
  • Steel H-Piles
  • Structural concrete
  • Structural steel (simple stringers and truss structure)
  • On grade concrete ramps
  • Mechanical systems for moveable bridge
  • Electrical systems for moveable bridge
  • Timber piles and fender system
  • Construction of control house