• Corporate HQ, NY
  • Melville, NY
  • Iselin, NJ
  • Ossining, NY
  • Mount Laurel, NJ

2015-2016 Throgs Neck Bridge Biennial Inspection


 


HAKS is performing the 2015 biennial inspection of the Throgs Neck Bridge for MTA Bridges & Tunnels, including the main bridge plus two ramp structures (Queens Side) and a structure below the toll plaza (Bronx Side) and the 2016 special inspection on the main bridge. Five inspection teams are accessing the structure via bucket trucks, 80-foot and 120-foot manlifts, climbing, rope access, and underbridge inspection vehicles. Due to significant traffic in both directions during daytime hours (average daily traffic for the main bridge is approximately 110,000), nighttime inspections are being performed as necessary.

 Project Highlights

  • A primary focus during the field inspections is the condition of the main cables, which require 100% hands-on inspection of all visible cable strands in the suspension bridge anchorages for wire breaks and corrosion.
  • Six suspender ropes per cable are being inspected for the full length utilizing rope access (rappelling) techniques.
  • Advitam/Scanprint software and a tablet computer are being used during the field inspection to integrate field notes, photos, the UBEIS database and NYSDOT forms.
  • HAKS will update the MTA’s UBEIS database, including incorporation of AASHTO element-level inspection requirements.
  • Inspection teams will present their findings in the NYSDOT Inspection Reports, Overall Narrative Report, Paint Condition Report, and Hollow Sounding and Delaminated Concrete Report.
  • HAKS will provide structural drawings for miscellaneous repairs.