WSP USA conducts biennial inspection of the Verrazano-Narrows Bridge in New York City.



  • Staten Island, New York, USA


  • Roads and Bridges
  • Transportation and Infrastructure
  • (View all)


  • MTA’s Triborough Bridge and Tunnel Authority (TBTA)

Project Status

  • Ongoing

Biennial Inspections

The Verrazano-Narrows Bridge is the world’s 13th-longest suspension span bridge, and was the longest from its opening in 1964 through 1981. Located at the mouth of the upper New York Bay, the bridge not only connects Brooklyn with Staten Island, but is also a major link in the interstate highway system, providing the shortest route between the middle Atlantic states and Long Island.

This double-decked bridge carries 12 lanes of traffic over the Narrows and Belt Parkway. This bridge is a 13,200-foot-long structure with a 4,260-foot-long main center suspension span flanked by two side spans, each 1,215 feet long. WSP USA performed the 2012 biennial inspection of the Verrazano-Narrows Bridge and previously completed the 2008, 2004 and 2000 biennial and 2009, 2005 and 2001 special inspection of this structure.


Key Numbers

Bridge Length
13,200 feet
Main Suspension Length
4,260 feet
1.5 million square feet
World Rank
13th Longest Suspension Bridge

Bridge Access

WSP utilized up to six inspection teams to perform the inspection and associated tasks. A variety of access methods were used that included high lifts, bucket trucks, underbridge inspection units, free climbing, and necessary MPT.

For the 2000 contract, the firm also inspected more than 1.5 million square feet of pavement on the Verrazano-Narrows Bridge. The firm also performed special inspections in 2009, 2005 and 2001.

In order to keep track of the inspection work performed on our TBTA projects, WSP has maintained and managed databases ranging in size up to more than 72,000 records. The firm has also written thousands of lines of program code to create user interfaces and report routines.