GSP
GSP in 0.6 MI N Of CR 606, Union County, New Jersey received a condition grade of C (49/100). Built in 1948, the bridge carries 212K vehicles daily on GSP over Lehigh Valley Railroad.
GSP carries a C on the BridgeSafety Condition Score with 49/100. Component ratings sit in the middle of the FHWA NBI distribution; rehabilitation programming is likely on the owning agency’s medium-term horizon.
The bridge was built in 1948 and is now 78 years old, at or past the typical 50-year design life for bridges of its vintage. Maintenance and inspection cycles are correspondingly more involved than for newer structures. GSP carries an average daily traffic count of 211,866 vehicles, with 12 lane(s) crossing Lehigh Valley Railroad. The owning agency is State Toll Authority; bridge inspection records flow into the federal NBI database annually.
Component Ratings
The riding surface, evaluated for cracking, spalling, and wear
Beams, girders, and trusses that support the deck
Piers, abutments, and foundations below the deck
Bridge Details
About This Bridge
GSP is a 78-year-old bridge located 0.6 MI N Of CR 606 in Union County, New Jersey. The bridge carries GSP over Lehigh Valley Railroad with 12 traffic lanes, handling approximately 212K vehicles per day. Built in 1948 and reconstructed in 1976, the structure spans 10.1 meters.
The bridge received a Condition Grade of C (49/100) based on Federal Highway Administration inspection data. Its deck is rated 6/9 (fair), superstructure 5/9 (fair), and substructure 6/9 (fair).
This bridge is owned and maintained by State Toll Authority.
Location Map
Frequently Asked Questions
GSP has a Condition Score of 49/100 (Grade C). Its deck is rated 6/9, superstructure 5/9, and substructure 6/9 on the NBI scale. The bridge is not classified as structurally deficient.
GSP was built in 1948 and reconstructed in 1976, making it 78 years old. The average bridge age in the United States is 48 years.
GSP carries approximately 212K vehicles per day (average daily traffic). The bridge has 12 traffic lanes. It is 10.1 meters long and located on GSP in 0.6 MI N Of CR 606, Union County, New Jersey.
No, GSP is not classified as structurally deficient. All three primary components (deck, superstructure, and substructure) are rated above 4 on the 0-9 NBI scale.
GSP is located 0.6 MI N Of CR 606 in Union County, New Jersey. The bridge carries GSP over Lehigh Valley Railroad. Its coordinates are 40.628108, -74.302753. It is maintained by State Toll Authority.
GSP carries GSP over Lehigh Valley Railroad. The bridge is 10.1 meters long and was built in 1948, with reconstruction in 1976.
Condition Score is calculated from deck (33%), superstructure (33%), and substructure (34%) NBI ratings with an age penalty for bridges over 50 years.
Source: FHWA National Bridge Inventory, 2026.