RTE I-78 & RAMP R
RTE I-78 & RAMP R in At Rt 31 Interchange, Hunterdon County, New Jersey received a condition grade of F (0/100). Built in 1948, the bridge carries 130K vehicles daily on RTE I-78 & RAMP R over Beaver Brook. It is classified as structurally deficient.
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
RTE I-78 & RAMP R is a 78-year-old bridge located At Rt 31 Interchange in Hunterdon County, New Jersey. The bridge carries RTE I-78 & RAMP R over Beaver Brook with 8 traffic lanes, handling approximately 130K vehicles per day. Built in 1948 and reconstructed in 1966, the structure spans 10.1 meters.
The bridge received a Condition Grade of F (0/100) based on Federal Highway Administration inspection data. Its deck is rated 0/9 (serious), superstructure 0/9 (serious), and substructure 0/9 (serious). The bridge is classified as structurally deficient, meaning at least one major component is rated 4 or below — this signals a need for repair or replacement but does not necessarily indicate an immediate safety hazard.
This bridge is owned and maintained by State Highway Agency.
Location Map
Frequently Asked Questions
RTE I-78 & RAMP R has a Condition Score of 0/100 (Grade F). Its deck is rated 0/9, superstructure 0/9, and substructure 0/9 on the NBI scale. The bridge is classified as structurally deficient.
RTE I-78 & RAMP R was built in 1948 and reconstructed in 1966, making it 78 years old. The average bridge age in the United States is 48 years.
RTE I-78 & RAMP R carries approximately 130K vehicles per day (average daily traffic). The bridge has 8 traffic lanes. It is 10.1 meters long and located on RTE I-78 & RAMP R in At Rt 31 Interchange, Hunterdon County, New Jersey.
Yes, RTE I-78 & RAMP R is classified as structurally deficient because at least one of its primary components (deck, superstructure, or substructure) is rated 4 or below on the 0-9 NBI scale. This does not necessarily mean it is unsafe, but it requires significant repair or replacement.
RTE I-78 & RAMP R is located At Rt 31 Interchange in Hunterdon County, New Jersey. The bridge carries RTE I-78 & RAMP R over Beaver Brook. Its coordinates are 40.638219, -74.886881. It is maintained by State Highway Agency.
RTE I-78 & RAMP R carries RTE I-78 & RAMP R over Beaver Brook. The bridge is 10.1 meters long and was built in 1948, with reconstruction in 1966.
Condition Score is calculated from deck (33%), superstructure (33%), and substructure (34%) NBI ratings with an age penalty for bridges over 50 years.