FHWA NBI 2024 Inspection record Public-domain dataset

COUNTY ROUTE 651

Carrying COUNTY ROUTE 651 over LOCKATONG CREEK

1.08 MI S OF CR 519, Hunterdon, New Jersey

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Fair
57 t Inventory load rating

Bridge Snapshot: COUNTY ROUTE 651

The COUNTY ROUTE 651 bridge in Hunterdon, New Jersey carries COUNTY ROUTE 651 over LOCKATONG CREEK. It was built in 1898, making it 128 years old today. It was last reconstructed in 1989, extending its service life. The structure is built primarily of steel and spans 1 section, stretching 28.3 meters (93 feet) end to end. Daily traffic averages 743 vehicles, placing it in the lower-traffic tier of New Jersey bridges. It is owned and maintained by County Highway Agency.

The latest FHWA inspection records show a deck rating of 6/9, superstructure at 6/9, substructure at 6/9. The weakest component sits in fair condition. All reported major components score above the Poor range. Its NBI inventory load rating is 57.2 metric tons.

Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.

How COUNTY ROUTE 651 compares

▲ 13.4
Load rating vs New Jersey average (43.8 t)
Top 22%
Higher load rating than 78% of New Jersey bridges
370
Bridges in Hunterdon · 28 in Poor condition
COUNTY ROUTE 651 57.2 t
New Jersey average 43.8 t

Live comparison across New Jersey.

Historical Sufficiency Rating

PlainBridge-computed
71.8 / 100 - historical 50–79.9 band
Structural adequacy /55
55.0
Serviceability /30
5.0
Essentiality /15
14.8
Special reductions
−3.0

FHWA discontinued this calculated item; it does not determine current condition, funding eligibility, posting, or closure. How the historical reference is calculated.

Condition Ratings

Deck
6/9
Fair (5–6)
Superstructure
6/9
Fair (5–6)
Substructure
6/9
Fair (5–6)
Inventory Load Rating
57.2 t
NBI inventory level (metric tons)
Overall Condition
Fair

Full 0–9 scale + sufficiency-rating breakdown: how condition ratings work.

Structural Details

Year Built
1898
Last Reconstructed
1989
Material
Steel
Number of Spans
1
Structure Length
28.3 m (93 ft)
Deck Width
6.5 m (21 ft)
Owner
County Highway Agency
Avg Daily Traffic
743 vehicles/day
Structure Number
10XXK47

Condition Analysis

  • The deck (driving surface) rates fair at 6/9, minor deterioration that routine maintenance should address.
  • The superstructure (beams and supports above the deck) is in fair condition (6/9), with minor deterioration that may require routine maintenance.
  • The substructure (piers and abutments) is in fair condition (6/9), with minor deterioration that may require routine maintenance.

How to read this record

This page shows what the last federal inspection recorded, not whether COUNTY ROUTE 651 is safe to cross today. Here is how to use it.

  • NBI condition ratings reflect the latest record in this annual dataset, not a live status. Current routine inspection intervals are risk-based.
  • Learn how the 0–9 condition scale and Good/Fair/Poor categories are defined. How condition ratings work
  • Compare COUNTY ROUTE 651 against other structures in Hunterdon and across New Jersey. New Jersey bridges
  • Noticed visible damage or a safety concern? Report it to the agency that owns the bridge, or call 911 in an emergency. How to report a bridge

Condition codes come straight from the FHWA National Bridge Inventory and are not a real-time safety judgment. Only the owning agency, a state DOT, county, or other owner, can post, restrict, or close a bridge.

Frequently Asked Questions

What do the condition ratings mean for COUNTY ROUTE 651?

COUNTY ROUTE 651 in Hunterdon, New Jersey has a deck rating of 6/9, superstructure rating of 6/9, and substructure rating of 6/9 on the FHWA's 0–9 scale.

How often is COUNTY ROUTE 651 inspected?

COUNTY ROUTE 651's responsible agency sets its routine interval under FHWA's risk-based inspection rules; this page does not expose the scheduled interval. It carries about 743 vehicles per day.

What does “structurally deficient” mean in older bridge reports?

FHWA retired that reported status beginning with the 2018 archive. COUNTY ROUTE 651 is currently shown as Fair condition from its component ratings; that category is not a live closure or safety decision.

What is the inventory load rating for COUNTY ROUTE 651?

COUNTY ROUTE 651 has an NBI inventory load rating of 57.2 metric tons.

Who is responsible for maintaining COUNTY ROUTE 651?

COUNTY ROUTE 651 is owned and maintained by County Highway Agency.

How old is COUNTY ROUTE 651 and does age affect safety?

COUNTY ROUTE 651 was built in 1898, making it 128 years old and last reconstructed in 1989.

Disclaimer: Bridge condition data is from the FHWA NBI and reflects the last reported inspection. A Poor condition rating is not a live declaration that a bridge is closed or unsafe for travel. For current closure, posting, or safety information, contact the responsible transportation agency.

Data sourced from the Federal Highway Administration National Bridge Inventory. See our methodology for details. Retrieved and formatted by PlainBridges

Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.