RT 521 NB
Carrying RT 521 NB over FORMER SCRANTON BRANCH
1.17 MI S OF RT 94 JCT, Warren, New Jersey
Inventory: FHWA NBI 2024 · last ETL August 2026
FHWA NBI record, refreshed with each annual release.
RT 521 NB in Warren, New Jersey sits above 30% of rated New Jersey bridges on inventory load rating (32 t), while its 2006 build year is earlier than 5% of Warren's recorded-year cohort (268 bridges).
RT 521 NB in Warren, New Jersey is rated Fair in the FHWA's 2024 National Bridge Inventory. Built in 2006, it carries 2 rated components on the inspecting agency's 0-9 scale, and its weakest reported component scores 6. The lowest applicable rating sets the federal condition category, so this Fair result describes the weakest reported component rather than the structure as a whole. No NBI category is a closure decision or a live crossing-safety verdict.
NBI record plate
Structure NJ:2153169
POST-2000 · CONCRETE · SINGLE-SPAN · SUB-LED · ARTERIAL-ADT · STANDARD-LOAD · CAT-FAIR
- POST-2000 2000+
- CONCRETE Concrete
- SINGLE-SPAN Single span
- SUB-LED Substructure-led
- ARTERIAL-ADT Arterial ADT
- STANDARD-LOAD Standard load
- CAT-FAIR Fair
Inspection-sheet codes from this record’s year, material family, spans, controlling component, ADT, inventory load, and NBI category, not a live closure verdict.
Bridge Snapshot: RT 521 NB
The RT 521 NB bridge in Warren, New Jersey carries RT 521 NB over FORMER SCRANTON BRANCH. It was built in 2006, making it 20 years old today. The structure is built primarily of concrete and spans 1 section, stretching 18.3 meters (60 feet) end to end. Daily traffic averages 1,814 vehicles, placing it in the moderately-trafficked tier of New Jersey bridges. It is owned and maintained by Unknown.
The latest FHWA inspection records show superstructure at 7/9, substructure at 6/9. The weakest component sits in fair condition. None of this bridge's reported major components fall into the Poor condition range.
How RT 521 NB compares
Age against the county: built in 2006, earlier than 14 of Warren's 268 bridges with a recorded construction year (5%), against a county median build year of 1953. This is one of the newer structures in its county.
Live comparison across New Jersey bridges with a recorded inventory load rating (6,826 of 6,827 rated).
RT 521 NB vs every rated New Jersey bridge
Inventory load rating (metric tons), FHWA NBI, this state
32 Top 70% higher than 30% of 6,826 bridges
rated New Jersey bridges, bucketed by value
Each bar is a band; taller bars hold more bridges. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source FHWA National Bridge Inventory · August 2026
Condition Ratings
Full 0–9 scale + sufficiency-rating breakdown: how condition ratings work.
Reported 0–9 component ratings from the FHWA NBI. The highlighted component is the lowest reported input to this record’s current condition category; it is not a closure or live crossing-safety decision.
Warren inventory by recorded NBI category
Exclusive Good/Fair/Poor bands across all 268 bridges in this county. Orthogonal to this structure's component profile above: a county catalog share, not a live crossing-safety verdict.
Structural Details
- Year Built
- 2006
- Material
- Concrete
- Number of Spans
- 1
- Structure Length
- 18.3 m (60 ft)
- Deck Width
- 8.3 m (27 ft)
- Owner
- Unknown
- Avg Daily Traffic
- 1,814 vehicles/day
- Structure Number
- 2153169
Condition Analysis
- • At 7/9, the superstructure (beams and supports above the deck) is in good shape and shows no significant wear.
- • The substructure (piers and abutments) rates fair at 6/9, minor deterioration that routine maintenance should address.
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗How to read this record
This page shows what the last federal inspection recorded, not whether RT 521 NB 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 RT 521 NB against other structures in Warren 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 RT 521 NB?
RT 521 NB in Warren, New Jersey, superstructure rating of 7/9, and substructure rating of 6/9 on the FHWA's 0–9 scale.
How often is RT 521 NB inspected?
RT 521 NB'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 1,814 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. RT 521 NB 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 RT 521 NB?
RT 521 NB has an NBI inventory load rating of 32.4 metric tons.
Who is responsible for maintaining RT 521 NB?
RT 521 NB is owned and maintained by Unknown.
How old is RT 521 NB and does age affect safety?
RT 521 NB was built in 2006, making it 20 years old.
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.
Share this inspection record
Send this source-bounded record or download its data card. An NBI condition category is not a closure or live crossing-safety verdict.
Every figure on PlainBridges is rendered directly from federal source data, no number is typed in by an editor. Component ratings, ADT, and condition category on this page are copied from the NBI record for this structure; no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2024 NBI release. NBI condition categories reflect the latest reported inventory record, not a live safety, closure, or travel decision.