CR 521
Carrying CR 521 over SWARTSWOOD CREEK
0.18 mi north of CR 622, Sussex, New Jersey
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: CR 521
The CR 521 bridge in Sussex, New Jersey carries CR 521 over SWARTSWOOD CREEK. It was built in 1940, making it 86 years old today. The structure is built primarily of steel and spans 1 section, stretching 14.6 meters (48 feet) end to end. Daily traffic averages 691 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 4/9, superstructure at 5/9, substructure at 5/9. The weakest component sits in poor condition. At least one major component here scores 4 or below, which produces a Poor condition classification under FHWA's current reporting rules. Its NBI inventory load rating is 26.3 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How CR 521 compares
Live comparison across New Jersey.
Historical Sufficiency Rating
PlainBridge-computedFHWA discontinued this calculated item; it does not determine current condition, funding eligibility, posting, or closure. How the historical reference is calculated.
Condition Ratings
Full 0–9 scale + sufficiency-rating breakdown: how condition ratings work.
Structural Details
- Year Built
- 1940
- Material
- Steel
- Number of Spans
- 1
- Structure Length
- 14.6 m (48 ft)
- Deck Width
- 9.5 m (31 ft)
- Owner
- County Highway Agency
- Avg Daily Traffic
- 691 vehicles/day
- Structure Number
- 1900S26
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗Condition Analysis
- • At 4/9, the deck (driving surface) is in poor shape, with advanced wear flagged for priority repair.
- • The superstructure (beams and supports above the deck) is in fair condition (5/9), with minor deterioration that may require routine maintenance.
- • At 5/9, the substructure (piers and abutments) shows fair condition, with minor wear flagged for upkeep.
How to read this record
CR 521 is in the federal Poor condition category. That is a component-based result, not a closure order.
- NBI condition ratings reflect the latest record in this annual dataset, not a live status. Current routine inspection intervals are risk-based.
- Understand what Poor condition does and does not mean before drawing conclusions. Poor condition explained
- Compare CR 521 against other structures in Sussex 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 CR 521?
CR 521 in Sussex, New Jersey has a deck rating of 4/9, superstructure rating of 5/9, and substructure rating of 5/9 on the FHWA's 0–9 scale.
How often is CR 521 inspected?
CR 521'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 691 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. CR 521 is currently shown as Poor condition from its component ratings; that category is not a live closure or safety decision.
What is the inventory load rating for CR 521?
CR 521 has an NBI inventory load rating of 26.3 metric tons.
Who is responsible for maintaining CR 521?
CR 521 is owned and maintained by County Highway Agency.
How old is CR 521 and does age affect safety?
CR 521 was built in 1940, making it 86 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.
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.