NC55
Carrying NC55 over THIRD FORK CREEK
0.3 MI E JCT SR1945, Durham, North Carolina
Inventory: FHWA NBI 2024 · last ETL August 2026
FHWA NBI record, refreshed with each annual release.
NC55 in Durham, North Carolina sits above 13% of rated North Carolina bridges on inventory load rating (26 t), while its 1968 build year is earlier than 75% of Durham's recorded-year cohort (314 bridges).
NC55 in Durham, North Carolina is rated Fair in the FHWA's 2024 National Bridge Inventory. Built in 1968, it carries 1 rated component on the inspecting agency's 0-9 scale, and its weakest reported component scores 5. 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 NC:000000000630007
INTERSTATE-ERA · CONCRETE · MULTI-SPAN · CULVERT-LED · HEAVY-ADT · STANDARD-LOAD · CAT-FAIR
- INTERSTATE-ERA 1950–1979
- CONCRETE Concrete
- MULTI-SPAN 3 spans
- CULVERT-LED Culvert-led
- HEAVY-ADT Heavy 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: NC55
The NC55 bridge in Durham, North Carolina carries NC55 over THIRD FORK CREEK. It was built in 1968, making it 58 years old today. The structure is built primarily of concrete continuous and spans 3 sections, stretching 10.0 meters (33 feet) end to end. Daily traffic averages 22,500 vehicles, placing it in the heavily-trafficked tier of North Carolina bridges. It is owned and maintained by State Highway Agency.
The latest FHWA inspection records show culvert at 5/9. The weakest component sits in fair condition. None of this bridge's reported major components fall into the Poor condition range.
How NC55 compares
Age against the county: built in 1968, earlier than 235 of Durham's 314 bridges with a recorded construction year (75%), against a county median build year of 1985. Age is not a defect on its own, but it is the population from which future Poor ratings are drawn.
Live comparison across North Carolina bridges with a recorded inventory load rating (19,160 of 19,210 rated).
NC55 vs every rated North Carolina bridge
Inventory load rating (metric tons), FHWA NBI, this state
26 Top 87% higher than 13% of 19,160 bridges
rated North Carolina 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.
Durham inventory by recorded NBI category
Exclusive Good/Fair/Poor bands across all 314 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
- 1968
- Material
- Concrete Continuous
- Number of Spans
- 3
- Structure Length
- 10.0 m (33 ft) 0
- Owner
- State Highway Agency
- Avg Daily Traffic
- 22,500 vehicles/day
- Structure Number
- 000000000630007
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 NC55 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 NC55 against other structures in Durham and across North Carolina. North Carolina 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 NC55?
NC55 in Durham, North Carolina on the FHWA's 0–9 scale.
How often is NC55 inspected?
NC55'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 22,500 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. NC55 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 NC55?
NC55 has an NBI inventory load rating of 26.3 metric tons.
Who is responsible for maintaining NC55?
NC55 is owned and maintained by State Highway Agency.
How old is NC55 and does age affect safety?
NC55 was built in 1968, making it 58 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.