US15/501N.RMP
Carrying US15/501N.RMP over US15/US501BUS
0.43 MI.N.JCT.SR1209, Durham, North Carolina
Inventory: FHWA NBI 2024 · last ETL August 2026
FHWA NBI record, refreshed with each annual release.
US15/501N.RMP in Durham, North Carolina sits above 78% of rated North Carolina bridges on inventory load rating (55 t), while its 1981 build year is earlier than 57% of Durham's recorded-year cohort (314 bridges).
US15/501N.RMP in Durham, North Carolina is rated Good in the FHWA's 2024 National Bridge Inventory. Built in 1981, it carries 3 rated components on the inspecting agency's 0-9 scale, and its weakest reported component scores 7. The lowest applicable rating sets the federal condition category, so this Good 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:000000000630048
LATE-CENTURY · STEEL · LONG-SPAN-RUN · TIED-CTRL · HEAVY-ADT · HEAVY-LOAD · CAT-GOOD
- LATE-CENTURY 1980–1999
- STEEL Steel
- LONG-SPAN-RUN 4 spans
- TIED-CTRL Tied control
- HEAVY-ADT Heavy ADT
- HEAVY-LOAD Heavy load
- CAT-GOOD Good
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: US15/501N.RMP
The US15/501N.RMP bridge in Durham, North Carolina carries US15/501N.RMP over US15/US501BUS. It was built in 1981, making it 45 years old today. It was last reconstructed in 1999, extending its service life. The structure is built primarily of steel and spans 4 sections, stretching 94.1 meters (309 feet) end to end. Daily traffic averages 16,500 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 a deck rating of 7/9, superstructure at 7/9, substructure at 7/9. The weakest component sits in good condition. All reported major components score above the Poor range.
How US15/501N.RMP compares
Age against the county: built in 1981, earlier than 178 of Durham's 314 bridges with a recorded construction year (57%), 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).
US15/501N.RMP vs every rated North Carolina bridge
Inventory load rating (metric tons), FHWA NBI, this state
55 Top 22% higher than 78% 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.
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.
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
- 1981
- Last Reconstructed
- 1999
- Material
- Steel
- Number of Spans
- 4
- Structure Length
- 94.1 m (309 ft)
- Deck Width
- 33.1 m (109 ft)
- Owner
- State Highway Agency
- Avg Daily Traffic
- 16,500 vehicles/day
- Structure Number
- 000000000630048
Condition Analysis
- • The deck (driving surface) is in good condition (7/9), showing no significant deterioration.
- • 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) is in good condition (7/9), showing no significant deterioration.
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 US15/501N.RMP 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 US15/501N.RMP 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 US15/501N.RMP?
US15/501N.RMP in Durham, North Carolina has a deck rating of 7/9, superstructure rating of 7/9, and substructure rating of 7/9 on the FHWA's 0–9 scale.
How often is US15/501N.RMP inspected?
US15/501N.RMP'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 16,500 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. US15/501N.RMP is currently shown as Good condition from its component ratings; that category is not a live closure or safety decision.
What is the inventory load rating for US15/501N.RMP?
US15/501N.RMP has an NBI inventory load rating of 55.3 metric tons.
Who is responsible for maintaining US15/501N.RMP?
US15/501N.RMP is owned and maintained by State Highway Agency.
How old is US15/501N.RMP and does age affect safety?
US15/501N.RMP was built in 1981, making it 45 years old and last reconstructed in 1999.
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.