I-85N over Southern RR
FairDavidson County, North Carolina · 0.9 MI.N.JCT.NC47 · Structure no. 000000000570147
- Built
- 1977
- 48 years old
- Condition
- Fair
- inspected April 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 165 ft
- 3 main spans
- Daily traffic
- 29,000
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
I-85N over Southern RR is a steel continuous stringer/multi-beam or girder carrying I-85N over Southern RR in Davidson County, North Carolina. It was built in 1977, so it is 48 years old, older than the North Carolina average of 38.7 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 29,000 vehicles a day, roughly 16% of them trucks, projected to reach 58,000 by 2040. The structure is 165 ft (50.2 m) long and 59 ft wide. If it were closed, the detour would be 0.6 mi (1 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I-85N over Southern RR built?
It was built in 1977, making it 48 years old in 2025.
What condition is I-85N over Southern RR in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in April 2024.
How much traffic does I-85N over Southern RR carry?
About 29,000 vehicles per day (2021 count), of which roughly 16% are trucks.
How long is I-85N over Southern RR?
The structure is 165 ft (50.2 m) long with a longest span of 70 ft (21.3 m) and a deck 59 ft wide.
Who owns I-85N over Southern RR?
It is owned by the State Highway Agency.