I77 Sbl over Southern R.R.(abandoned)
FairIredell County, North Carolina · 0.1 MI.N.JCT.US21 &NC115 · Structure no. 000000000970106
- Built
- 1968
- 57 years old
- Condition
- Fair
- inspected May 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 159 ft
- 3 main spans
- Daily traffic
- 27,000
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
I77 Sbl over Southern R.R.(abandoned) is a prestressed concrete stringer/multi-beam or girder carrying I77 Sbl over Southern R.R.(abandoned) in Iredell County, North Carolina. It was built in 1968, so it is 57 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 27,000 vehicles a day, roughly 23% of them trucks, projected to reach 54,000 by 2040. The structure is 159 ft (48.4 m) long and 42 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 | 7 Good | Some minor problems. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I77 Sbl over Southern R.R.(abandoned) built?
It was built in 1968, making it 57 years old in 2025.
What condition is I77 Sbl over Southern R.R.(abandoned) 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 May 2024.
How much traffic does I77 Sbl over Southern R.R.(abandoned) carry?
About 27,000 vehicles per day (2020 count), of which roughly 23% are trucks.
How long is I77 Sbl over Southern R.R.(abandoned)?
The structure is 159 ft (48.4 m) long with a longest span of 51 ft (15.5 m) and a deck 42 ft wide.
Who owns I77 Sbl over Southern R.R.(abandoned)?
It is owned by the State Highway Agency.