I-40 over Swannanoa River
GoodBuncombe County, North Carolina · .3 MI.W.JCT.NC9 · Structure no. 000000000210491
- Built
- 1973
- 52 years old
- Condition
- Good
- inspected November 2021
- Type
- Culvert
- Concrete Continuous
- Length
- 64 ft
- 4 main spans
- Daily traffic
- 36,000
- 2019 count
- Owner
- State
- State Highway Agency
About this bridge
I-40 over Swannanoa River is a concrete continuous culvert carrying I-40 over Swannanoa River in Buncombe County, North Carolina. It was built in 1973, so it is 52 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 36,000 vehicles a day, roughly 16% of them trucks, projected to reach 72,000 by 2040. The structure is 64 ft (19.5 m) long. If it were closed, the detour would be 0.6 mi (1 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Channel and channel protection | 7 Good | Some minor problems. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I-40 over Swannanoa River built?
It was built in 1973, making it 52 years old in 2025.
What condition is I-40 over Swannanoa River in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in November 2021.
How much traffic does I-40 over Swannanoa River carry?
About 36,000 vehicles per day (2019 count), of which roughly 16% are trucks.
How long is I-40 over Swannanoa River?
The structure is 64 ft (19.5 m) long with a longest span of 13 ft (3.9 m).
Who owns I-40 over Swannanoa River?
It is owned by the State Highway Agency.