I-64 over Thorny Branch
FairAlleghany County, Virginia · 1.89 to 661 & 1.03 to 159 · Structure no. 000000000000975
- Built
- 1966
- 59 years old
- Condition
- Fair
- inspected February 2025
- Type
- Culvert
- Concrete
- Length
- 21 ft
- 2 main spans
- Daily traffic
- 9,141
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
I-64 over Thorny Branch is a concrete culvert carrying I-64 over Thorny Branch in Alleghany County, Virginia. It was built in 1966, so it is 59 years old, older than the Virginia average of 50.7 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 9,141 vehicles a day, roughly 1% of them trucks, projected to reach 10,192 by 2045. The structure is 21 ft (6.3 m) long. If it were closed, the detour would be 1.2 mi (2 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 |
|---|---|---|
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
| Culvert | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I-64 over Thorny Branch built?
It was built in 1966, making it 59 years old in 2025.
What condition is I-64 over Thorny Branch 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 February 2025.
How much traffic does I-64 over Thorny Branch carry?
About 9,141 vehicles per day (2022 count), of which roughly 1% are trucks.
How long is I-64 over Thorny Branch?
The structure is 21 ft (6.3 m) long with a longest span of 8 ft (2.4 m).
Who owns I-64 over Thorny Branch?
It is owned by the State Highway Agency.