Porterfield HWY over N Fork Holston River
FairWashington County, Virginia · 0.50-RT.802; 2.15-RT.700 · Structure no. 000000000018861
- Built
- 1964
- 61 years old, rebuilt 2006
- Condition
- Fair
- inspected July 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 505 ft
- 6 main spans
- Daily traffic
- 7,879
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
Porterfield HWY over N Fork Holston River is a steel continuous stringer/multi-beam or girder carrying Porterfield HWY over N Fork Holston River in Washington County, Virginia. It was built in 1964 and reconstructed in 2006, so it is 61 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 7,879 vehicles a day, roughly 1% of them trucks, projected to reach 11,505 by 2042. The structure is 505 ft (153.9 m) long and 35 ft wide. 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 |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Porterfield HWY over N Fork Holston River built?
It was built in 1964, making it 61 years old in 2025. It was reconstructed in 2006.
What condition is Porterfield HWY over N Fork Holston River 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 July 2024.
How much traffic does Porterfield HWY over N Fork Holston River carry?
About 7,879 vehicles per day (2022 count), of which roughly 1% are trucks.
How long is Porterfield HWY over N Fork Holston River?
The structure is 505 ft (153.9 m) long with a longest span of 85 ft (25.9 m) and a deck 35 ft wide.
Who owns Porterfield HWY over N Fork Holston River?
It is owned by the State Highway Agency.