Route 646 over Guess Fork
FairBuchanan County, Virginia · 0.0M FR 647 & 2.8M to 643 · Structure no. 000000000003925
- Built
- 1982
- 43 years old
- Condition
- Fair
- inspected May 2024
- Type
- Slab
- Concrete
- Length
- 33 ft
- 1 main span
- Daily traffic
- 753
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
Route 646 over Guess Fork is a concrete slab carrying Route 646 over Guess Fork in Buchanan County, Virginia. It was built in 1982, so it is 43 years old, younger 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 753 vehicles a day, roughly 1% of them trucks, projected to reach 840 by 2042. The structure is 33 ft (10.1 m) long and 28 ft wide. If it were closed, the detour would be 100 mi (161 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Route 646 over Guess Fork built?
It was built in 1982, making it 43 years old in 2025.
What condition is Route 646 over Guess Fork 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 Route 646 over Guess Fork carry?
About 753 vehicles per day (2022 count), of which roughly 1% are trucks.
How long is Route 646 over Guess Fork?
The structure is 33 ft (10.1 m) long with a longest span of 31 ft (9.4 m) and a deck 28 ft wide.
Who owns Route 646 over Guess Fork?
It is owned by the State Highway Agency.