US421 over S.Prong Lewis Fork Creek
FairWilkes County, North Carolina · 100 FT.S.JCT.SR1171 · Structure no. 000000001930047
- Built
- 1981
- 44 years old
- Condition
- Fair
- inspected October 2024
- Type
- Culvert
- Concrete Continuous
- Length
- 56 ft
- 3 main spans
- Daily traffic
- 9,900
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
US421 over S.Prong Lewis Fork Creek is a concrete continuous culvert carrying US421 over S.Prong Lewis Fork Creek in Wilkes County, North Carolina. It was built in 1981, so it is 44 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 9,900 vehicles a day, roughly 14% of them trucks, projected to reach 19,800 by 2040. The structure is 56 ft (17 m) long. If it were closed, the detour would be 19.9 mi (32 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 | 7 Good | Some minor problems. |
| Culvert | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US421 over S.Prong Lewis Fork Creek built?
It was built in 1981, making it 44 years old in 2025.
What condition is US421 over S.Prong Lewis Fork Creek 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 October 2024.
How much traffic does US421 over S.Prong Lewis Fork Creek carry?
About 9,900 vehicles per day (2022 count), of which roughly 14% are trucks.
How long is US421 over S.Prong Lewis Fork Creek?
The structure is 56 ft (17 m) long with a longest span of 15 ft (4.5 m).
Who owns US421 over S.Prong Lewis Fork Creek?
It is owned by the State Highway Agency.