US421 Byp over Cub Creek
FairWilkes County, North Carolina · 0.4 Mi. S. Jct. NC16&18 · Structure no. 000000001930080
- Built
- 1966
- 59 years old
- Condition
- Fair
- inspected April 2023
- Type
- Culvert
- Concrete Continuous
- Length
- 37 ft
- 3 main spans
- Daily traffic
- 25,000
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
US421 Byp over Cub Creek is a concrete continuous culvert carrying US421 Byp over Cub Creek in Wilkes County, North Carolina. It was built in 1966, so it is 59 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 25,000 vehicles a day, roughly 12% of them trucks, projected to reach 50,000 by 2040. The structure is 37 ft (11.2 m) long. If it were closed, the detour would be 1.9 mi (3 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 Byp over Cub Creek built?
It was built in 1966, making it 59 years old in 2025.
What condition is US421 Byp over Cub 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 April 2023.
How much traffic does US421 Byp over Cub Creek carry?
About 25,000 vehicles per day (2021 count), of which roughly 12% are trucks.
How long is US421 Byp over Cub Creek?
The structure is 37 ft (11.2 m) long with a longest span of 12 ft (3.6 m).
Who owns US421 Byp over Cub Creek?
It is owned by the State Highway Agency.