US421 Nbl over US21
GoodYadkin County, North Carolina · .7 MI.N.JCT.SR1137 · Structure no. 000000001970227
- Built
- 2002
- 23 years old
- Condition
- Good
- inspected June 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 136 ft
- 1 main span
- Daily traffic
- 9,000
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
US421 Nbl over US21 is a steel stringer/multi-beam or girder carrying US421 Nbl over US21 in Yadkin County, North Carolina. It was built in 2002, so it is 23 years old, younger than the North Carolina average of 38.7 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 9,000 vehicles a day, roughly 14% of them trucks, projected to reach 18,000 by 2040. The structure is 136 ft (41.4 m) long and 40 ft wide.
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US421 Nbl over US21 built?
It was built in 2002, making it 23 years old in 2025.
What condition is US421 Nbl over US21 in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in June 2023.
How much traffic does US421 Nbl over US21 carry?
About 9,000 vehicles per day (2021 count), of which roughly 14% are trucks.
How long is US421 Nbl over US21?
The structure is 136 ft (41.4 m) long with a longest span of 133 ft (40.5 m) and a deck 40 ft wide.
Who owns US421 Nbl over US21?
It is owned by the State Highway Agency.