US421 over Br. of Mingo Swamp
GoodHarnett County, North Carolina · 0.5 Mi. S. of SR1794 · Structure no. 000000000850258
- Built
- 1962
- 63 years old
- Condition
- Good
- inspected July 2024
- Type
- Culvert
- Concrete Continuous
- Length
- 25 ft
- 3 main spans
- Daily traffic
- 8,000
- 2019 count
- Owner
- State
- State Highway Agency
About this bridge
US421 over Br. of Mingo Swamp is a concrete continuous culvert carrying US421 over Br. of Mingo Swamp in Harnett County, North Carolina. It was built in 1962, so it is 63 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 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 8,000 vehicles a day, roughly 8% of them trucks, projected to reach 16,000 by 2040. The structure is 25 ft (7.6 m) long. If it were closed, the detour would be 1.9 mi (3 km).
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 |
|---|---|---|
| Channel and channel protection | 7 Good | Some minor problems. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US421 over Br. of Mingo Swamp built?
It was built in 1962, making it 63 years old in 2025.
What condition is US421 over Br. of Mingo Swamp 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 July 2024.
How much traffic does US421 over Br. of Mingo Swamp carry?
About 8,000 vehicles per day (2019 count), of which roughly 8% are trucks.
How long is US421 over Br. of Mingo Swamp?
The structure is 25 ft (7.6 m) long with a longest span of 8 ft (2.4 m).
Who owns US421 over Br. of Mingo Swamp?
It is owned by the State Highway Agency.