US421 over Marsh Swamp
GoodSampson County, North Carolina · 0.7 Mi.S. of JCT SR1703 · Structure no. 000000001630420
- Built
- 1962
- 63 years old
- Condition
- Good
- inspected September 2024
- Type
- Culvert
- Concrete Continuous
- Length
- 25 ft
- 3 main spans
- Daily traffic
- 4,400
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
US421 over Marsh Swamp is a concrete continuous culvert carrying US421 over Marsh Swamp in Sampson 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 4,400 vehicles a day, roughly 8% of them trucks, projected to reach 8,800 by 2040. The structure is 25 ft (7.6 m) long.
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 Marsh Swamp built?
It was built in 1962, making it 63 years old in 2025.
What condition is US421 over Marsh 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 September 2024.
How much traffic does US421 over Marsh Swamp carry?
About 4,400 vehicles per day (2022 count), of which roughly 8% are trucks.
How long is US421 over Marsh Swamp?
The structure is 25 ft (7.6 m) long with a longest span of 8 ft (2.4 m).
Who owns US421 over Marsh Swamp?
It is owned by the State Highway Agency.