I40 US421 over NC68
FairGuilford County, North Carolina · 0.9 Mi. W. Jct. SR1556 · Structure no. 000000000810384
- Built
- 1981
- 44 years old, rebuilt 2004
- Condition
- Fair
- inspected November 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 274 ft
- 4 main spans
- Daily traffic
- 120,000
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
I40 US421 over NC68 is a steel stringer/multi-beam or girder carrying I40 US421 over NC68 in Guilford County, North Carolina. It was built in 1981 and reconstructed in 2004, 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 120,000 vehicles a day, roughly 16% of them trucks, projected to reach 240,000 by 2040. The structure is 274 ft (83.5 m) long and 167 ft wide. If it were closed, the detour would be 0.6 mi (1 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 |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I40 US421 over NC68 built?
It was built in 1981, making it 44 years old in 2025. It was reconstructed in 2004.
What condition is I40 US421 over NC68 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 November 2024.
How much traffic does I40 US421 over NC68 carry?
About 120,000 vehicles per day (2022 count), of which roughly 16% are trucks.
How long is I40 US421 over NC68?
The structure is 274 ft (83.5 m) long with a longest span of 97 ft (29.5 m) and a deck 167 ft wide.
Who owns I40 US421 over NC68?
It is owned by the State Highway Agency.