I73N US421N over I85 Bus
GoodGuilford County, North Carolina · 0.8 Mi. N. Jct. SR1398 · Structure no. 000000000810878
- Built
- 2008
- 17 years old
- Condition
- Good
- inspected January 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 315 ft
- 3 main spans
- Daily traffic
- 27,250
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
I73N US421N over I85 Bus is a steel continuous stringer/multi-beam or girder carrying I73N US421N over I85 Bus in Guilford County, North Carolina. It was built in 2008, so it is 17 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 27,250 vehicles a day, roughly 16% of them trucks, projected to reach 54,500 by 2040. The structure is 315 ft (96 m) long and 62 ft wide. If it were closed, the detour would be 0.6 mi (1 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 |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I73N US421N over I85 Bus built?
It was built in 2008, making it 17 years old in 2025.
What condition is I73N US421N over I85 Bus 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 January 2024.
How much traffic does I73N US421N over I85 Bus carry?
About 27,250 vehicles per day (2020 count), of which roughly 16% are trucks.
How long is I73N US421N over I85 Bus?
The structure is 315 ft (96 m) long with a longest span of 116 ft (35.3 m) and a deck 62 ft wide.
Who owns I73N US421N over I85 Bus?
It is owned by the State Highway Agency.