I73 US421N over SR1546
GoodGuilford County, North Carolina · 0.3 Mi. W. Jct. SR1541 · Structure no. 000000000810867
- Built
- 2008
- 17 years old
- Condition
- Good
- inspected February 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete Continuous
- Length
- 178 ft
- 3 main spans
- Daily traffic
- 28,500
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
I73 US421N over SR1546 is a prestressed concrete continuous stringer/multi-beam or girder carrying I73 US421N over SR1546 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 28,500 vehicles a day, roughly 16% of them trucks, projected to reach 57,000 by 2040. The structure is 178 ft (54.2 m) long and 82 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 | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I73 US421N over SR1546 built?
It was built in 2008, making it 17 years old in 2025.
What condition is I73 US421N over SR1546 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 February 2024.
How much traffic does I73 US421N over SR1546 carry?
About 28,500 vehicles per day (2020 count), of which roughly 16% are trucks.
How long is I73 US421N over SR1546?
The structure is 178 ft (54.2 m) long with a longest span of 85 ft (25.9 m) and a deck 82 ft wide.
Who owns I73 US421N over SR1546?
It is owned by the State Highway Agency.