SR3418 over US421
GoodGuilford County, North Carolina · 0.2 Mi. W. of Jct. SR3549 · Structure no. 000000000811121
- Built
- 2016
- 9 years old
- Condition
- Good
- inspected September 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete Continuous
- Length
- 316 ft
- 3 main spans
- Daily traffic
- 3,700
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
SR3418 over US421 is a prestressed concrete continuous stringer/multi-beam or girder carrying SR3418 over US421 in Guilford County, North Carolina. It was built in 2016, so it is 9 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 3,700 vehicles a day, roughly 6% of them trucks, projected to reach 7,400 by 2040. The structure is 316 ft (96.3 m) long and 56 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 SR3418 over US421 built?
It was built in 2016, making it 9 years old in 2025.
What condition is SR3418 over US421 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 SR3418 over US421 carry?
About 3,700 vehicles per day (2022 count), of which roughly 6% are trucks.
How long is SR3418 over US421?
The structure is 316 ft (96.3 m) long with a longest span of 105 ft (32 m) and a deck 56 ft wide.
Who owns SR3418 over US421?
It is owned by the State Highway Agency.