US221 over Armstrong Creek
FairMcDowell County, North Carolina · .3 MI.S.JCT.SR1558 · Structure no. 000000001110104
- Built
- 1994
- 31 years old
- Condition
- Fair
- inspected January 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 143 ft
- 2 main spans
- Daily traffic
- 12,500
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
US221 over Armstrong Creek is a prestressed concrete stringer/multi-beam or girder carrying US221 over Armstrong Creek in McDowell County, North Carolina. It was built in 1994, so it is 31 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 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 12,500 vehicles a day, roughly 14% of them trucks, projected to reach 25,000 by 2040. The structure is 143 ft (43.5 m) long and 83 ft wide. If it were closed, the detour would be 2.5 mi (4 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 | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US221 over Armstrong Creek built?
It was built in 1994, making it 31 years old in 2025.
What condition is US221 over Armstrong Creek 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 January 2024.
How much traffic does US221 over Armstrong Creek carry?
About 12,500 vehicles per day (2022 count), of which roughly 14% are trucks.
How long is US221 over Armstrong Creek?
The structure is 143 ft (43.5 m) long with a longest span of 82 ft (24.9 m) and a deck 83 ft wide.
Who owns US221 over Armstrong Creek?
It is owned by the State Highway Agency.