SR1640 over Prong Stirrup Iron Creek
GoodWake County, North Carolina · 0.2 Mi. S. Jct. SR1641 · Structure no. 000000001830331
- Built
- 1985
- 40 years old
- Condition
- Good
- inspected September 2021
- Type
- Culvert
- Steel
- Length
- 36 ft
- 3 main spans
- Daily traffic
- 600
- 1998 count
- Owner
- State
- State Highway Agency
About this bridge
SR1640 over Prong Stirrup Iron Creek is a steel culvert carrying SR1640 over Prong Stirrup Iron Creek in Wake County, North Carolina. It was built in 1985, so it is 40 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 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 600 vehicles a day, roughly 7% of them trucks, projected to reach 1,200 by 2040. The structure is 36 ft (10.9 m) long. If it were closed, the detour would be 5.6 mi (9 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 |
|---|---|---|
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SR1640 over Prong Stirrup Iron Creek built?
It was built in 1985, making it 40 years old in 2025.
What condition is SR1640 over Prong Stirrup Iron Creek 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 2021.
How much traffic does SR1640 over Prong Stirrup Iron Creek carry?
About 600 vehicles per day (1998 count), of which roughly 7% are trucks.
How long is SR1640 over Prong Stirrup Iron Creek?
The structure is 36 ft (10.9 m) long with a longest span of 10 ft (3 m).
Who owns SR1640 over Prong Stirrup Iron Creek?
It is owned by the State Highway Agency.