N3500 over Rock Creek
GoodJohnston County, Oklahoma · 1.6 N & .5 E of Troy · Structure no. 249180000000000
- Built
- 1997
- 28 years old
- Condition
- Good
- inspected May 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 123 ft
- 3 main spans
- Daily traffic
- 50
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
N3500 over Rock Creek is a prestressed concrete stringer/multi-beam or girder carrying N3500 over Rock Creek in Johnston County, Oklahoma. It was built in 1997, so it is 28 years old, younger than the Oklahoma average of 47.8 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 50 vehicles a day, roughly 10% of them trucks, projected to reach 80 by 2042. The structure is 123 ft (37.5 m) long and 29 ft wide. If it were closed, the detour would be 3.1 mi (5 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 | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was N3500 over Rock Creek built?
It was built in 1997, making it 28 years old in 2025.
What condition is N3500 over Rock 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 May 2023.
How much traffic does N3500 over Rock Creek carry?
About 50 vehicles per day (2022 count), of which roughly 10% are trucks.
How long is N3500 over Rock Creek?
The structure is 123 ft (37.5 m) long with a longest span of 50 ft (15.2 m) and a deck 29 ft wide.
Who owns N3500 over Rock Creek?
It is owned by the County Highway Agency.