N3550 over Gray Horse Creek
FairOsage County, Oklahoma · 6 Mi. SE of Fairfax · Structure no. 223480000000000
- Built
- 1989
- 36 years old
- Condition
- Fair
- inspected March 2024
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 136 ft
- 3 main spans
- Daily traffic
- 258
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
N3550 over Gray Horse Creek is a prestressed concrete tee beam carrying N3550 over Gray Horse Creek in Osage County, Oklahoma. It was built in 1989, so it is 36 years old, younger than the Oklahoma average of 47.8 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 258 vehicles a day, roughly 10% of them trucks, projected to reach 413 by 2042. The structure is 136 ft (41.5 m) long and 28 ft wide. If it were closed, the detour would be 9.9 mi (16 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was N3550 over Gray Horse Creek built?
It was built in 1989, making it 36 years old in 2025.
What condition is N3550 over Gray Horse 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 March 2024.
How much traffic does N3550 over Gray Horse Creek carry?
About 258 vehicles per day (2022 count), of which roughly 10% are trucks.
How long is N3550 over Gray Horse Creek?
The structure is 136 ft (41.5 m) long with a longest span of 55 ft (16.8 m) and a deck 28 ft wide.
Who owns N3550 over Gray Horse Creek?
It is owned by the County Highway Agency.