N4530 over Horse Creek
PoorPosted for loadOttawa County, Oklahoma · 2.0E.&.5S. of Afton · Structure no. 072380000000000
- Built
- 1939
- 86 years old, rebuilt 2009
- Condition
- Poor
- inspected September 2023
- Type
- Slab
- Concrete
- Length
- 66 ft
- 3 main spans
- Daily traffic
- 200
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
N4530 over Horse Creek is a concrete slab carrying N4530 over Horse Creek in Ottawa County, Oklahoma. It was built in 1939 and reconstructed in 2009, so it is 86 years old, older than the Oklahoma average of 47.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.
It carries about 200 vehicles a day, roughly 10% of them trucks, projected to reach 320 by 2042. The structure is 66 ft (20.1 m) long and 28 ft wide. If it were closed, the detour would be 3.7 mi (6 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Channel and channel protection | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was N4530 over Horse Creek built?
It was built in 1939, making it 86 years old in 2025. It was reconstructed in 2009.
What condition is N4530 over Horse Creek in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in September 2023.
How much traffic does N4530 over Horse Creek carry?
About 200 vehicles per day (2022 count), of which roughly 10% are trucks.
How long is N4530 over Horse Creek?
The structure is 66 ft (20.1 m) long with a longest span of 20 ft (6.1 m) and a deck 28 ft wide.
Who owns N4530 over Horse Creek?
It is owned by the County Highway Agency.