IRR N4540 over Little Horse Creek
PoorPosted for loadOttawa County, Oklahoma · .1 N. & 3.0 E. of Afton · Structure no. 072220000000000
- Built
- 1939
- 86 years old
- Condition
- Poor
- inspected September 2023
- Type
- Slab
- Concrete
- Length
- 54 ft
- 3 main spans
- Daily traffic
- 50
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
IRR N4540 over Little Horse Creek is a concrete slab carrying IRR N4540 over Little Horse Creek in Ottawa County, Oklahoma. It was built in 1939, 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 50 vehicles a day, roughly 10% of them trucks, projected to reach 80 by 2042. The structure is 54 ft (16.5 m) long and 20 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 | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Superstructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was IRR N4540 over Little Horse Creek built?
It was built in 1939, making it 86 years old in 2025.
What condition is IRR N4540 over Little 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 IRR N4540 over Little Horse Creek carry?
About 50 vehicles per day (2022 count), of which roughly 10% are trucks.
How long is IRR N4540 over Little Horse Creek?
The structure is 54 ft (16.5 m) long with a longest span of 16 ft (4.9 m) and a deck 20 ft wide.
Who owns IRR N4540 over Little Horse Creek?
It is owned by the County Highway Agency.