IRR N4520 over Horse Creek
GoodOttawa County, Oklahoma · N4520E0220002 · Structure no. 226250000000000
- Built
- 1990
- 35 years old
- Condition
- Good
- inspected September 2023
- Type
- Tee Beam
- Concrete
- Length
- 123 ft
- 3 main spans
- Daily traffic
- 125
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
IRR N4520 over Horse Creek is a concrete tee beam carrying IRR N4520 over Horse Creek in Ottawa County, Oklahoma. It was built in 1990, so it is 35 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 125 vehicles a day, roughly 10% of them trucks, projected to reach 200 by 2042. The structure is 123 ft (37.5 m) long and 26 ft wide. If it were closed, the detour would be 3.7 mi (6 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 | 8 Very Good | No problems noted. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was IRR N4520 over Horse Creek built?
It was built in 1990, making it 35 years old in 2025.
What condition is IRR N4520 over Horse 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 2023.
How much traffic does IRR N4520 over Horse Creek carry?
About 125 vehicles per day (2022 count), of which roughly 10% are trucks.
How long is IRR N4520 over Horse Creek?
The structure is 123 ft (37.5 m) long with a longest span of 38 ft (11.6 m) and a deck 26 ft wide.
Who owns IRR N4520 over Horse Creek?
It is owned by the County Highway Agency.