N4090 over Mormon Creek
FairNowata County, Oklahoma · 2.5N 60; 5W 169 · Structure no. 267780000000000
- Built
- 2002
- 23 years old
- Condition
- Fair
- inspected May 2024
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 55 ft
- 1 main span
- Daily traffic
- 276
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
N4090 over Mormon Creek is a prestressed concrete tee beam carrying N4090 over Mormon Creek in Nowata County, Oklahoma. It was built in 2002, so it is 23 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 276 vehicles a day, roughly 10% of them trucks, projected to reach 442 by 2042. The structure is 55 ft (16.8 m) long and 28 ft wide. If it were closed, the detour would be 8.1 mi (13 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 | 8 Very Good | No problems noted. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was N4090 over Mormon Creek built?
It was built in 2002, making it 23 years old in 2025.
What condition is N4090 over Mormon 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 May 2024.
How much traffic does N4090 over Mormon Creek carry?
About 276 vehicles per day (2022 count), of which roughly 10% are trucks.
How long is N4090 over Mormon Creek?
The structure is 55 ft (16.8 m) long with a longest span of 55 ft (16.8 m) and a deck 28 ft wide.
Who owns N4090 over Mormon Creek?
It is owned by the County Highway Agency.