N3070 over Cottonwood Creek
FairLogan County, Oklahoma · 2.4W .8S of Seward · Structure no. 245210000000000
- Built
- 1997
- 28 years old
- Condition
- Fair
- inspected July 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 124 ft
- 1 main span
- Daily traffic
- 60
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
N3070 over Cottonwood Creek is a prestressed concrete stringer/multi-beam or girder carrying N3070 over Cottonwood Creek in Logan County, Oklahoma. It was built in 1997, so it is 28 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 60 vehicles a day, roughly 10% of them trucks, projected to reach 96 by 2042. The structure is 124 ft (37.9 m) long and 29 ft wide. If it were closed, the detour would be 1.9 mi (3 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was N3070 over Cottonwood Creek built?
It was built in 1997, making it 28 years old in 2025.
What condition is N3070 over Cottonwood 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 July 2024.
How much traffic does N3070 over Cottonwood Creek carry?
About 60 vehicles per day (2022 count), of which roughly 10% are trucks.
How long is N3070 over Cottonwood Creek?
The structure is 124 ft (37.9 m) long with a longest span of 121 ft (37 m) and a deck 29 ft wide.
Who owns N3070 over Cottonwood Creek?
It is owned by the County Highway Agency.