N4120 over North Fork Creek
GoodRogers County, Oklahoma · 0.7 MI S of E0310 · Structure no. 255220000000000
- Built
- 1996
- 29 years old
- Condition
- Good
- inspected June 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 148 ft
- 3 main spans
- Daily traffic
- 115
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
N4120 over North Fork Creek is a prestressed concrete stringer/multi-beam or girder carrying N4120 over North Fork Creek in Rogers County, Oklahoma. It was built in 1996, so it is 29 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 115 vehicles a day, roughly 10% of them trucks, projected to reach 184 by 2042. The structure is 148 ft (45.1 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
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 | 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 N4120 over North Fork Creek built?
It was built in 1996, making it 29 years old in 2025.
What condition is N4120 over North Fork 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 June 2023.
How much traffic does N4120 over North Fork Creek carry?
About 115 vehicles per day (2022 count), of which roughly 10% are trucks.
How long is N4120 over North Fork Creek?
The structure is 148 ft (45.1 m) long with a longest span of 75 ft (22.9 m) and a deck 28 ft wide.
Who owns N4120 over North Fork Creek?
It is owned by the County Highway Agency.