S.H. 18 over Arkansas River
GoodPawnee County, Oklahoma · Pawnee / Osage Co. Line · Structure no. 300960000000000
- Built
- 2015
- 10 years old
- Condition
- Good
- inspected September 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 1,435 ft
- 5 main spans
- Daily traffic
- 1,400
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
S.H. 18 over Arkansas River is a steel stringer/multi-beam or girder carrying S.H. 18 over Arkansas River in Pawnee County, Oklahoma. It was built in 2015, so it is 10 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 1,400 vehicles a day, roughly 16% of them trucks, projected to reach 2,240 by 2042. The structure is 1,435 ft (437.4 m) long and 42 ft wide. If it were closed, the detour would be 39.8 mi (64 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 S.H. 18 over Arkansas River built?
It was built in 2015, making it 10 years old in 2025.
What condition is S.H. 18 over Arkansas River 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 S.H. 18 over Arkansas River carry?
About 1,400 vehicles per day (2022 count), of which roughly 16% are trucks.
How long is S.H. 18 over Arkansas River?
The structure is 1,435 ft (437.4 m) long with a longest span of 205 ft (62.5 m) and a deck 42 ft wide.
Who owns S.H. 18 over Arkansas River?
It is owned by the State Highway Agency.