S.H. 8 over Salt Fork Arkansas River
FairAlfalfa County, Oklahoma · 1.6 MI.N.JCT.US64 · Structure no. 139350000000000
- Built
- 1957
- 68 years old, rebuilt 2010
- Condition
- Fair
- inspected May 2023
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 903 ft
- 8 main spans
- Daily traffic
- 1,800
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
S.H. 8 over Salt Fork Arkansas River is a steel continuous stringer/multi-beam or girder carrying S.H. 8 over Salt Fork Arkansas River in Alfalfa County, Oklahoma. It was built in 1957 and reconstructed in 2010, so it is 68 years old, older 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 5 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 1,800 vehicles a day, roughly 15% of them trucks, projected to reach 2,880 by 2042. The structure is 903 ft (275.2 m) long and 32 ft wide. If it were closed, the detour would be 39.8 mi (64 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was S.H. 8 over Salt Fork Arkansas River built?
It was built in 1957, making it 68 years old in 2025. It was reconstructed in 2010.
What condition is S.H. 8 over Salt Fork Arkansas River 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 2023.
How much traffic does S.H. 8 over Salt Fork Arkansas River carry?
About 1,800 vehicles per day (2022 count), of which roughly 15% are trucks.
How long is S.H. 8 over Salt Fork Arkansas River?
The structure is 903 ft (275.2 m) long with a longest span of 100 ft (30.5 m) and a deck 32 ft wide.
Who owns S.H. 8 over Salt Fork Arkansas River?
It is owned by the State Highway Agency.