S.H. 66 over N. Canadian River
FairOklahoma County, Oklahoma · 0.3MI E Canadian C/L · Structure no. 142080000000000
- Built
- 1958
- 67 years old, rebuilt 1991
- Condition
- Fair
- inspected June 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 803 ft
- 8 main spans
- Daily traffic
- 17,300
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
S.H. 66 over N. Canadian River is a steel continuous stringer/multi-beam or girder carrying S.H. 66 over N. Canadian River in Oklahoma County, Oklahoma. It was built in 1958 and reconstructed in 1991, so it is 67 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 17,300 vehicles a day, roughly 7% of them trucks, projected to reach 27,680 by 2042. The structure is 803 ft (244.8 m) long and 63 ft wide. If it were closed, the detour would be 6.2 mi (10 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| 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. 66 over N. Canadian River built?
It was built in 1958, making it 67 years old in 2025. It was reconstructed in 1991.
What condition is S.H. 66 over N. Canadian 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 June 2024.
How much traffic does S.H. 66 over N. Canadian River carry?
About 17,300 vehicles per day (2022 count), of which roughly 7% are trucks.
How long is S.H. 66 over N. Canadian River?
The structure is 803 ft (244.8 m) long with a longest span of 100 ft (30.5 m) and a deck 63 ft wide.
Who owns S.H. 66 over N. Canadian River?
It is owned by the State Highway Agency.