IRR 1820C over Big Cabin Creek
FairPosted for loadCraig County, Oklahoma · 1.5NW of Vinita · Structure no. 109510000000000
- Built
- 1948
- 77 years old
- Condition
- Fair
- inspected August 2024
- Type
- Stringer/Multi-beam or Girder
- Concrete
- Length
- 200 ft
- 4 main spans
- Daily traffic
- 250
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
IRR 1820C over Big Cabin Creek is a concrete stringer/multi-beam or girder carrying IRR 1820C over Big Cabin Creek in Craig County, Oklahoma. It was built in 1948, so it is 77 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. Its operating status is: posted for load restriction.
It carries about 250 vehicles a day, roughly 15% of them trucks, projected to reach 400 by 2042. The structure is 200 ft (61 m) long and 25 ft wide. If it were closed, the detour would be 9.9 mi (16 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 | 7 Good | Some minor problems. |
| 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 IRR 1820C over Big Cabin Creek built?
It was built in 1948, making it 77 years old in 2025.
What condition is IRR 1820C over Big Cabin 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 August 2024.
How much traffic does IRR 1820C over Big Cabin Creek carry?
About 250 vehicles per day (2022 count), of which roughly 15% are trucks.
How long is IRR 1820C over Big Cabin Creek?
The structure is 200 ft (61 m) long with a longest span of 47 ft (14.3 m) and a deck 25 ft wide.
Who owns IRR 1820C over Big Cabin Creek?
It is owned by the County Highway Agency.