IRR 4630C over Little Mill Creek
FairMcIntosh County, Oklahoma · 2.3S;1E of Vivian · Structure no. 201210000000000
- Built
- 1982
- 43 years old
- Condition
- Fair
- inspected August 2024
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 45 ft
- 1 main span
- Daily traffic
- 150
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
IRR 4630C over Little Mill Creek is a prestressed concrete tee beam carrying IRR 4630C over Little Mill Creek in McIntosh County, Oklahoma. It was built in 1982, so it is 43 years old, younger 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 150 vehicles a day, roughly 15% of them trucks, projected to reach 240 by 2042. The structure is 45 ft (13.7 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
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 | 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 4630C over Little Mill Creek built?
It was built in 1982, making it 43 years old in 2025.
What condition is IRR 4630C over Little Mill 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 4630C over Little Mill Creek carry?
About 150 vehicles per day (2022 count), of which roughly 15% are trucks.
How long is IRR 4630C over Little Mill Creek?
The structure is 45 ft (13.7 m) long with a longest span of 43 ft (13.1 m) and a deck 28 ft wide.
Who owns IRR 4630C over Little Mill Creek?
It is owned by the County Highway Agency.