N4230 over Shady Grove Creek
PoorPosted for loadMcIntosh County, Oklahoma · .2N;2E of Checotah · Structure no. 201630000000000
- Built
- 1982
- 43 years old
- Condition
- Poor
- inspected September 2023
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 53 ft
- 1 main span
- Daily traffic
- 100
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
N4230 over Shady Grove Creek is a prestressed concrete tee beam carrying N4230 over Shady Grove 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.
It carries about 100 vehicles a day, roughly 10% of them trucks, projected to reach 160 by 2042. The structure is 53 ft (16.2 m) long and 28 ft wide. If it were closed, the detour would be 3.1 mi (5 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 4 Poor | Advanced section loss, deterioration, 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 N4230 over Shady Grove Creek built?
It was built in 1982, making it 43 years old in 2025.
What condition is N4230 over Shady Grove Creek in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in September 2023.
How much traffic does N4230 over Shady Grove Creek carry?
About 100 vehicles per day (2022 count), of which roughly 10% are trucks.
How long is N4230 over Shady Grove Creek?
The structure is 53 ft (16.2 m) long with a longest span of 50 ft (15.2 m) and a deck 28 ft wide.
Who owns N4230 over Shady Grove Creek?
It is owned by the County Highway Agency.