CR 231 over South Prong Swamp
FairBaker County, Florida · 5.2 MI South of SR 90 · Structure no. 270023
- Built
- 1946
- 79 years old, rebuilt 2004
- Condition
- Fair
- inspected August 2023
- Type
- Culvert
- Concrete
- Length
- 25 ft
- 3 main spans
- Daily traffic
- 250
- 2023 count
- Owner
- County
- County Highway Agency
About this bridge
CR 231 over South Prong Swamp is a concrete culvert carrying CR 231 over South Prong Swamp in Baker County, Florida. It was built in 1946 and reconstructed in 2004, so it is 79 years old, older than the Florida average of 41.3 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 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 250 vehicles a day, roughly 10% of them trucks, projected to reach 454 by 2042. The structure is 25 ft (7.7 m) long. If it were closed, the detour would be 15.5 mi (25 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 |
|---|---|---|
| Channel and channel protection | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Culvert | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was CR 231 over South Prong Swamp built?
It was built in 1946, making it 79 years old in 2025. It was reconstructed in 2004.
What condition is CR 231 over South Prong Swamp 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 2023.
How much traffic does CR 231 over South Prong Swamp carry?
About 250 vehicles per day (2023 count), of which roughly 10% are trucks.
How long is CR 231 over South Prong Swamp?
The structure is 25 ft (7.7 m) long with a longest span of 9 ft (2.6 m).
Who owns CR 231 over South Prong Swamp?
It is owned by the County Highway Agency.