CR 121 over Little Dunn Creek
FairNassau County, Florida · 3 Miles North of CR 115 · Structure no. 740051
- Built
- 1949
- 76 years old
- Condition
- Fair
- inspected June 2024
- Type
- Culvert
- Concrete
- Length
- 35 ft
- 3 main spans
- Daily traffic
- 2,500
- 2024 count
- Owner
- County
- County Highway Agency
About this bridge
CR 121 over Little Dunn Creek is a concrete culvert carrying CR 121 over Little Dunn Creek in Nassau County, Florida. It was built in 1949, so it is 76 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 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 2,500 vehicles a day, roughly 5% of them trucks, projected to reach 4,338 by 2046. The structure is 35 ft (10.6 m) long. 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 |
|---|---|---|
| Channel and channel protection | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Culvert | 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 CR 121 over Little Dunn Creek built?
It was built in 1949, making it 76 years old in 2025.
What condition is CR 121 over Little Dunn 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 June 2024.
How much traffic does CR 121 over Little Dunn Creek carry?
About 2,500 vehicles per day (2024 count), of which roughly 5% are trucks.
How long is CR 121 over Little Dunn Creek?
The structure is 35 ft (10.6 m) long with a longest span of 12 ft (3.6 m).
Who owns CR 121 over Little Dunn Creek?
It is owned by the County Highway Agency.