US-1 (SR-15) over Alligator Creek
GoodNassau County, Florida · Callahan N. City Limits · Structure no. 740103
- Built
- 1992
- 33 years old
- Condition
- Good
- inspected April 2023
- Type
- Slab
- Concrete
- Length
- 166 ft
- 7 main spans
- Daily traffic
- 15,200
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
US-1 (SR-15) over Alligator Creek is a concrete slab carrying US-1 (SR-15) over Alligator Creek in Nassau County, Florida. It was built in 1992, so it is 33 years old, younger than the Florida average of 41.3 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 15,200 vehicles a day, roughly 15% of them trucks, projected to reach 26,372 by 2044. The structure is 166 ft (50.6 m) long and 81 ft wide. If it were closed, the detour would be 8.7 mi (14 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US-1 (SR-15) over Alligator Creek built?
It was built in 1992, making it 33 years old in 2025.
What condition is US-1 (SR-15) over Alligator Creek in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in April 2023.
How much traffic does US-1 (SR-15) over Alligator Creek carry?
About 15,200 vehicles per day (2022 count), of which roughly 15% are trucks.
How long is US-1 (SR-15) over Alligator Creek?
The structure is 166 ft (50.6 m) long with a longest span of 25 ft (7.6 m) and a deck 81 ft wide.
Who owns US-1 (SR-15) over Alligator Creek?
It is owned by the State Highway Agency.