CR 121 over Mill Creek
GoodNassau County, Florida · 3 MI North of CR 2 · Structure no. 744313
- Built
- 2001
- 24 years old
- Condition
- Good
- inspected June 2024
- Type
- Slab
- Concrete Continuous
- Length
- 164 ft
- 5 main spans
- Daily traffic
- 2,500
- 2024 count
- Owner
- County
- County Highway Agency
About this bridge
CR 121 over Mill Creek is a concrete continuous slab carrying CR 121 over Mill Creek in Nassau County, Florida. It was built in 2001, so it is 24 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 2,500 vehicles a day, roughly 5% of them trucks, projected to reach 4,338 by 2046. The structure is 164 ft (50 m) long and 43 ft wide. If it were closed, the detour would be 18 mi (29 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was CR 121 over Mill Creek built?
It was built in 2001, making it 24 years old in 2025.
What condition is CR 121 over Mill 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 June 2024.
How much traffic does CR 121 over Mill Creek carry?
About 2,500 vehicles per day (2024 count), of which roughly 5% are trucks.
How long is CR 121 over Mill Creek?
The structure is 164 ft (50 m) long with a longest span of 33 ft (10.1 m) and a deck 43 ft wide.
Who owns CR 121 over Mill Creek?
It is owned by the County Highway Agency.