SR-21 over Mill Creek
FairClay County, Florida · 0.5 Mi. N. of CR-215 · Structure no. 710062
- Built
- 1988
- 37 years old
- Condition
- Fair
- inspected March 2024
- Type
- Culvert
- Concrete
- Length
- 21 ft
- 2 main spans
- Daily traffic
- 19,699
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
SR-21 over Mill Creek is a concrete culvert carrying SR-21 over Mill Creek in Clay County, Florida. It was built in 1988, so it is 37 years old, younger 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 19,699 vehicles a day, roughly 9% of them trucks, projected to reach 34,178 by 2042. The structure is 21 ft (6.4 m) long. If it were closed, the detour would be 11.2 mi (18 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Culvert | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SR-21 over Mill Creek built?
It was built in 1988, making it 37 years old in 2025.
What condition is SR-21 over Mill 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 March 2024.
How much traffic does SR-21 over Mill Creek carry?
About 19,699 vehicles per day (2023 count), of which roughly 9% are trucks.
How long is SR-21 over Mill Creek?
The structure is 21 ft (6.4 m) long with a longest span of 10 ft (3 m).
Who owns SR-21 over Mill Creek?
It is owned by the State Highway Agency.