US-301 (SR-43) over Alafia River
GoodHillsborough County, Florida · 0.7MI. N of Gibsonton Dr. · Structure no. 100506
- Built
- 1989
- 36 years old
- Condition
- Good
- inspected March 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 472 ft
- 8 main spans
- Daily traffic
- 46,500
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US-301 (SR-43) over Alafia River is a prestressed concrete stringer/multi-beam or girder carrying US-301 (SR-43) over Alafia River in Hillsborough County, Florida. It was built in 1989, so it is 36 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 46,500 vehicles a day, roughly 7% of them trucks, projected to reach 80,678 by 2042. The structure is 472 ft (143.9 m) long and 110 ft wide. If it were closed, the detour would be 3.7 mi (6 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-301 (SR-43) over Alafia River built?
It was built in 1989, making it 36 years old in 2025.
What condition is US-301 (SR-43) over Alafia River 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 March 2023.
How much traffic does US-301 (SR-43) over Alafia River carry?
About 46,500 vehicles per day (2023 count), of which roughly 7% are trucks.
How long is US-301 (SR-43) over Alafia River?
The structure is 472 ft (143.9 m) long with a longest span of 59 ft (18 m) and a deck 110 ft wide.
Who owns US-301 (SR-43) over Alafia River?
It is owned by the State Highway Agency.