US-301 over I-4 (SR-400)
GoodHillsborough County, Florida · 0.9MI N of SR-574 · Structure no. 100592
- Built
- 1999
- 26 years old
- Condition
- Good
- inspected March 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 379 ft
- 4 main spans
- Daily traffic
- 40,500
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US-301 over I-4 (SR-400) is a prestressed concrete stringer/multi-beam or girder carrying US-301 over I-4 (SR-400) in Hillsborough County, Florida. It was built in 1999, so it is 26 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 40,500 vehicles a day, roughly 11% of them trucks, projected to reach 50,625 by 2042. The structure is 379 ft (115.6 m) long and 117 ft wide. If it were closed, the detour would be 1.9 mi (3 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 | 8 Very Good | No problems noted. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US-301 over I-4 (SR-400) built?
It was built in 1999, making it 26 years old in 2025.
What condition is US-301 over I-4 (SR-400) 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 over I-4 (SR-400) carry?
About 40,500 vehicles per day (2023 count), of which roughly 11% are trucks.
How long is US-301 over I-4 (SR-400)?
The structure is 379 ft (115.6 m) long with a longest span of 109 ft (33.1 m) and a deck 117 ft wide.
Who owns US-301 over I-4 (SR-400)?
It is owned by the State Highway Agency.