I-4 EB over SR-585 21st & 22nd ST
GoodHillsborough County, Florida · 1 MI E of I-275 · Structure no. 100659
- Built
- 2006
- 19 years old
- Condition
- Good
- inspected June 2024
- Type
- Box Beam or Girders - Single or Spread
- Prestressed Concrete
- Length
- 358 ft
- 3 main spans
- Daily traffic
- 86,000
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
I-4 EB over SR-585 21st & 22nd ST is a prestressed concrete box beam or girders - single or spread carrying I-4 EB over SR-585 21st & 22nd ST in Hillsborough County, Florida. It was built in 2006, so it is 19 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 86,000 vehicles a day, roughly 11% of them trucks, projected to reach 149,210 by 2044. The structure is 358 ft (109.1 m) long and 76 ft wide.
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. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I-4 EB over SR-585 21st & 22nd ST built?
It was built in 2006, making it 19 years old in 2025.
What condition is I-4 EB over SR-585 21st & 22nd ST 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 I-4 EB over SR-585 21st & 22nd ST carry?
About 86,000 vehicles per day (2024 count), of which roughly 11% are trucks.
How long is I-4 EB over SR-585 21st & 22nd ST?
The structure is 358 ft (109.1 m) long with a longest span of 119 ft (36.4 m) and a deck 76 ft wide.
Who owns I-4 EB over SR-585 21st & 22nd ST?
It is owned by the State Highway Agency.