S Harbor Island Bl over Garrison Channel
GoodHillsborough County, Florida · 0.2MI S of Channelside DR · Structure no. 105629
- Built
- 1983
- 42 years old
- Condition
- Good
- inspected February 2025
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 424 ft
- 5 main spans
- Daily traffic
- 11,000
- 2023 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
S Harbor Island Bl over Garrison Channel is a prestressed concrete stringer/multi-beam or girder carrying S Harbor Island Bl over Garrison Channel in Hillsborough County, Florida. It was built in 1983, so it is 42 years old, older 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 11,000 vehicles a day, roughly 9% of them trucks, projected to reach 19,085 by 2042. The structure is 424 ft (129.2 m) long and 58 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 | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 9 Excellent | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was S Harbor Island Bl over Garrison Channel built?
It was built in 1983, making it 42 years old in 2025.
What condition is S Harbor Island Bl over Garrison Channel 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 February 2025.
How much traffic does S Harbor Island Bl over Garrison Channel carry?
About 11,000 vehicles per day (2023 count), of which roughly 9% are trucks.
How long is S Harbor Island Bl over Garrison Channel?
The structure is 424 ft (129.2 m) long with a longest span of 94 ft (28.7 m) and a deck 58 ft wide.
Who owns S Harbor Island Bl over Garrison Channel?
It is owned by the City or Municipal Highway Agency.