I-75 SB over Big Slough Canal
FairSarasota County, Florida · 0.3MI N of Sumter Blvd · Structure no. 170131
- Built
- 1981
- 44 years old, rebuilt 2003
- Condition
- Fair
- inspected March 2025
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 540 ft
- 9 main spans
- Daily traffic
- 36,000
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
I-75 SB over Big Slough Canal is a prestressed concrete stringer/multi-beam or girder carrying I-75 SB over Big Slough Canal in Sarasota County, Florida. It was built in 1981 and reconstructed in 2003, so it is 44 years old, older 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 36,000 vehicles a day, roughly 13% of them trucks, projected to reach 45,000 by 2042. The structure is 540 ft (164.6 m) long and 59 ft wide. If it were closed, the detour would be 0.6 mi (1 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 |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I-75 SB over Big Slough Canal built?
It was built in 1981, making it 44 years old in 2025. It was reconstructed in 2003.
What condition is I-75 SB over Big Slough Canal 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 2025.
How much traffic does I-75 SB over Big Slough Canal carry?
About 36,000 vehicles per day (2023 count), of which roughly 13% are trucks.
How long is I-75 SB over Big Slough Canal?
The structure is 540 ft (164.6 m) long with a longest span of 60 ft (18.3 m) and a deck 59 ft wide.
Who owns I-75 SB over Big Slough Canal?
It is owned by the State Highway Agency.