I-75 SB over New Castle Waterway
FairSarasota County, Florida · 3.4MI S of Toledo Blade · Structure no. 170137
- Built
- 1981
- 44 years old, rebuilt 2016
- Condition
- Fair
- inspected March 2025
- Type
- Slab
- Concrete Continuous
- Length
- 131 ft
- 4 main spans
- Daily traffic
- 27,750
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
I-75 SB over New Castle Waterway is a concrete continuous slab carrying I-75 SB over New Castle Waterway in Sarasota County, Florida. It was built in 1981 and reconstructed in 2016, 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 27,750 vehicles a day, roughly 15% of them trucks, projected to reach 34,688 by 2042. The structure is 131 ft (40 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I-75 SB over New Castle Waterway built?
It was built in 1981, making it 44 years old in 2025. It was reconstructed in 2016.
What condition is I-75 SB over New Castle Waterway 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 New Castle Waterway carry?
About 27,750 vehicles per day (2023 count), of which roughly 15% are trucks.
How long is I-75 SB over New Castle Waterway?
The structure is 131 ft (40 m) long with a longest span of 33 ft (10 m) and a deck 59 ft wide.
Who owns I-75 SB over New Castle Waterway?
It is owned by the State Highway Agency.