9th ST South over I-175
GoodPinellas County, Florida · 0.5 MI West of 4th St. · Structure no. 150171
- Built
- 1978
- 47 years old
- Condition
- Good
- inspected November 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 166 ft
- 2 main spans
- Daily traffic
- 9,800
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
9th ST South over I-175 is a prestressed concrete stringer/multi-beam or girder carrying 9th ST South over I-175 in Pinellas County, Florida. It was built in 1978, so it is 47 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 9,800 vehicles a day, roughly 6% of them trucks, projected to reach 17,003 by 2044. The structure is 166 ft (50.7 m) long and 72 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 9th ST South over I-175 built?
It was built in 1978, making it 47 years old in 2025.
What condition is 9th ST South over I-175 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 November 2024.
How much traffic does 9th ST South over I-175 carry?
About 9,800 vehicles per day (2024 count), of which roughly 6% are trucks.
How long is 9th ST South over I-175?
The structure is 166 ft (50.7 m) long with a longest span of 87 ft (26.4 m) and a deck 72 ft wide.
Who owns 9th ST South over I-175?
It is owned by the State Highway Agency.