SR91 SB Tpk 178.03 over Outfall Slough
GoodIndian River County, Florida · 6.6 MI S of Ft Drum Plz · Structure no. 880058
- Built
- 1963
- 62 years old, rebuilt 1989
- Condition
- Good
- inspected January 2024
- Type
- Slab
- Prestressed Concrete
- Length
- 196 ft
- 5 main spans
- Daily traffic
- 18,350
- 2024 count
- Owner
- Toll Authority
- State Toll Authority
About this bridge
SR91 SB Tpk 178.03 over Outfall Slough is a prestressed concrete slab carrying SR91 SB Tpk 178.03 over Outfall Slough in Indian River County, Florida. It was built in 1963 and reconstructed in 1989, so it is 62 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 18,350 vehicles a day, roughly 11% of them trucks, projected to reach 31,837 by 2044. The structure is 196 ft (59.7 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SR91 SB Tpk 178.03 over Outfall Slough built?
It was built in 1963, making it 62 years old in 2025. It was reconstructed in 1989.
What condition is SR91 SB Tpk 178.03 over Outfall Slough 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 January 2024.
How much traffic does SR91 SB Tpk 178.03 over Outfall Slough carry?
About 18,350 vehicles per day (2024 count), of which roughly 11% are trucks.
How long is SR91 SB Tpk 178.03 over Outfall Slough?
The structure is 196 ft (59.7 m) long with a longest span of 39 ft (12 m) and a deck 43 ft wide.
Who owns SR91 SB Tpk 178.03 over Outfall Slough?
It is owned by the State Toll Authority.