SR91 SB Tpk 180.16 over Outfall Slough
Indian River County, Florida · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- SR91 SB Tpk 180.16 over Outfall Slough in Indian River County, Florida, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 7 (good condition) on the 0-9 scale.
- It was built in 1963 and reconstructed in 1990, making it 62 years old at the 2025 inventory.
- It carries about 18,350 vehicles a day (traffic count year 2024).
- It is one of 92 of the 121 inventoried bridges in Indian River County rated good (76.0%); 2 (1.7%) are rated poor.
- A good rating means every major component - deck, superstructure, substructure, or culvert - is rated 7 or higher on FHWA's 0-9 scale: no more than minor problems.
View this bridge on a map → (27.55929, -80.76291)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 7 | Good condition |
| Superstructure | 7 | Good condition |
| Substructure | 7 | Good condition |
Bridge details
| Structure | Prestressed concrete slab |
| Length | about 82 ft |
| Location | 13 Mi South of SR 60 |
| NBI structure number | 880059 |
| Condition class | Good |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Florida department of transportation.
Busiest bridges in Indian River County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| SR 9 (I-95) over 4th St. and Canal D | 2014 | 56,000 | Good |
| SR 9 (I-95) over 90th Ave. | 2014 | 56,000 | Good |
| SR 9 (I-95) over SR 60 | 2014 | 56,000 | Good |
| SR 9 (I-95) over CR 512 (Fellsmere Rd.) | 2016 | 54,314 | Good |
| I-95 over Relief Canal | 1968 | 50,500 | Good |
| SR-60 over Lateral Canal A | 1995 | 28,500 | Fair |
All bridges nearby: Indian River County, FL bridge conditions · every bridge in Indian River County · Florida bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.