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SR91 NB 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 August 20, 2026

SR91 NB Tpk 180.16 over Outfall Slough in Indian River County, Florida, is rated in good condition in the 2025 National Bridge Inventory (as of August 20, 2026).
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.

Component ratings

Source: FHWA National Bridge Inventory, 2025 data as reported by the Florida department of transportation.

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