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I75 Nbl over Nfa A486

McMinn County, Tennessee · rated Fair in the 2025 National Bridge Inventory

United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled August 20, 2026

I75 Nbl over Nfa A486 in McMinn County, Tennessee, is rated in fair condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the superstructure, rated 6 (satisfactory condition) on the 0-9 scale.
It was built in 1971, making it 54 years old at the 2025 inventory.
It carries about 47,306 vehicles a day (traffic count year 2021).
Its listed owner is the state highway agency.
It is one of 133 of the 219 inventoried bridges in McMinn County rated fair (60.7%); 6 (2.7%) are rated poor.
A fair rating means the lowest-rated major component scores 5 or 6 on FHWA's 0-9 scale: some deterioration or minor section loss, but the structure is sound. It is the middle class, not a warning.

Component ratings


Structure	Prestressed concrete single box beam
Length	about 89 ft
Location	3.2 Mi. From Bradley Co.
NBI structure number	54I00750005
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
I75 Nbl over Mouse Creek	1971	47,306	Good
I75 Sbl over Mouse Creek	1971	47,306	Fair
I75 Sbl over Nfa A486	1971	47,306	Fair
I75 Nbl over Nfa 2334	1971	47,306	Fair
I75 over Nfa 2334	1971	47,306	Fair
I75 Nbl over SR 39	1972	47,306	Fair