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Nfa A173 over S. Fk. Harmon Creek

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

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

Nfa A173 over S. Fk. Harmon Creek in Benton 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 5 (fair condition) on the 0-9 scale.
It was built in 1997, making it 28 years old at the 2025 inventory.
It carries about 20 vehicles a day (traffic count year 2020).
Its listed owner is the county highway agency.
It is one of 96 of the 147 inventoried bridges in Benton County rated fair (65.3%); 2 (1.4%) 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 100 ft
Location	2.5 Mi W of Humphreys Co.
NBI structure number	030A1730001
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
I40 over Tennessee River	1992	35,649	Fair
I40 over Branch	1965	34,722	Good
I40 over Branch	1965	34,722	Fair
Fap 69 over Cane Creek	1972	10,748	Good
Fas 391 over Cane Creek	1950	10,072	Good
Fap 69 350896T over CSX Railroad	1972	8,682	Fair