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Nfa A129 over Sawmill Branch

Hardin County, Tennessee · rated Poor in the 2025 National Bridge Inventory

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

Nfa A129 over Sawmill Branch in Hardin County, Tennessee, is rated in poor condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the substructure, rated 2 (critical condition) on the 0-9 scale.
It was built in 1975, making it 50 years old at the 2025 inventory.
It carries about 90 vehicles a day (traffic count year 2020).
Its listed owner is the county highway agency.
It is one of 4 of the 190 inventoried bridges in Hardin County rated poor (2.1%); 4 (2.1%) are rated poor.
A poor rating means at least one major component - deck, superstructure, or substructure - is rated 4 or lower on FHWA's 0-9 scale. It does not by itself mean the bridge is unsafe; bridges judged unsafe are closed or load-restricted by their owners.

Component ratings


Structure	Steel stringer or multi-beam girder
Length	about 20 ft
Location	Nelson Rd Near Bucktown
NBI structure number	360A1290001
Condition class	Poor

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

Bridge	Built	Vehicles/day	Condition
Fap 15 over Tenn River Overflow	1988	13,265	Fair
Fap 15 over Tenn River Overflow	1988	13,265	Fair
Fap 15 over Tennessee River	1980	13,265	Fair
Fap 15 over Horse Creek	2010	12,884	Good
Fap 15 over Overflow	2010	12,884	Good
Fap 15 over Overflow	2010	12,884	Good