Home › Tennessee › Johnson County › Nfa A409 (sa 4624) over Roan Creek

Nfa A409 (sa 4624) over Roan Creek

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

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

Nfa A409 (sa 4624) over Roan Creek in Johnson County, Tennessee, is rated in poor condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 0 (failed condition, out of service) on the 0-9 scale.
It was built in 1975, making it 50 years old at the 2025 inventory.
It carries about 160 vehicles a day (traffic count year 2020).
Its listed owner is the county highway agency.
It is one of 5 of the 109 inventoried bridges in Johnson County rated poor (4.6%); 5 (4.6%) 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

Component	Rating (2025)	FHWA scale meaning
Deck	0	Failed condition, out of service
Superstructure	0	Failed condition, out of service
Substructure	0	Failed condition, out of service


Structure	Steel stringer or multi-beam girder
Length	about 78 ft
Location	Lt Dry Run Rd-s Off SR167
NBI structure number	460A4090001
Condition class	Poor

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

Bridge	Built	Vehicles/day	Condition
Fap 34 over Furnace Creek	1954	11,763	Good
Fap 34 over Goose Creek	2005	8,381	Good
Fap 67 over Goose Creek	2011	5,964	Good
Fap 34 over Forge Creek	1954	5,818	Good
Fap 34 over Roan Creek	1954	5,818	Good
Nfa A603 over Goose Creek	1999	5,660	Good