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Nfa A339 over South Fork Bear Creek

Dickson County, Tennessee · rated Good in the 2025 National Bridge Inventory

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

Nfa A339 over South Fork Bear Creek in Dickson County, Tennessee, 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 2018, making it 7 years old at the 2025 inventory.
It carries about 30 vehicles a day (traffic count year 2020).
Its listed owner is the county highway agency.
It is one of 141 of the 242 inventoried bridges in Dickson County rated good (58.3%); 12 (5.0%) 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


Structure	Prestressed concrete single box beam
Length	about 49 ft
Location	4 M. S. I40.
NBI structure number	220A3390003
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
I40 over I40 Rl /SR 840-rmp-nw&se	2000	50,777	Fair
I40 over I40 Ll /SR 840-rmp-nw&se	2000	50,777	Fair
I40 over Piney River & Nfa A361	1963	34,978	Fair
I40 over Piney River & Nfa A361	1963	34,978	Fair
I40 over I40-rl / East Piney Rd.	1963	34,978	Poor
I40 over I40-ll / East Piney Rd.	1963	34,978	Poor