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County Line Road over I-75 @ 123.76

Dooly County, Georgia · rated Fair in the 2025 National Bridge Inventory

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

County Line Road over I-75 @ 123.76 in Dooly County, Georgia, is rated in fair condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 6 (satisfactory condition) on the 0-9 scale.
It was built in 1961, making it 64 years old at the 2025 inventory.
It carries about 519 vehicles a day (traffic count year 2024).
Its listed owner is the state highway agency.
It is one of 14 of the 73 inventoried bridges in Dooly County rated fair (19.2%); 1 (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	Continuous steel stringer or multi-beam girder
Length	about 212 ft
Location	3.5 Mi NW of Unadilla
NBI structure number	000000009300420
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
I-75 over Pennahatchee Creek	1960	57,000	Good
I-75 over Camp Creek	1961	56,100	Good
I-75 over Sandy Mount Creek	1960	55,200	Good
I-75 over South Prong Creek Trib	1961	55,200	Good
I-75 over Nfs Railroad	1961	55,200	Fair
I-75 over SR 7 (US 41) Exit 120	1961	55,200	Good