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Flat Bridge Road over South River

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

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

Flat Bridge Road over South River in Rockdale 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 1959, making it 66 years old at the 2025 inventory.
It carries about 11,256 vehicles a day (traffic count year 2024).
Its listed owner is the county highway agency.
It is one of 8 of the 44 inventoried bridges in Rockdale County rated fair (18.2%); 0 (0.0%) 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	Steel stringer or multi-beam girder
Length	about 151 ft
Location	5 Mi SW of Conyers
NBI structure number	000000024700160
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
SR 20 over I-20	1963	44,600	Fair
SR 20 over CSX Railroad	1963	34,600	Good
SR 20 over Old Covington Highway	2006	34,600	Good
Mcdonough Road over Almond Branch	1936	33,400	Good
Salem Road over I-20	1995	33,400	Good
SR 138 Ebl over Yellow River	1957	27,200	Fair