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SR 74 over I-75 (EXIT163)@162.91

Bibb County, Georgia · rated Good in the 2025 National Bridge Inventory

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

SR 74 over I-75 (EXIT163)@162.91 in Bibb County, Georgia, 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 1970, making it 55 years old at the 2025 inventory.
It carries about 22,000 vehicles a day (traffic count year 2024).
Its listed owner is the state highway agency.
It is one of 179 of the 226 inventoried bridges in Bibb County rated good (79.2%); 0 (0.0%) 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	Continuous steel stringer or multi-beam girder
Length	about 247 ft
Location	In SE Macon
NBI structure number	000000002101740
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
I-75 over Coppas Branch	1963	92,100	Fair
I-75 over Ocmulgee River Trib	1967	82,900	Good
I-75 over Ocmulgee River Trib	1967	82,900	Good
I-75 over Cs 367 Oglethorpe St	1967	78,100	Good
I-75 over Town Creek	1967	78,100	Good
I-475 Sbl over Tobesofkee Creek	1965	70,700	Good