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I 57 NB over W. South St - Ch 39

Jefferson County, Illinois · rated Good in the 2025 National Bridge Inventory

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

I 57 NB over W. South St - Ch 39 in Jefferson County, Illinois, is rated in good condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 9 (excellent condition) on the 0-9 scale.
It was built in 2023, making it 2 years old at the 2025 inventory.
It carries about 10,800 vehicles a day (traffic count year 2024).
Its listed owner is the state highway agency.
It is one of 114 of the 259 inventoried bridges in Jefferson County rated good (44.0%); 21 (8.1%) 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 154 ft
Location	Dix Interchange
NBI structure number	041011500000000
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
I 64 over Oak Ridge School Ck	1974	28,600	Fair
I 64 over Harper Creek	1974	28,300	Fair
I 64 over Pierce Creek	1974	28,300	Fair
I 57 NB over Fap-726 & Un Pacf RR	1968	21,400	Good
I 57 SB over Fap-726 & Un Pacf RR	1968	21,400	Fair
I 57 NB over Ew RR	1967	21,400	Fair