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I 57 NB over ILL3/US 51-cs 6010a-cnic

Alexander County, Illinois · rated Fair in the 2025 National Bridge Inventory

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

I 57 NB over ILL3/US 51-cs 6010a-cnic in Alexander County, Illinois, is rated in fair condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the superstructure, rated 5 (fair condition) on the 0-9 scale.
It was built in 1978, making it 47 years old at the 2025 inventory.
It carries about 7,500 vehicles a day (traffic count year 2024).
Its listed owner is the state highway agency.
It is one of 59 of the 93 inventoried bridges in Alexander County rated fair (63.4%); 8 (8.6%) 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 3,016 ft
Location	Cairo Interchange
NBI structure number	002002300000000
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
Fai 57 over Mississippi River	1978	15,000	Fair
Fap 312-il 146 over Mississippi River	2003	9,350	Fair
Ill 146 over Drainage Ditch	2011	8,550	Good
I 57 SB over ILL3/US 51-cs 6010a-cnic	1978	7,500	Fair
Fai-57 NB over Tr-163b	1968	6,100	Fair
I 57 SB over Tr 163B Golden Lilly	1968	6,100	Fair