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I-55 SB over Norfolk & So. RR

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

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

I-55 SB over Norfolk & So. RR in Livingston County, Illinois, 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 2011, making it 14 years old at the 2025 inventory.
It carries about 11,450 vehicles a day (traffic count year 2023).
Its listed owner is the state highway agency.
It is one of 235 of the 579 inventoried bridges in Livingston County rated fair (40.6%); 46 (7.9%) 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 150 ft
Location	0.5 Mi N. Il 17
NBI structure number	053018600000000
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
Fai 55 over Wolf Creek	1976	22,300	Good
Fai-55 & E975 N Rd over Drainage Ditch	1977	21,000	Fair
I-55 over Stream	1977	21,000	Good
Ill 116 over Turtle Creek	1941	12,300	Good
I-55 NB over Norfolk & So RR	2011	11,450	Fair
Ill 116 over I-55	1974	11,000	Fair