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Old US 36/MORTON A over Bn RR

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

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

Old US 36/MORTON A over Bn RR in Morgan 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 2002, making it 23 years old at the 2025 inventory.
It carries about 7,050 vehicles a day (traffic count year 2023).
Its listed owner is the state highway agency.
It is one of 104 of the 234 inventoried bridges in Morgan County rated fair (44.4%); 17 (7.3%) 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 345 ft
Location	1.7M W I-72/US 36
NBI structure number	069050100000000
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
Bl72/il104/morton over Town Brook	1952	16,300	Fair
Fai 72 over N Fk Mauvaise Terre	1976	14,500	Fair
Fai 72 over Mauvaise Terre CR Br	1974	14,500	Good
Bus I72/IL104/MORT over Mauvaise Terre Creek	1957	10,400	Fair
Il 267/US 67/BL 67 over I-72/US 36	1975	9,100	Fair
Il 267 over Trib Mauvaise Terre	1989	9,100	Good