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Fas 611 over Conover Branch

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

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

Fas 611 over Conover Branch 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 substructure, rated 6 (satisfactory condition) on the 0-9 scale.
It was built in 2005, making it 20 years old at the 2025 inventory.
It carries about 225 vehicles a day (traffic count year 2024).
Its listed owner is the county 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	Prestressed concrete multiple box beam
Length	about 243 ft
Location	3 Mi E Literberry
NBI structure number	069325400000000
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