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Tr 177 over Sugar Creek

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

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

Tr 177 over Sugar Creek in Richland 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 7 (good condition) on the 0-9 scale.
It was built in 2011, making it 14 years old at the 2025 inventory.
It carries about 75 vehicles a day (traffic count year 2022).
Its listed owner is a town or township highway agency.
It is one of 106 of the 151 inventoried bridges in Richland County rated good (70.2%); 6 (4.0%) 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	Prestressed concrete multiple box beam
Length	about 61 ft
Location	3 Mi SE Olney
NBI structure number	080321900000000
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
Fap-116 (ill-130) over Stream	1977	9,750	Fair
Fap-116 (ill-130) over East Fork Fox River	1927	5,800	Fair
Fap-116 (ill-130) over Long Br Fox River	1983	4,850	Fair
Fap 116(IL 130) over Little Fox River	1999	4,500	Good
Fap 116(IL 130) over Big Creek	1999	4,500	Good
Fap-327 (US-50) over Fox River	1961	4,200	Fair