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Tr-173 over Trib Lost Creek Drai

Hamilton County, Illinois · rated Poor in the 2025 National Bridge Inventory

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

Tr-173 over Trib Lost Creek Drai in Hamilton County, Illinois, is rated in poor condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the culvert, rated 4 (poor condition) on the 0-9 scale.
It was built in 1981, making it 44 years old at the 2025 inventory.
It carries about 50 vehicles a day (traffic count year 2022).
Its listed owner is a town or township highway agency.
It is one of 4 of the 169 inventoried bridges in Hamilton County rated poor (2.4%); 4 (2.4%) are rated poor.
A poor rating means at least one major component - deck, superstructure, or substructure - is rated 4 or lower on FHWA's 0-9 scale. It does not by itself mean the bridge is unsafe; bridges judged unsafe are closed or load-restricted by their owners.

Component ratings

Component	Rating (2025)	FHWA scale meaning
Culvert	4	Poor condition

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

Bridge	Built	Vehicles/day	Condition
Il 14 over Stream	2018	4,300	Good
Fap-853 (ill-14) over Bear Creek	1923	3,200	Poor
Fap-855 (ill-14) over Lakey Creek	1923	3,200	Fair
Fap-776 (ill 142) over Stream	1992	3,150	Good
Fap-849 (ill-142) over Middle Creek	1929	2,700	Fair
Fap-849 (ill-142) over Stream	1929	2,700	Fair