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Tr 45 over W Fork Hamilton Ck

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

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

Tr 45 over W Fork Hamilton Ck in Brown 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 8 (very good condition) on the 0-9 scale.
It was built in 2005, making it 20 years old at the 2025 inventory.
It carries about 200 vehicles a day (traffic count year 2023).
Its listed owner is a town or township highway agency.
It is one of 34 of the 71 inventoried bridges in Brown County rated good (47.9%); 10 (14.1%) 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 82 ft
Location	.75 NE Mt Sterling
NBI structure number	005360300000000
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
US 24 over Lamoine River	2011	3,050	Fair
Il 107 over Mckee Creek	1950	1,400	Good
Il 99 over N Fork Shelby Creek	1931	750	Fair
Il 99 over Missouri Creek	1931	500	Fair
Ch 6 over Purpus Creek	1905	475	Fair
Ch 6 over Wells Fork	1949	450	Fair