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Tr-173 over Whitaker Creek

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

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

Tr-173 over Whitaker Creek in Greene 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 1984, making it 41 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 82 of the 162 inventoried bridges in Greene County rated good (50.6%); 11 (6.8%) 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 95 ft
Location	5 Mi NE Carrollton
NBI structure number	031506200000000
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
US 67 over Link Branch	1952	5,000	Good
US 67 over Macoupin Creek	1969	4,750	Poor
US 67 over S Trib Macoupin Crk	1965	4,750	Good
US 67 over Seminary Creek	1972	3,900	Fair
US 67 over Apple Creek	1972	3,650	Fair
US 67 over Apple Creek Overflow	1972	3,650	Fair