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Thompson Rd. Tr 19 over Rock Creek

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

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

Thompson Rd. Tr 19 over Rock Creek in Carroll 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 2006, making it 19 years old at the 2025 inventory.
It carries about 25 vehicles a day (traffic count year 2021).
Its listed owner is a town or township highway agency.
It is one of 58 of the 180 inventoried bridges in Carroll County rated good (32.2%); 26 (14.4%) 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 106 ft
Location	4 Mi W Milledgeville
NBI structure number	008422700000000
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
Il 84 over BNSF RR	1988	5,550	Fair
Il 84 over Soo Line Rr/city St	1988	5,550	Fair
Ill 84 over Plum River	1978	4,200	Fair
US 52 & Il 64 over Straddle Creek	1996	3,500	Good
US 52 & Il 64 over Plum River	1999	3,450	Fair
Ill 73 over Straddle Creek	1989	3,350	Fair