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Tr 278 over Walnut Creek Trib

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

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

Tr 278 over Walnut Creek Trib in Knox 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 2015, making it 10 years old at the 2025 inventory.
It carries about 25 vehicles a day (traffic count year 2022).
Its listed owner is a town or township highway agency.
It is one of 149 of the 304 inventoried bridges in Knox County rated good (49.0%); 32 (10.5%) 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 69 ft
Location	2 Mi W. of Il. 180
NBI structure number	048340400000000
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
Fai 74 over Spoon Riv Tributary	1968	15,400	Fair
I-74 over Stream	1967	15,000	Fair
US 34 EB over US 150	1965	12,900	Fair
US 150 (main St) over Cedar Creek BNSF RR	2012	10,300	Fair
EB I-74 over Main (fau 6800)	1963	9,500	Fair
WB I-74 over E. Main St	1963	9,500	Fair