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1500 E over Mchenry Slough

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

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

1500 E over Mchenry Slough in White County, Illinois, is rated in poor condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 4 (poor condition) on the 0-9 scale.
It was built in 2008, making it 17 years old at the 2025 inventory.
It carries about 225 vehicles a day (traffic count year 2024).
Its listed owner is a town or township highway agency.
It is one of 14 of the 213 inventoried bridges in White County rated poor (6.6%); 14 (6.6%) 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


Structure	Prestressed concrete multiple box beam
Length	about 52 ft
Location	3 Mi N of Epworth
NBI structure number	097326000000000
Condition class	Poor

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

Bridge	Built	Vehicles/day	Condition
I 64 over Trib Little Wabash R	1975	10,800	Good
I 64 over Drainage Ditch	1975	10,800	Fair
Fap-332 (ill 1) over Stream	1985	9,150	Fair
I 64 EB over Ill-1 & RR Abandoned	1969	7,450	Fair
I 64 WB over Ill-i & RR Abandoned	1969	7,450	Fair
I 64 EB over Tr-422 & Wabash Rv	1967	7,450	Poor