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Ch 20 over Main Union Sp. Ditch

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

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

Ch 20 over Main Union Sp. Ditch in Henry 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 2008, making it 17 years old at the 2025 inventory.
It carries about 300 vehicles a day (traffic count year 2020).
Its listed owner is the county highway agency.
It is one of 154 of the 329 inventoried bridges in Henry County rated good (46.8%); 42 (12.8%) 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 77 ft
Location	41/2 Mi. S.W. Hooppo
NBI structure number	037336200000000
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
I-80 over Drainage Ditch	1962	17,900	Fair
I 80 over Oat Creek	1961	17,300	Good
I74 & I280 over Turner Creek	1962	15,000	Fair
I-74 & 280 over Drainage Ditch	1962	15,000	Fair
I-74 over Mud Creek	1962	15,000	Good
I 74 over Stream	1962	15,000	Fair