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Fas 529 (ch 7) over Lake Fork Ditch

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

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

Fas 529 (ch 7) over Lake Fork Ditch in Piatt 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 1999, making it 26 years old at the 2025 inventory.
It carries about 800 vehicles a day (traffic count year 2020).
Its listed owner is the county highway agency.
It is one of 137 of the 246 inventoried bridges in Piatt County rated good (55.7%); 14 (5.7%) 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 56 ft
Location	1 Mi E of Bement
NBI structure number	074328000000000
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
I-74 over Madden Creek Trib	1971	22,800	Good
I-74 over Madden Creek Trib	1971	22,800	Fair
I-74 over Stream	1970	21,500	Fair
I-72 over Stream	1976	11,400	Fair
I-72 over Wolf Run	1976	11,400	Fair
I-74 (EB) over S Branch Salt Creek	1970	10,750	Fair