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FAS-272 Braceville over Mazon River

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

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

FAS-272 Braceville over Mazon River in Grundy 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 1970 and reconstructed in 2019, making it 55 years old at the 2025 inventory.
It carries about 750 vehicles a day (traffic count year 2024).
Its listed owner is the county highway agency.
It is one of 97 of the 268 inventoried bridges in Grundy County rated good (36.2%); 76 (28.4%) 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	Continuous steel stringer or multi-beam girder
Length	about 225 ft
Location	0.2MI E at Gorman Rd
NBI structure number	032326000000000
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
Fai 80 (EB & WB) over Fas285/ch5/ridge Rd	2003	50,300	Fair
Fai 080 (EB & WB) over Walley Run CR	2003	39,100	Good
Fai 80 (EB & WB) over Aux Sable Crk	2003	39,100	Fair
Fai 80 (EB & WB) over Collins Run Creek	2003	39,100	Good
Fai-55 & Or 66 over Woods Run	1979	24,300	Good
I-55 over Brewster Run	1979	22,900	Good