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Dellos Rd over Aux Sable CR

Will County, Illinois · rated Fair in the 2025 National Bridge Inventory

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

Dellos Rd over Aux Sable CR in Will County, Illinois, is rated in fair condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the superstructure, rated 5 (fair condition) on the 0-9 scale.
It was built in 1873 and reconstructed in 1967, making it 152 years old at the 2025 inventory.
It carries about 200 vehicles a day (traffic count year 2024).
Its listed owner is a city or municipal highway agency.
It is one of 307 of the 656 inventoried bridges in Will County rated fair (46.8%); 65 (9.9%) are rated poor.
A fair rating means the lowest-rated major component scores 5 or 6 on FHWA's 0-9 scale: some deterioration or minor section loss, but the structure is sound. It is the middle class, not a warning.

Component ratings

Component	Rating (2025)	FHWA scale meaning
Superstructure	5	Fair condition
Substructure	5	Fair condition

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

Bridge	Built	Vehicles/day	Condition
I- 55 over Il 53	1980	108,500	Fair
I- 80 over Creek	1967	96,000	Fair
I- 80 over Marley Creek	1966	94,400	Good
I-355 over I55 Rmp to NBI355	2007	83,900	Fair
I- 55 over Lily Cache Creek	2007	83,500	Fair
I- 55 over Joliet Rd	1955	73,200	Poor