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319TH St over Trim Creek

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

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

319TH St over Trim Creek 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 deck, rated 5 (fair condition) on the 0-9 scale.
It was built in 1980, making it 45 years old at the 2025 inventory.
It carries about 100 vehicles a day (traffic count year 2016).
Its listed owner is a town or township 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


Structure	Prestressed concrete multiple box beam
Length	about 66 ft
Location	0.9 Mi.w.il 1
NBI structure number	099500100000000
Condition class	Fair

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