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Fas 269 (ch 12) over Fai 39 US 51

LaSalle County, Illinois · rated Poor in the 2025 National Bridge Inventory

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

Fas 269 (ch 12) over Fai 39 US 51 in LaSalle County, Illinois, is rated in poor condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 4 (poor condition) on the 0-9 scale.
It was built in 1977, making it 48 years old at the 2025 inventory.
It carries about 325 vehicles a day (traffic count year 2020).
Its listed owner is the state highway agency.
It is one of 75 of the 528 inventoried bridges in LaSalle County rated poor (14.2%); 75 (14.2%) are rated poor.
A poor rating means at least one major component - deck, superstructure, or substructure - is rated 4 or lower on FHWA's 0-9 scale. It does not by itself mean the bridge is unsafe; bridges judged unsafe are closed or load-restricted by their owners.

Component ratings


Structure	Continuous steel single box beam
Length	about 262 ft
Location	3 Mi N of US 34
NBI structure number	050016200000000
Condition class	Poor

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

Bridge	Built	Vehicles/day	Condition
I-80 EB & WB over Clark Run Creek	2004	29,300	Good
Ill 71 and Ill 23 over Il Rv & Acc Rd	1981	22,900	Fair
I-39 US 51 over Il Rv/il 351/ Bo RR	1984	19,400	Fair
I-39/US 51 over Conveyor Belt/pvt Rd	1985	19,400	Fair
I-39 over SE Half Conveyor B	1961	19,400	Fair
I-39 US 51 over Stream	1989	19,400	Good