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Ill 165 over Br Mackinaw River

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

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

Ill 165 over Br Mackinaw River in McLean 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 1990, making it 35 years old at the 2025 inventory.
It carries about 750 vehicles a day (traffic count year 2023).
Its listed owner is the state highway agency.
It is one of 379 of the 625 inventoried bridges in McLean County rated good (60.6%); 16 (2.6%) 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 stringer or multi-beam girder
Length	about 76 ft
Location	12.1 Mi N of Ill 9
NBI structure number	057022100000000
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
I-55/74 (NB & SB) over Unnamed Creek	1991	42,100	Fair
I-55 Busn Lp NB & over Sugar CR & Bike Path	2000	41,100	Fair
Fai 74 over Ditch	1966	28,400	Good
I-55 & FAS294 over Stream	1976	25,400	Fair
I-55 Busn Loop over US 51 at Bloomington	1939	25,000	Fair
I-55 Busn Loop over Norfolk Southern Railway	1940	25,000	Poor