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Fau 3792 Minkler R over Morgan Creek

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

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

Fau 3792 Minkler R over Morgan Creek in Kendall 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 1914 and reconstructed in 1980, making it 111 years old at the 2025 inventory.
It carries about 4,800 vehicles a day (traffic count year 2024).
Its listed owner is a city or municipal highway agency.
It is one of 49 of the 131 inventoried bridges in Kendall County rated fair (37.4%); 15 (11.5%) 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 44 ft
Location	1.5 Mi S. Il Rt 71
NBI structure number	047305600000000
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
Ill 47 over Fox River	1984	24,800	Fair
US 34/FAP 311 over Waubansee Creek	2002	24,700	Fair
US 34 over Blackberry Creek	2019	22,400	Good
US 34 over Waubansee Creek	2001	22,300	Fair
US 34 over Rob Roy Creek	2019	18,700	Good
Orchard Rd over Gates Cr/trib to Fox	2000	18,700	Fair