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US 20 EB over Sinsinawa River

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

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

US 20 EB over Sinsinawa River in Jo Daviess 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 6 (satisfactory condition) on the 0-9 scale.
It was built in 1966 and reconstructed in 2012, making it 59 years old at the 2025 inventory.
It carries about 8,650 vehicles a day (traffic count year 2023).
Its listed owner is the state highway agency.
It is one of 85 of the 192 inventoried bridges in Jo Daviess County rated fair (44.3%); 21 (10.9%) 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	Continuous steel stringer or multi-beam girder
Length	about 211 ft
Location	2.0 Mi W Jct ILL84
NBI structure number	043000700000000
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
US 20 over Miss River Hwy RR	1943	17,300	Fair
US20 EB over Little Menominee Riv	1965	10,900	Fair
US20 WB over Little Menominee Riv	1965	10,900	Fair
US 20 WB over Menominee Rd	1968	10,900	Fair
US 20 EB over Menominee River	1964	9,450	Fair
US 20 WB over Menominee River	1964	9,450	Fair