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Ush 45 over Milwaukee River

Fond du Lac County, Wisconsin · rated Fair in the 2025 National Bridge Inventory

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

Ush 45 over Milwaukee River in Fond du Lac County, Wisconsin, is rated in fair condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the substructure, rated 6 (satisfactory condition) on the 0-9 scale.
It was built in 1991, making it 34 years old at the 2025 inventory.
It carries about 2,500 vehicles a day (traffic count year 2023).
Its listed owner is the state highway agency.
It is one of 98 of the 252 inventoried bridges in Fond du Lac County rated fair (38.9%); 27 (10.7%) 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 stringer or multi-beam girder
Length	about 70 ft
Location	1.0M N Jct Sth 28 to W
NBI structure number	B20010200000000
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
Ih 41 over Supple Marsh Creek	1951	44,700	Fair
Sth 23 over Lrd Brooke Street	2001	29,100	Fair
Ih 41 NB over W Br Fond Du Lac River	1953	21,450	Fair
Ih 41 SB over W Br Fond Du Lac River	1961	21,450	Good
Ush 41 NB over Cth N	1999	21,450	Good
Ih 41 SB over Cth N	1999	21,450	Fair