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Ih 43 NB over Fox River

Waukesha County, Wisconsin · rated Fair in the 2025 National Bridge Inventory

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

Ih 43 NB over Fox River in Waukesha County, Wisconsin, 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 1971, making it 54 years old at the 2025 inventory.
It carries about 17,400 vehicles a day (traffic count year 2022).
Its listed owner is the state highway agency.
It is one of 174 of the 370 inventoried bridges in Waukesha County rated fair (47.0%); 20 (5.4%) 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 prestressed concrete stringer or multi-beam girder
Length	about 201 ft
Location	2.0M N Jct Sth 83
NBI structure number	B67012800000000
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
Ih 94 over Poplar Creek	1961	133,000	Fair
Ih 94 over Br Poplar Creek	1961	133,000	Fair
Ih 94 over Pewaukee River	1957	112,000	Fair
Ih 41/USH 45 over Nor-x-way Channel	2018	86,800	Good
Ih 94 WB over Lrd Maple Ave	1962	75,000	Good
Ih 94 WB over Sth 83	1962	75,000	Fair