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Ush 18 over Bark River

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

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

Ush 18 over Bark River in Waukesha County, Wisconsin, is rated in good condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 9 (excellent condition) on the 0-9 scale.
It was built in 2024, making it 1 years old at the 2025 inventory.
It carries about 6,167 vehicles a day (traffic count year 2024).
Its listed owner is the state highway agency.
It is one of 176 of the 370 inventoried bridges in Waukesha County rated good (47.6%); 20 (5.4%) 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

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