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Lrd Marengo Lake R over Marengo River

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

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

Lrd Marengo Lake R over Marengo River in Bayfield County, Wisconsin, is rated in fair condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 6 (satisfactory condition) on the 0-9 scale.
It was built in 1973, making it 52 years old at the 2025 inventory.
It carries about 24 vehicles a day (traffic count year 2022).
Its listed owner is a town or township highway agency.
It is one of 48 of the 103 inventoried bridges in Bayfield County rated fair (46.6%); 6 (5.8%) 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	Steel stringer or multi-beam girder
Length	about 41 ft
Location	8.0M S Jct Cth E
NBI structure number	P04007400000000
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
Ush 2-sth 13 over Fish Creek	1991	11,600	Fair
Ush 2-sth 13 over Fish Creek	1991	11,600	Fair
Sth 13 over Whittlesey Creek	1954	7,500	Fair
Sth 13 over Little Whittlesey Crk	1981	7,100	Fair
Sth 13 over Terwilliger Creek	2019	7,100	Good
Sth 13 over Boyd Creek	2020	7,100	Good