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Sth 105-union St over St Louis River

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

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

Sth 105-union St over St Louis River in Douglas 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 5 (fair condition) on the 0-9 scale.
It was built in 1910 and reconstructed in 2001, making it 115 years old at the 2025 inventory.
It carries about 2,205 vehicles a day (traffic count year 2022).
It is one of 54 of the 136 inventoried bridges in Douglas County rated fair (39.7%); 20 (14.7%) 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	Steel stringer or multi-beam girder
Length	about 1,904 ft
Location	at Minnesota State Line
NBI structure number	B16075500000000
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
I 535 over St Louis R; RR Street	1961	28,098	Poor
Ush 2-ush 53-e 2ND over Nemadji River	1989	23,300	Fair
Ush 2-ush 53-e 2ND over Bluff Creek	1989	23,300	Good
Ush 2-ush 53-e 2ND over Lrd Service Road	1989	20,400	Good
Ush 53-e 2ND St over Lstt RR	1962	19,500	Fair
Ush 53-e 2ND St over Soo Line	1962	19,500	Fair