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Sth 33 over Ih 39

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

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

Sth 33 over Ih 39 in Columbia 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 5 (fair condition) on the 0-9 scale.
It was built in 1962 and reconstructed in 1986, making it 63 years old at the 2025 inventory.
It carries about 8,000 vehicles a day (traffic count year 2021).
Its listed owner is the state highway agency.
It is one of 119 of the 182 inventoried bridges in Columbia County rated fair (65.4%); 17 (9.3%) 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 steel stringer or multi-beam girder
Length	about 222 ft
Location	2.0M E Jct Ih 90 to E
NBI structure number	B11005400000000
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
Ih 39 Sb-90 Eb-ih over Sth 60	2024	30,150	Good
Ih 90 Eb-ih 94 EB over Lrd Smokey Hollow Rd	1961	29,350	Fair
Ih 90 Wb-ih 94 WB over Br Rowan Creek	1961	29,350	Fair
Ih 90 Wb-ih 94 WB over Br Rowan Creek	1961	29,350	Fair
Ih 90 Wb-ih 94 WB over Br Rowan Creek	1961	29,350	Fair
Ih 90 Wb-ih 94 WB over Br Rowan Creek	1961	29,350	Fair