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Sth 121 over S Fk Elk Creek

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

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

Sth 121 over S Fk Elk Creek in Buffalo County, Wisconsin, is rated in fair condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the substructure, rated 6 (satisfactory condition) on the 0-9 scale.
It was built in 1986 and reconstructed in 2019, making it 39 years old at the 2025 inventory.
It carries about 470 vehicles a day (traffic count year 2022).
Its listed owner is the state highway agency.
It is one of 76 of the 239 inventoried bridges in Buffalo County rated fair (31.8%); 20 (8.4%) 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	Prestressed concrete stringer or multi-beam girder
Length	about 71 ft
Location	1.3M E Jct Cth H
NBI structure number	B06005000000000
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
Sth 54 over Mississippi River 08	1942	10,200	Fair
Sth 54 over Bn RR	1941	10,200	Fair
Sth 35-sth 54 over Chicken Valley Creek	1980	7,800	Good
Ush 10-sth 37-main over Brown Lee Creek	1991	7,500	Fair
Sth 35 over Mississippi River Tribut	2023	5,500	Good
Sth 35-main St over Mississippi River Tribut	2023	5,500	Good