Bridge conditions in Buffalo County, Wisconsin
239 inventoried bridges · 20 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
20 of the 239 bridges the federal inventory lists in Buffalo County are rated poor; the rest split 143 good and 76 fair.
- 20 of the 239 bridges in Buffalo County, Wisconsin, are rated in poor condition (8.4%) in the 2025 National Bridge Inventory, as of .
- 143 bridges (59.8%) are rated good and 76 (31.8%) fair.
- The median Buffalo County bridge was built in 1991.
- The busiest poor-rated bridge is Sth 35 over Slough (built 1933), carrying about 2,100 vehicles a day.
Good 59.8% · Fair 31.8% · Poor 8.4% of 239 bridges
Bridges rated poor
Every bridge in the county with a poor rating, busiest first. Poor means a major component is rated 4 or lower on FHWA's 0-9 scale; it is a repair flag, not a closure notice.
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Sth 35 over Slough | 1933 | 2,100 | Poor |
| Sth 35 over Slough | 1933 | 2,100 | Poor |
| Sth 35 over Slough | 1933 | 2,100 | Poor |
| Sth 35 over Slough | 1933 | 2,100 | Poor |
| Sth 35 over Slough | 1933 | 2,100 | Poor |
| Sth 35 over Slough | 1933 | 2,100 | Poor |
| Cth A over Farrington Creek | 1954 | 726 | Poor |
| Cth P over Trempealeau River | 1955 | 325 | Poor |
| Cth D over Norwegian Valley Creek | 1928 | 303 | Poor |
| Cth G over Br Eagle River | 1969 | 303 | Poor |
| Cth E over Little Waumandee Creek | 1952 | 271 | Poor |
| Lrd Four Corners R over Boland Valley Creek | 1930 | 205 | Poor |
| Cth Kk over Lee Valley Creek | 1974 | 130 | Poor |
| Lrd Bluff Siding F over Chicken Valley Creek | 1928 | 117 | Poor |
| Cth Xx over Johns Valley Creek | 1925 | 97 | Poor |
| Lrd Hovey Valley R over Elk Creek | 1927 | 58 | Poor |
| Lrd Owen Rd over Owens Valley Creek | 1973 | 47 | Poor |
| Lrd Motts Road (de over Tamarack River | 1982 | 20 | Poor |
| Lrd Block Rd (dead over Little Waumandee Creek | 1926 | 10 | Poor |
| Lrd Robelia Rd (de over Br Bear Creek | 1979 | 10 | Poor |
Busiest bridges in the county
| 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 |
| Sth 35-main St over Mississippi River Tribut | 2023 | 5,500 | Good |
| Sth 35 over Mississippi River Trib | 2019 | 5,400 | Good |
| Sth 35 over Mississippi River Trib | 2019 | 5,400 | Good |
| Sth 35-main St over Mississippi River Trib | 2019 | 5,400 | Good |
Source: FHWA National Bridge Inventory, 2025. Counts cover inventoried highway bridges over 20 feet; ratings are reported by the state DOT.
All of Wisconsin: Wisconsin bridge conditions by county · every download on the data page.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.