Bridge conditions in Columbia County, Wisconsin
182 inventoried bridges · 17 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
17 of the 182 bridges the federal inventory lists in Columbia County are rated poor; the rest split 46 good and 119 fair.
- 17 of the 182 bridges in Columbia County, Wisconsin, are rated in poor condition (9.3%) in the 2025 National Bridge Inventory, as of .
- 46 bridges (25.3%) are rated good and 119 (65.4%) fair.
- The median Columbia County bridge was built in 1973.
- The busiest poor-rated bridge is Cth J over Spring Creek (built 1956), carrying about 792 vehicles a day.
Good 25.3% · Fair 65.4% · Poor 9.3% of 182 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 |
|---|---|---|---|
| Cth J over Spring Creek | 1956 | 792 | Poor |
| Cth Cm over Fox River | 1958 | 500 | Poor |
| Cth Cm over Neenah Creek | 1959 | 500 | Poor |
| Cth Vj over Rocky Run Creek | 1956 | 470 | Poor |
| Cth X over Big Slough | 1958 | 451 | Poor |
| Cth Cd over S Br Crawfish River | 1969 | 228 | Poor |
| Cth A over Union Pacific RR | 1910 | 197 | Poor |
| Lrd E Bush Rd over N Br Duck Creek | 1959 | 153 | Poor |
| Cth E over Fox River | 1955 | 149 | Poor |
| Cth Z over N Br Crawfish River | 1966 | 99 | Poor |
| Lrd Inglehart Rd over Union Pacific RR | 1930 | 81 | Poor |
| Lrd Mill St over Union Pacific RR | 1900 | 79 | Poor |
| Lrd Sterk Rd over Union Pacific RR | 1930 | 67 | Poor |
| Lrd Hall Rd over Crawfish River | 1961 | 56 | Poor |
| Lrd E Bush Rd over N Br Duck Creek | 1941 | 52 | Poor |
| Cth Dg over Beaver Creek | 1959 | 42 | Poor |
| Lrd Hill Rd (dead over Mid Br Duck Creek | 1968 | 4 | Poor |
Busiest bridges in the county
| 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 |
| Ih 39/90/94 NB over Sth 60 | 2023 | 29,000 | Good |
| Ih 90 Eb-ih 94 EB over Wisconsin River 10 | 1961 | 28,400 | Fair |
| Ih 90 Wb-ih 94 WB over Wisconsin River 11 | 1961 | 28,400 | Fair |
| Ih 90 Eb-ih 94 EB over Rowan Creek | 1961 | 28,400 | Fair |
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.