Bridge conditions in Lafayette County, Wisconsin
217 inventoried bridges · 21 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
The federal inventory lists 217 bridges in Lafayette County: 102 rated good, 94 fair, and 21 poor.
- 21 of the 217 bridges in Lafayette County, Wisconsin, are rated in poor condition (9.7%) in the 2025 National Bridge Inventory, as of .
- 102 bridges (47.0%) are rated good and 94 (43.3%) fair.
- The median Lafayette County bridge was built in 1983.
- The busiest poor-rated bridge is Sth 11 over Br Shullsburg Branch (built 1947), carrying about 2,200 vehicles a day.
Good 47.0% · Fair 43.3% · Poor 9.7% of 217 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 11 over Br Shullsburg Branch | 1947 | 2,200 | Poor |
| Cth F over Steiner Branch | 1936 | 505 | Poor |
| Cth F over Yellowstone River | 1936 | 505 | Poor |
| Cth M over Br E Br Pecatonica River | 1948 | 380 | Poor |
| Cth I over Ellis Branch | 1930 | 293 | Poor |
| Cth E over Ames Branch | 1966 | 282 | Poor |
| Cth E over Br Ames Branch | 1966 | 282 | Poor |
| Cth O over Mineral Point Branch | 1970 | 199 | Poor |
| Lrd Twin Bridge Rd over Galena River | 1965 | 176 | Poor |
| Cth S over Canon Creek | 1961 | 140 | Poor |
| Lrd Cisserville Rd over E Br Pecatonica River | 1961 | 105 | Poor |
| Cth Dd over Spafford Creek | 1959 | 94 | Poor |
| Lrd Kingsley Rd over Wolf Creek | 1930 | 88 | Poor |
| Lrd Dunbarton Rd over Trout Brook | 1929 | 88 | Poor |
| Lrd Carr Factory R over Br Galena River | 1950 | 88 | Poor |
| Lrd W Puddle Dock over Dougherty Creek | 1938 | 88 | Poor |
| Lrd Jericho Rd over Jones Branch | 1930 | 82 | Poor |
| Lrd Oak Park Rd over Pecatonica River | 1940 | 58 | Poor |
| Lrd Trotter Rd over Trotter Branch | 1930 | 47 | Poor |
| Lrd Palfrey Rd over Shullsburg Branch | 1929 | 47 | Poor |
| Lrd E Brennan Lane over Brennan Creek | 1930 | 5 | Poor |
Busiest bridges in the county
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Sth 23-sth 81-main over Pecatonica River | 1968 | 10,400 | Fair |
| Ush 151 over Galena R Headwaters | 2004 | 9,800 | Fair |
| Ush 151 NB over Cottage Inn Branch | 2002 | 5,250 | Fair |
| Ush 151 SB over Cottage Inn Branch | 2003 | 5,250 | Good |
| Ush 151 NB over Lrd Private Drive/pecato | 2002 | 5,250 | Good |
| Ush 151 SB over Pecatonica River | 2003 | 5,250 | Good |
| Ush 151 NB over Lrd West Mound Rd | 2004 | 4,900 | Fair |
| Ush 151 SB over Lrd West Mound Rd | 2004 | 4,900 | Good |
| Ush 151 NB over Bonner Br | 2004 | 4,900 | Fair |
| Ush 151 SB over Bonner Br | 2004 | 4,900 | 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.