Bridge Condition Trends in Wisconsin
Between 2015 and 2025, bridge conditions in Wisconsin have improved. The share of bridges rated poor went from 8.0% to 6.7% — a change of -1.3 percentage points.
Condition Summary
| Year | Total | Good | Fair | Poor | Poor % |
|---|---|---|---|---|---|
| 2015 | 14,134 | 7,330 | 5,672 | 1,132 | 8.0% |
| 2020 | 14,271 | 7,334 | 5,958 | 979 | 6.9% |
| 2025 | 14,498 | 6,749 | 6,773 | 976 | 6.7% |
Most Improved Counties in Wisconsin
| County | Poor % (2015) | Poor % (2025) | Change |
|---|---|---|---|
| Iron | 10.8% | 4.2% | -6.6 pp |
| Menominee | 12.5% | 8.0% | -4.5 pp |
| Langlade | 9.2% | 7.7% | -1.5 pp |
| Oconto | 3.5% | 2.7% | -0.9 pp |
| Wood | 6.2% | 5.4% | -0.8 pp |
| Milwaukee | 5.4% | 4.8% | -0.6 pp |
| Florence | 5.6% | 5.0% | -0.6 pp |
| Adams | 2.5% | 2.4% | -0.1 pp |
Counties Where Conditions Worsened
| County | Poor % (2015) | Poor % (2025) | Change |
|---|---|---|---|
| Calumet | 0.0% | 17.5% | +17.5 pp |
| Oneida | 5.3% | 19.7% | +14.4 pp |
| Polk | 7.9% | 22.2% | +14.3 pp |
| Douglas | 4.2% | 14.7% | +10.5 pp |
| Chippewa | 1.5% | 11.1% | +9.6 pp |
| Sawyer | 7.9% | 17.3% | +9.5 pp |
| Racine | 4.8% | 13.5% | +8.7 pp |
| Trempealeau | 4.5% | 12.7% | +8.2 pp |
| Fond du Lac | 4.0% | 10.7% | +6.7 pp |
| Vernon | 1.3% | 7.5% | +6.2 pp |