Checked
Utah Bridge Conditions
Highway bridges longer than 20 feet in the 2025 National Bridge Inventory
Yearly inspection ratings. A poor rating does not mean a bridge is unsafe to use.
- Highway bridges
- 3,144
- Good condition
- 21%
- 659
- Poor condition
- 3.5%
- 109
- Weight-limited or closed
- 262
Bridges by county
| County | Bridges | Good | Poor | Weight-limited | Avg. year built |
|---|---|---|---|---|---|
| Beaver County | 53 | 15.1% | 3.8% (2) | 3 | 1980 |
| Box Elder County | 184 | 22.8% | 6% (11) | 21 | 1977 |
| Cache County | 96 | 17.7% | 7.3% (7) | 11 | 1975 |
| Carbon County | 72 | 18.1% | 2.8% (2) | 6 | 1975 |
| Daggett County | 13 | 53.8% | 0% (0) | 2 | 1975 |
| Davis County | 147 | 31.3% | 0.7% (1) | 1 | 1998 |
| Duchesne County | 89 | 20.2% | 6.7% (6) | 17 | 1987 |
| Emery County | 125 | 18.4% | 0.8% (1) | 10 | 1979 |
| Garfield County | 93 | 21.5% | 5.4% (5) | 21 | 1979 |
| Grand County | 121 | 18.2% | 0.8% (1) | 8 | 1973 |
| Iron County | 69 | 11.6% | 1.4% (1) | 1 | 1976 |
| Juab County | 60 | 6.7% | 3.3% (2) | 2 | 1980 |
| Kane County | 30 | 10% | 0% (0) | 2 | 1978 |
| Millard County | 72 | 11.1% | 2.8% (2) | 4 | 1978 |
| Morgan County | 55 | 3.6% | 3.6% (2) | 8 | 1969 |
| Piute County | 19 | 21.1% | 0% (0) | 3 | 1987 |
| Rich County | 20 | 15% | 20% (4) | 8 | 1955 |
| Salt Lake County | 666 | 22.1% | 4.4% (29) | 33 | 1993 |
| San Juan County | 49 | 24.5% | 0% (0) | 2 | 1974 |
| Sanpete County | 52 | 25% | 0% (0) | 7 | 1986 |
| Sevier County | 157 | 14.6% | 0.6% (1) | 5 | 1983 |
| Summit County | 137 | 11.7% | 9.5% (13) | 21 | 1982 |
| Tooele County | 35 | 11.4% | 0% (0) | 0 | 1979 |
| Uintah County | 90 | 30% | 3.3% (3) | 10 | 1990 |
| Utah County | 274 | 36.9% | 1.1% (3) | 13 | 1995 |
| Wasatch County | 32 | 18.8% | 3.1% (1) | 5 | 1989 |
| Washington County | 177 | 18.6% | 0.6% (1) | 9 | 1988 |
| Wayne County | 28 | 28.6% | 7.1% (2) | 2 | 1977 |
| Weber County | 129 | 16.3% | 7% (9) | 20 | 1980 |
Frequently asked questions
- How many bridges in Utah are in poor condition?
- In the 2025 National Bridge Inventory, 109 of 3,144 highway bridges in Utah were rated poor (3.5% of rated bridges).
- Which Utah counties have the most bridges in poor condition?
- Among counties with at least 30 bridges, the highest shares rated poor are Summit County (9.5%), Cache County (7.3%), Weber County (7%), Duchesne County (6.7%), Box Elder County (6%).
Source: Federal Highway Administration, National Bridge Inventory · 2025 data