Checked
Oregon 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
- 8,329
- Good condition
- 31.8%
- 2,645
- Poor condition
- 5.1%
- 422
- Weight-limited or closed
- 1,097
Bridges by county
| County | Bridges | Good | Poor | Weight-limited | Avg. year built |
|---|---|---|---|---|---|
| Baker County | 188 | 29.3% | 4.8% (9) | 25 | 1972 |
| Benton County | 190 | 26.3% | 10.5% (20) | 48 | 1974 |
| Clackamas County | 367 | 30.8% | 4.6% (17) | 48 | 1975 |
| Clatsop County | 155 | 32.3% | 5.2% (8) | 19 | 1974 |
| Columbia County | 128 | 32.8% | 9.4% (12) | 20 | 1979 |
| Coos County | 255 | 34.1% | 3.1% (8) | 35 | 1978 |
| Crook County | 78 | 47.4% | 2.6% (2) | 10 | 1980 |
| Curry County | 101 | 28.7% | 5.9% (6) | 9 | 1969 |
| Deschutes County | 156 | 50% | 1.3% (2) | 7 | 1988 |
| Douglas County | 703 | 35% | 2.4% (17) | 74 | 1973 |
| Gilliam County | 35 | 45.7% | 0% (0) | 1 | 1976 |
| Grant County | 145 | 47.6% | 4.1% (6) | 18 | 1981 |
| Harney County | 128 | 50.8% | 1.6% (2) | 25 | 1985 |
| Hood River County | 82 | 37.8% | 2.4% (2) | 6 | 1977 |
| Jackson County | 401 | 38.2% | 1.2% (5) | 32 | 1977 |
| Jefferson County | 80 | 46.3% | 8.8% (7) | 16 | 1980 |
| Josephine County | 224 | 36.2% | 2.7% (6) | 38 | 1971 |
| Klamath County | 248 | 39.5% | 4.4% (11) | 24 | 1979 |
| Lake County | 95 | 41.1% | 7.4% (7) | 7 | 1981 |
| Lane County | 1,011 | 34.2% | 1.6% (16) | 84 | 1975 |
| Lincoln County | 190 | 35.8% | 8.4% (16) | 29 | 1975 |
| Linn County | 564 | 18.8% | 16.8% (95) | 71 | 1971 |
| Malheur County | 181 | 31.5% | 1.7% (3) | 39 | 1976 |
| Marion County | 375 | 22.4% | 7.7% (29) | 86 | 1971 |
| Morrow County | 71 | 40.8% | 4.2% (3) | 14 | 1976 |
| Multnomah County | 473 | 11.8% | 2.5% (12) | 67 | 1967 |
| Polk County | 162 | 22.8% | 7.4% (12) | 19 | 1977 |
| Sherman County | 48 | 27.1% | 4.2% (2) | 8 | 1963 |
| Tillamook County | 228 | 29.8% | 6.6% (15) | 30 | 1979 |
| Umatilla County | 321 | 29.3% | 4.4% (14) | 74 | 1973 |
| Union County | 169 | 45% | 4.7% (8) | 9 | 1980 |
| Wallowa County | 113 | 49.6% | 8.8% (10) | 17 | 1979 |
| Wasco County | 148 | 25.7% | 10.8% (16) | 29 | 1969 |
| Washington County | 334 | 28.7% | 3.3% (11) | 14 | 1984 |
| Wheeler County | 32 | 34.4% | 0% (0) | 2 | 1974 |
| Yamhill County | 150 | 22.7% | 8.7% (13) | 17 | 1975 |
Frequently asked questions
- How many bridges in Oregon are in poor condition?
- In the 2025 National Bridge Inventory, 422 of 8,329 highway bridges in Oregon were rated poor (5.1% of rated bridges).
- Which Oregon counties have the most bridges in poor condition?
- Among counties with at least 30 bridges, the highest shares rated poor are Linn County (16.8%), Wasco County (10.8%), Benton County (10.5%), Columbia County (9.4%), Jefferson County (8.8%).
Source: Federal Highway Administration, National Bridge Inventory · 2025 data