Bridge conditions in Aitkin County, Minnesota
96 inventoried bridges · 8 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
8 of the 96 bridges the federal inventory lists in Aitkin County are rated poor; the rest split 50 good and 38 fair.
- 8 of the 96 bridges in Aitkin County, Minnesota, are rated in poor condition (8.3%) in the 2025 National Bridge Inventory, as of .
- 50 bridges (52.1%) are rated good and 38 (39.6%) fair.
- The median Aitkin County bridge was built in 1986.
- The busiest poor-rated bridge is Csah 22 over Wakefield Brook (built 1960), carrying about 730 vehicles a day.
Good 52.1% · Fair 39.6% · Poor 8.3% of 96 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 |
|---|---|---|---|
| Csah 22 over Wakefield Brook | 1960 | 730 | Poor |
| Mn 18 over Snake River | 1955 | 629 | Poor |
| Csah 2 over Snake River | 1958 | 418 | Poor |
| Csah 29 over Willow River | 1979 | 137 | Poor |
| Csah 5 over Rice River | 1969 | 131 | Poor |
| Spr 3 over Savanna River | 1977 | 10 | Poor |
| T 64 over Ripple River | 1979 | 8 | Poor |
| Spr 2 over Savanna River | 1965 | 1 | Poor |
Busiest bridges in the county
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Mn 210 over Ripple River | 1980 | 8,900 | Fair |
| US 169 over Ripple River | 1929 | 8,300 | Fair |
| US 169 over Ripple River | 1931 | 5,627 | Fair |
| Mn 65 over Sandy River | 2000 | 5,300 | Fair |
| Mn 65 over Minnewawa Creek | 2009 | 5,300 | Good |
| Mn 210 over Rice River | 1984 | 4,732 | Good |
| Mn 210 over Sissabagamah Creek | 2017 | 4,732 | Good |
| Mn 210 over BNSF RR | 1983 | 4,348 | Good |
| US 169 over Hill River | 1980 | 2,877 | Good |
| US 169 over Morrison Brook | 1983 | 2,877 | Good |
Source: FHWA National Bridge Inventory, 2025. Counts cover inventoried highway bridges over 20 feet; ratings are reported by the state DOT.
All of Minnesota: Minnesota 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.