Csah 1 over Little Willow River
Aitkin County, Minnesota · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Csah 1 over Little Willow River in Aitkin County, Minnesota, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the culvert, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 1985, making it 40 years old at the 2025 inventory.
- It carries about 123 vehicles a day (traffic count year 2021).
- Its listed owner is the county highway agency.
- It is one of 38 of the 96 inventoried bridges in Aitkin County rated fair (39.6%); 8 (8.3%) are rated poor.
- A fair rating means the lowest-rated major component scores 5 or 6 on FHWA's 0-9 scale: some deterioration or minor section loss, but the structure is sound. It is the middle class, not a warning.
View this bridge on a map → (46.65129, -93.67571)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Culvert | 6 | Satisfactory condition |
Bridge details
| Structure | Concrete culvert |
| Length | about 26 ft |
| Location | 4.1 Mi S of Jct Csah 3 |
| NBI structure number | 95331 |
| Condition class | Fair |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Minnesota department of transportation.
Busiest bridges in Aitkin 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 |
All bridges nearby: Aitkin County, MN bridge conditions · every bridge in Aitkin County · Minnesota bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.