Csah 40 over Mississippi River
Clearwater County, Minnesota · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Csah 40 over Mississippi River in Clearwater County, Minnesota, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 1982, making it 43 years old at the 2025 inventory.
- It carries about 300 vehicles a day (traffic count year 2015).
- Its listed owner is the county highway agency.
- It is one of 26 of the 50 inventoried bridges in Clearwater County rated fair (52.0%); 0 (0.0%) 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 → (47.34008, -95.20977)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 6 | Satisfactory condition |
| Superstructure | 7 | Good condition |
| Substructure | 7 | Good condition |
Bridge details
| Structure | Timber slab |
| Length | about 89 ft |
| Location | 0.7 Mi E of Jct Csah 2 |
| NBI structure number | 15509 |
| Condition class | Fair |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Minnesota department of transportation.
Busiest bridges in Clearwater County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Mn 1 over Sandy River | 2010 | 3,300 | Good |
| US 2 over Clearwater River | 1966 | 2,808 | Fair |
| Mn 92 over Clearwater River | 1942 | 2,750 | Fair |
| US 2 over Clearwater River | 1988 | 2,474 | Fair |
| Mn 92 over Silver Creek | 1930 | 1,350 | Fair |
| Mn 92 over Wild Rice River | 1977 | 1,125 | Fair |
All bridges nearby: Clearwater County, MN bridge conditions · every bridge in Clearwater County · Minnesota bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.