Mn 210 over Ripple River
Aitkin County, Minnesota · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Mn 210 over Ripple River in Aitkin County, Minnesota, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the substructure, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 1980, making it 45 years old at the 2025 inventory.
- It carries about 8,900 vehicles a day (traffic count year 2019).
- Its listed owner is the state 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.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- It was rated good in the 2024 inventory and is now fair (substructure 7 to 6).
- Its most recent inspection on record is dated August 2024, on a 24-month routine inspection cycle.
- 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 → (46.53336, -93.70247)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 7 | 7 | Good condition |
| Superstructure | 7 | 7 | Good condition |
| Substructure | 7 | 6 | Satisfactory condition |
Bridge details
| Structure | Continuous steel stringer or multi-beam girder |
| Length | about 82 ft |
| Location | 0.2 Mi E of W Jct Th 169 |
| NBI structure number | 01005 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | August 2024 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 5: foundations stable, scour within the limits of the footing or piles |
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 |
|---|---|---|---|
| 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 |
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.