T 64 over Ripple River
Aitkin County, Minnesota · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- T 64 over Ripple River in Aitkin County, Minnesota, is rated in poor condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the culvert, rated 4 (poor condition) on the 0-9 scale.
- It was built in 1979, making it 46 years old at the 2025 inventory.
- It carries about 8 vehicles a day (traffic count year 1986).
- Its listed owner is a town or township highway agency.
- It is one of 8 of the 96 inventoried bridges in Aitkin County rated poor (8.3%); 8 (8.3%) are rated poor.
- A poor rating means at least one major component - deck, superstructure, or substructure - is rated 4 or lower on FHWA's 0-9 scale. It does not by itself mean the bridge is unsafe; bridges judged unsafe are closed or load-restricted by their owners.
View this bridge on a map → (46.39192, -93.66916)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Culvert | 4 | Poor condition |
Bridge details
| Structure | Steel culvert |
| Length | about 24 ft |
| Location | 1.0 Mi W;s of Jct CR 51 |
| NBI structure number | 95197 |
| Condition class | Poor |
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.