Csah 8 over Knife River
Kanabec County, Minnesota · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Csah 8 over Knife River in Kanabec County, Minnesota, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the substructure, rated 5 (fair condition) on the 0-9 scale.
- It was built in 1967, making it 58 years old at the 2025 inventory.
- It carries about 275 vehicles a day (traffic count year 2018).
- Its listed owner is the county highway agency.
- It is one of 32 of the 82 inventoried bridges in Kanabec County rated fair (39.0%); 3 (3.7%) are rated poor.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- Its condition class and component ratings are unchanged from the 2024 inventory.
- Its most recent inspection on record is dated November 2023, 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 → (45.97479, -93.329)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 6 | 6 | Satisfactory condition |
| Superstructure | 6 | 6 | Satisfactory condition |
| Substructure | 5 | 5 | Fair condition |
Bridge details
| Structure | Continuous steel stringer or multi-beam girder |
| Length | about 111 ft |
| Location | 0.4 Mi S of Jct CR 88 |
| NBI structure number | 33506 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | November 2023 |
| 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 Kanabec County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Mn 65 over Snake River | 2022 | 11,800 | Good |
| Mn 65 over Ann River | 2007 | 7,000 | Good |
| Mn 23 over S Fk Groundhouse River | 2024 | 6,290 | Good |
| Mn 23 over Groundhouse River | 1998 | 6,000 | Good |
| Mn 65 over Groundhouse River | 2007 | 5,975 | Fair |
| Mn 23 over Ann River | 1951 | 5,800 | Fair |
All bridges nearby: Kanabec County, MN bridge conditions · every bridge in Kanabec County · Minnesota bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.