Csah 6 over Swan River
Morrison County, Minnesota · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Csah 6 over Swan River in Morrison County, Minnesota, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 8 (very good condition) on the 0-9 scale.
- It was built in 2023, making it 2 years old at the 2025 inventory.
- It carries about 470 vehicles a day (traffic count year 2022).
- Its listed owner is the county highway agency.
- It is one of 99 of the 164 inventoried bridges in Morrison County rated good (60.4%); 5 (3.0%) 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 October 2023, on a 24-month routine inspection cycle.
- A good rating means every major component - deck, superstructure, substructure, or culvert - is rated 7 or higher on FHWA's 0-9 scale: no more than minor problems.
View this bridge on a map → (45.91528, -94.47258)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 8 | 8 | Very good condition |
| Superstructure | 9 | 9 | Excellent condition |
| Substructure | 9 | 9 | Excellent condition |
Bridge details
| Structure | Prestressed concrete stringer or multi-beam girder |
| Length | about 84 ft |
| Location | 0.2 Mi S of Jct Csah 12 |
| NBI structure number | 49558 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | October 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 Morrison County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Mn 27 over Mississippi River | 1941 | 14,200 | Fair |
| Mn 371 over Fletcher Creek | 2005 | 12,900 | Fair |
| US 10 over BNSF RR; Csah 76 | 1974 | 11,000 | Fair |
| US 10 over Mississippi River | 1973 | 11,000 | Fair |
| US 10 over Miss. River Back Channel | 2010 | 11,000 | Good |
| US 10 over Mn 27 | 1973 | 10,376 | Good |
All bridges nearby: Morrison County, MN bridge conditions · every bridge in Morrison County · Minnesota bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.