Csah 5 over Boy River
Cass County, Minnesota · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Csah 5 over Boy River in Cass County, Minnesota, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the culvert, rated 7 (good condition) on the 0-9 scale.
- It was built in 1969, making it 56 years old at the 2025 inventory.
- It carries about 790 vehicles a day (traffic count year 2019).
- Its listed owner is the county highway agency.
- It is one of 40 of the 85 inventoried bridges in Cass County rated good (47.1%); 7 (8.2%) are rated poor.
- 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 → (46.94169, -94.33127)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Culvert | 7 | Good condition |
Bridge details
| Structure | Steel culvert |
| Length | about 20 ft |
| Location | 0.3 Mi E of Jct Csah 11 |
| NBI structure number | 92571 |
| Condition class | Good |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Minnesota department of transportation.
Busiest bridges in Cass County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Mn 210 over Gull River | 1952 | 9,175 | Fair |
| Mn 371 over Shingobee River | 1992 | 8,423 | Fair |
| Mn 210 over Mosquito Creek | 2002 | 6,510 | Fair |
| Mn 210 over Pillager Creek | 1953 | 6,510 | Fair |
| Mn 210 over Seven Mile Creek | 1953 | 6,510 | Fair |
| Mn 371 over S Fk Pine River | 1992 | 6,346 | Good |
All bridges nearby: Cass County, MN bridge conditions · every bridge in Cass County · Minnesota bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.