Csah 6 over Lost River
Polk County, Minnesota · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Csah 6 over Lost River in Polk County, Minnesota, is rated in poor condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 3 (serious condition) on the 0-9 scale.
- It was built in 1967, making it 58 years old at the 2025 inventory.
- It carries about 140 vehicles a day (traffic count year 2017).
- Its listed owner is the county highway agency.
- It is one of 8 of the 269 inventoried bridges in Polk County rated poor (3.0%); 8 (3.0%) 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 → (47.83838, -95.73081)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 3 | Serious condition |
| Superstructure | 3 | Serious condition |
| Substructure | 7 | Good condition |
Bridge details
| Structure | Prestressed concrete slab |
| Length | about 82 ft |
| Location | 0.7 Mi S of Jct Csah 6 |
| NBI structure number | 60509 |
| Condition class | Poor |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Minnesota department of transportation.
Busiest bridges in Polk County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US 2 over Red River | 1963 | 15,475 | Fair |
| US 2 over 4th ST NW | 1964 | 13,700 | Fair |
| US 2B over Red River | 1929 | 13,400 | Fair |
| Msas 119 over Red Lake River | 1980 | 7,400 | Fair |
| Msas 113 over Red River of the North | 1967 | 6,630 | Fair |
| US 2 over Red Lake River | 1990 | 4,760 | Fair |
All bridges nearby: Polk County, MN bridge conditions · every bridge in Polk County · Minnesota bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.