Mn 56 over Trib to Upper Iowa R
Fillmore County, Minnesota · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Mn 56 over Trib to Upper Iowa R in Fillmore 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 1992, making it 33 years old at the 2025 inventory.
- It carries about 977 vehicles a day (traffic count year 2022).
- Its listed owner is the state highway agency.
- It is one of 119 of the 348 inventoried bridges in Fillmore County rated good (34.2%); 7 (2.0%) 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 → (43.50768, -92.42407)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Culvert | 7 | Good condition |
Bridge details
| Structure | Concrete culvert |
| Length | about 26 ft |
| Location | 2.8 Mi W of Jct Th 63 |
| NBI structure number | 97248 |
| Condition class | Good |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Minnesota department of transportation.
Busiest bridges in Fillmore County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US 63 over Spring Valley Creek | 1936 | 6,108 | Fair |
| Mn 43 over Rush Creek | 2002 | 5,200 | Good |
| US 52 over S Br Root River | 1986 | 4,769 | Fair |
| US 63 over S Br Root River | 1978 | 4,443 | Fair |
| US 52 over Rice Creek | 1988 | 4,193 | Good |
| US 52 over N Br Root River | 1987 | 4,193 | Fair |
All bridges nearby: Fillmore County, MN bridge conditions · every bridge in Fillmore County · Minnesota bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.