US 12 over Stony Run
Big Stone County, Minnesota · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- US 12 over Stony Run in Big Stone County, Minnesota, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the culvert, rated 8 (very good condition) on the 0-9 scale.
- It was built in 2021, making it 4 years old at the 2025 inventory.
- It carries about 1,250 vehicles a day (traffic count year 2020).
- Its listed owner is the state highway agency.
- It is one of 10 of the 17 inventoried bridges in Big Stone County rated good (58.8%); 1 (5.9%) 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 → (45.29798, -96.34561)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Culvert | 8 | Very good condition |
Bridge details
| Structure | Concrete culvert |
| Length | about 49 ft |
| Location | 4.1 Mi E of Jct US 75 |
| NBI structure number | 06X01 |
| Condition class | Good |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Minnesota department of transportation.
Busiest bridges in Big Stone County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US 12 over Minnesota River | 2012 | 4,366 | Fair |
| US 75 over Stony Run | 1932 | 1,527 | Fair |
| Csah 30 over Minnesota River | 2007 | 1,400 | Good |
| Mn 7 over Five Mile Creek | 1934 | 1,137 | Fair |
| Mn 28 over Co Ditch # 10 | 1978 | 1,035 | Fair |
| US 75 over BNSF Rail | 1992 | 590 | Good |
All bridges nearby: Big Stone County, MN bridge conditions · every bridge in Big Stone County · Minnesota bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.