Mn 15 over Buffalo Creek
McLeod County, Minnesota · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Mn 15 over Buffalo Creek in McLeod County, Minnesota, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 1998, making it 27 years old at the 2025 inventory.
- It carries about 3,654 vehicles a day (traffic count year 2021).
- Its listed owner is the state highway agency.
- It is one of 34 of the 77 inventoried bridges in McLeod County rated fair (44.2%); 4 (5.2%) 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 September 2024, on a 24-month routine inspection cycle.
- A fair rating means the lowest-rated major component scores 5 or 6 on FHWA's 0-9 scale: some deterioration or minor section loss, but the structure is sound. It is the middle class, not a warning.
View this bridge on a map → (44.75756, -94.37442)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 6 | 6 | Satisfactory condition |
| Superstructure | 7 | 7 | Good condition |
| Substructure | 8 | 8 | Very good condition |
Bridge details
| Structure | Continuous concrete slab |
| Length | about 91 ft |
| Location | 3.0 Mi N of Brownton |
| NBI structure number | 43009 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | September 2024 |
| 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 McLeod County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Mn 15 over S Fk Crow River | 2006 | 11,100 | Good |
| Msas 117 over South Fork Crow River | 1978 | 9,300 | Fair |
| Msas 117 over Luce Line Trail; Ditch | 1978 | 9,300 | Fair |
| Mn 7 over Otter Creek | 1936 | 7,626 | Fair |
| Csah 25 over South Fork Crow River | 1996 | 7,300 | Fair |
| Mn 22 over S Fk Crow River | 1989 | 6,462 | Good |
All bridges nearby: McLeod County, MN bridge conditions · every bridge in McLeod County · Minnesota bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.