US 63 over S Fk Zumbro River
Olmsted County, Minnesota · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- US 63 over S Fk Zumbro River in Olmsted County, Minnesota, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the superstructure, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 1979, making it 46 years old at the 2025 inventory.
- It carries about 6,568 vehicles a day (traffic count year 2022).
- Its listed owner is the state highway agency.
- It is one of 127 of the 367 inventoried bridges in Olmsted County rated fair (34.6%); 5 (1.4%) are rated poor.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- It was rated good in the 2024 inventory and is now fair (superstructure 7 to 6).
- Its most recent inspection on record is dated May 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 → (44.10801, -92.44744)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 7 | 7 | Good condition |
| Superstructure | 7 | 6 | Satisfactory condition |
| Substructure | 7 | 7 | Good condition |
Bridge details
| Structure | Continuous steel stringer or multi-beam girder |
| Length | about 234 ft |
| Location | 3.5 Mi E of Jct Th 52 |
| NBI structure number | 55530 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | May 2024 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 8: foundations stable, scour above the top of the footing |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Minnesota department of transportation.
Busiest bridges in Olmsted County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US 52 over Stream | 2005 | 52,227 | Good |
| US 52 over Kings Run | 2005 | 52,227 | Fair |
| US 52 over Cascade Creek | 2004 | 46,000 | Good |
| US 52 over US 14(CIVIC Center Dr) | 2004 | 45,000 | Good |
| US 52 over US 14(CIVIC Center Dr) | 2004 | 42,317 | Good |
| US 52 over Cascade Creek | 2004 | 42,317 | Good |
All bridges nearby: Olmsted County, MN bridge conditions · every bridge in Olmsted County · Minnesota bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.