Bridge conditions in Olmsted County, Minnesota
367 inventoried bridges · 5 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
5 of the 367 bridges the federal inventory lists in Olmsted County are rated poor; the rest split 235 good and 127 fair.
- 5 of the 367 bridges in Olmsted County, Minnesota, are rated in poor condition (1.4%) in the 2025 National Bridge Inventory, as of .
- 235 bridges (64.0%) are rated good and 127 (34.6%) fair.
- The median Olmsted County bridge was built in 1990.
- The busiest poor-rated bridge is Msas 135 over Elton Hills Ravine (built 1977), carrying about 3,650 vehicles a day.
Good 64.0% · Fair 34.6% · Poor 1.4% of 367 bridges
Bridges rated poor
Every bridge in the county with a poor rating, busiest first. Poor means a major component is rated 4 or lower on FHWA's 0-9 scale; it is a repair flag, not a closure notice.
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Msas 135 over Elton Hills Ravine | 1977 | 3,650 | Poor |
| Mn 247 over Silver Spring Creek | 1938 | 3,100 | Poor |
| Csah 3 over Mid Fk Zumbro River | 1959 | 3,000 | Poor |
| Csah 7 over Stream | 1968 | 870 | Poor |
| Service Rd over South Fork Zumbro River | 1895 | 75 | Poor |
Busiest bridges in the 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 |
| US 52 over Dme RR;7TH St | 2004 | 42,269 | Good |
| US 52 over Dme RR; 7TH St NW | 2004 | 42,269 | Good |
| US 63 over Stream | 1958 | 32,996 | Fair |
| US 52 over Stream | 2007 | 30,208 | Good |
Source: FHWA National Bridge Inventory, 2025. Counts cover inventoried highway bridges over 20 feet; ratings are reported by the state DOT.
All of Minnesota: Minnesota bridge conditions by county · every download on the data page.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.