Nobles County Bridge Report Card
Nobles County scores 89 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.
Nobles County, Minnesota
Nobles County has 306 bridges in the National Bridge Inventory, with 5 rated poor and 11 rated scour-critical. Its poor-condition share of 1.6% is at or below the 4.5% statewide average. Poor-condition bridges carry about 645 daily vehicle crossings.
Quote-Ready Local Facts
Copyable Facts for Reporters
BridgeLookup.com gives Nobles County a Bridge Condition Exposure Score of 89/100 (B). The county has 306 bridges in the National Bridge Inventory, including 5 in poor condition and 11 rated scour-critical. Poor-condition bridges carry about 645 daily vehicle crossings. Poor condition does not mean unsafe; bridges judged unsafe are closed or restricted by transportation agencies.
How the Score Breaks Down
| Factor | Weight | County Value | Penalty |
|---|---|---|---|
| Poor-condition bridge share | 40 | 1.6% | 3.3 |
| Poor-condition traffic exposure | 25 | 0.3% of measured traffic | 0.3 |
| Scour-critical bridge share | 20 | 3.6% | 7.2 |
| Average age vs national baseline | 10 | 42 years vs 48 nationally | 0.0 |
| Traffic-data completeness | 5 | 184,983 measured daily crossings | 0.0 |
Score = 100 minus weighted penalties. The score is a comparative research signal, not an official safety rating. Read the full methodology.
County Comparisons
| County Poor-Condition Share | 1.6% |
| State Poor-Condition Share | 4.5% |
| National Poor-Condition Share | 6.7% |
| County Scour-Critical Share | 3.6% |
| Average Bridge Age | 42 years |
| Poor-Condition Traffic Exposure | 645 vehicles/day |
Bridges to Watch
Top Bridges to Watch in Nobles County
| Bridge | Reason | Condition | Daily Traffic | Year Built |
|---|---|---|---|---|
| Csah 3 over Elk Creek | Poor condition + traffic exposure | Poor | 185 | 1966 |
| Csah 9 over Stream | Poor condition + traffic exposure | Poor | 330 | 1950 |
| CR 54 over Stream | Poor condition + traffic exposure | Poor | 80 | 1952 |
| T 144 over Ditch | Poor condition + traffic exposure | Poor | 49 | 1970 |
| Service RD over Kanaranzi Creek | Poor condition + traffic exposure | Poor | 1 | 1915 |
| Csah 19 over Elk Creek | Scour-critical foundation rating | Fair | 500 | 1965 |
| Csah 19 over Br Elk Crk | Scour-critical foundation rating | Fair | 500 | 1965 |
| Csah 19 over Stream | Scour-critical foundation rating | Fair | 500 | 1965 |
| Csah 16 over Champepadan Creek | Scour-critical foundation rating | Good | 325 | 1977 |
| Csah 6 over Little Rock River | Scour-critical foundation rating | Good | 295 | 1930 |
Important safety note
Poor condition does not mean a bridge is unsafe. It means at least one major component has significant deterioration and the bridge is a priority for maintenance, repair, or replacement. Bridges judged unsafe are closed or restricted by transportation agencies.