Mower County Bridge Report Card
Mower County scores 74 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.
Mower County, Minnesota
Mower County has 343 bridges in the National Bridge Inventory, with 28 rated poor and 2 rated scour-critical. Its poor-condition share of 8.2% is above the 4.5% statewide average. Poor-condition bridges carry about 40,402 daily vehicle crossings.
Quote-Ready Local Facts
Copyable Facts for Reporters
BridgeLookup.com gives Mower County a Bridge Condition Exposure Score of 74/100 (C). The county has 343 bridges in the National Bridge Inventory, including 28 in poor condition and 2 rated scour-critical. Poor-condition bridges carry about 40,402 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 | 8.2% | 16.3 |
| Poor-condition traffic exposure | 25 | 10.8% of measured traffic | 8.1 |
| Scour-critical bridge share | 20 | 0.6% | 1.2 |
| Average age vs national baseline | 10 | 37 years vs 48 nationally | 0.0 |
| Traffic-data completeness | 5 | 375,808 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 | 8.2% |
| State Poor-Condition Share | 4.5% |
| National Poor-Condition Share | 6.7% |
| County Scour-Critical Share | 0.6% |
| Average Bridge Age | 37 years |
| Poor-Condition Traffic Exposure | 40,402 vehicles/day |
Bridges to Watch
Top Bridges to Watch in Mower County
| Bridge | Reason | Condition | Daily Traffic | Year Built |
|---|---|---|---|---|
| I 90 over Rose Creek | Poor condition + traffic exposure | Poor | 13,166 | 1959 |
| I 90 over N Fk Bear Creek | Poor condition + traffic exposure | Poor | 10,728 | 1961 |
| US 218 over I 90 | Poor condition + traffic exposure | Poor | 3,900 | 1959 |
| Msas 134 over Dobbins Creek | Poor condition + traffic exposure | Poor | 3,700 | 1932 |
| Csah 14 over Upper Iowa River | Poor condition + traffic exposure | Poor | 1,400 | 1955 |
| Mn 56 over Stream | Poor condition + traffic exposure | Poor | 1,357 | 1940 |
| Csah 7 over Little Cedar River | Poor condition + traffic exposure | Poor | 1,300 | 1975 |
| Csah 28 over Cedar River | Poor condition + traffic exposure | Poor | 960 | 1959 |
| Csah 25 over Cedar River | Poor condition + traffic exposure | Poor | 949 | 1968 |
| Csah 4 over Rose Creek | Poor condition + traffic exposure | Poor | 560 | 1973 |
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.