Aitkin County Bridge Report Card
Aitkin County scores 80 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.
Aitkin County, Minnesota
Aitkin County has 96 bridges in the National Bridge Inventory, with 8 rated poor and 1 rated scour-critical. Its poor-condition share of 8.3% is above the 4.5% statewide average. Poor-condition bridges carry about 2,064 daily vehicle crossings.
Quote-Ready Local Facts
Copyable Facts for Reporters
BridgeLookup.com gives Aitkin County a Bridge Condition Exposure Score of 80/100 (B). The county has 96 bridges in the National Bridge Inventory, including 8 in poor condition and 1 rated scour-critical. Poor-condition bridges carry about 2,064 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 | 8.3% | 16.7 |
| Poor-condition traffic exposure | 25 | 1.9% of measured traffic | 1.5 |
| Scour-critical bridge share | 20 | 1.0% | 2.1 |
| Average age vs national baseline | 10 | 39 years vs 48 nationally | 0.0 |
| Traffic-data completeness | 5 | 106,223 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 | 8.3% |
| State Poor-Condition Share | 4.5% |
| National Poor-Condition Share | 6.7% |
| County Scour-Critical Share | 1.0% |
| Average Bridge Age | 39 years |
| Poor-Condition Traffic Exposure | 2,064 vehicles/day |
Bridges to Watch
Top Bridges to Watch in Aitkin County
| Bridge | Reason | Condition | Daily Traffic | Year Built |
|---|---|---|---|---|
| Csah 2 over Snake River | Poor condition + traffic exposure | Poor | 418 | 1958 |
| Csah 22 over Wakefield Brook | Poor condition + traffic exposure | Poor | 730 | 1960 |
| Mn 18 over Snake River | Poor condition + traffic exposure | Poor | 629 | 1955 |
| Csah 29 over Willow River | Poor condition + traffic exposure | Poor | 137 | 1979 |
| Csah 5 over Rice River | Poor condition + traffic exposure | Poor | 131 | 1969 |
| Spr 3 over Savanna River | Poor condition + traffic exposure | Poor | 10 | 1977 |
| T 64 over Ripple River | Poor condition + traffic exposure | Poor | 8 | 1979 |
| Spr 2 over Savanna River | Poor condition + traffic exposure | Poor | 1 | 1965 |
| Mn 210 over Ripple River | High traffic | Fair | 8,900 | 1980 |
| US 169 over Ripple River | High traffic | Fair | 8,300 | 1929 |
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.