Cook County Bridge Report Card
Cook County scores 83 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.
Cook County, Minnesota
Cook County has 59 bridges in the National Bridge Inventory, with 4 rated poor and 1 rated scour-critical. Its poor-condition share of 6.8% is above the 4.5% statewide average. Poor-condition bridges carry about 269 daily vehicle crossings.
Quote-Ready Local Facts
Copyable Facts for Reporters
BridgeLookup.com gives Cook County a Bridge Condition Exposure Score of 83/100 (B). The county has 59 bridges in the National Bridge Inventory, including 4 in poor condition and 1 rated scour-critical. Poor-condition bridges carry about 269 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 | 6.8% | 13.6 |
| Poor-condition traffic exposure | 25 | 0.5% of measured traffic | 0.4 |
| Scour-critical bridge share | 20 | 1.7% | 3.4 |
| Average age vs national baseline | 10 | 37 years vs 48 nationally | 0.0 |
| Traffic-data completeness | 5 | 49,680 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 | 6.8% |
| State Poor-Condition Share | 4.5% |
| National Poor-Condition Share | 6.7% |
| County Scour-Critical Share | 1.7% |
| Average Bridge Age | 37 years |
| Poor-Condition Traffic Exposure | 269 vehicles/day |
Bridges to Watch
Top Bridges to Watch in Cook County
| Bridge | Reason | Condition | Daily Traffic | Year Built |
|---|---|---|---|---|
| Csah 2 over Temperance River | Poor condition + traffic exposure | Poor | 168 | 1961 |
| Pancore Lake Road over Poplar River | Poor condition + traffic exposure | Poor | 50 | 1982 |
| Ut 74 over Pine River | Poor condition + traffic exposure | Poor | 35 | 1960 |
| Twin Lakes Road over South Brule River | Poor condition + traffic exposure | Poor | 16 | 1957 |
| Mn 61 over Pigeon River | Scour-critical foundation rating | Fair | 1,198 | 1962 |
| Mn 61 over Poplar River | High traffic | Fair | 3,650 | 1931 |
| Mn 61 over Cascade River | High traffic | Fair | 3,650 | 1932 |
| Mn 61 over Onion River | High traffic | Fair | 3,650 | 2009 |
| Mn 61 over Cutface Creek | High traffic | Fair | 3,650 | 2015 |
| Mn 61 over Temperance River | High traffic | Fair | 3,000 | 1931 |
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.