Morrison County Bridge Report Card
Morrison County scores 85 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.
Morrison County, Minnesota
Morrison County has 164 bridges in the National Bridge Inventory, with 5 rated poor and 7 rated scour-critical. Its poor-condition share of 3.0% is at or below the 4.5% statewide average. Poor-condition bridges carry about 2,557 daily vehicle crossings.
Quote-Ready Local Facts
Copyable Facts for Reporters
BridgeLookup.com gives Morrison County a Bridge Condition Exposure Score of 85/100 (B). The county has 164 bridges in the National Bridge Inventory, including 5 in poor condition and 7 rated scour-critical. Poor-condition bridges carry about 2,557 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 | 3.0% | 6.1 |
| Poor-condition traffic exposure | 25 | 1.1% of measured traffic | 0.8 |
| Scour-critical bridge share | 20 | 4.3% | 8.5 |
| Average age vs national baseline | 10 | 36 years vs 48 nationally | 0.0 |
| Traffic-data completeness | 5 | 238,782 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 | 3.0% |
| State Poor-Condition Share | 4.5% |
| National Poor-Condition Share | 6.7% |
| County Scour-Critical Share | 4.3% |
| Average Bridge Age | 36 years |
| Poor-Condition Traffic Exposure | 2,557 vehicles/day |
Bridges to Watch
Top Bridges to Watch in Morrison County
| Bridge | Reason | Condition | Daily Traffic | Year Built |
|---|---|---|---|---|
| Csah 1 over Two Rivers | Poor condition + traffic exposure | Poor | 505 | 1965 |
| Csah 21 over S Br Two Rivers | Poor condition + traffic exposure | Poor | 1,050 | 1970 |
| CR 251 over Skunk River | Poor condition + traffic exposure | Poor | 566 | 1978 |
| Csah 35 over Platte River | Poor condition + traffic exposure | Poor | 330 | 1967 |
| CR 225 over Swan River | Poor condition + traffic exposure | Poor | 106 | 1966 |
| Csah 26 over Platte River | Scour-critical foundation rating | Fair | 2,350 | 1970 |
| Csah 52 over Swan River | Scour-critical foundation rating | Fair | 780 | 1978 |
| CR 252 over Skunk River | Scour-critical foundation rating | Fair | 766 | 1974 |
| Csah 36 over Skunk River | Scour-critical foundation rating | Fair | 353 | 1989 |
| T 1097 over Skunk River | Scour-critical foundation rating | Fair | 64 | 1994 |
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.