Washington County Bridge Report Card
Washington County scores 91 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.
Washington County, Minnesota
Washington County has 113 bridges in the National Bridge Inventory, with 4 rated poor and 1 rated scour-critical. Its poor-condition share of 3.5% is at or below the 4.5% statewide average. Poor-condition bridges carry about 6,054 daily vehicle crossings.
Quote-Ready Local Facts
Copyable Facts for Reporters
BridgeLookup.com gives Washington County a Bridge Condition Exposure Score of 91/100 (A). The county has 113 bridges in the National Bridge Inventory, including 4 in poor condition and 1 rated scour-critical. Poor-condition bridges carry about 6,054 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 | 3.5% | 7.1 |
| Poor-condition traffic exposure | 25 | 0.3% of measured traffic | 0.3 |
| Scour-critical bridge share | 20 | 0.9% | 1.8 |
| Average age vs national baseline | 10 | 35 years vs 48 nationally | 0.0 |
| Traffic-data completeness | 5 | 1,799,315 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 | 3.5% |
| State Poor-Condition Share | 4.5% |
| National Poor-Condition Share | 6.7% |
| County Scour-Critical Share | 0.9% |
| Average Bridge Age | 35 years |
| Poor-Condition Traffic Exposure | 6,054 vehicles/day |
Bridges to Watch
Top Bridges to Watch in Washington County
| Bridge | Reason | Condition | Daily Traffic | Year Built |
|---|---|---|---|---|
| Csah 5 over Mz Ltd; Browns Creek | Poor condition + traffic exposure | Poor | 5,200 | 1967 |
| M 232 over Clearwater Creek | Poor condition + traffic exposure | Poor | 525 | 2004 |
| M 26 over Valley Creek | Poor condition + traffic exposure | Poor | 268 | 1924 |
| M 62 over Hardwood Creek | Poor condition + traffic exposure | Poor | 61 | 1920 |
| Spr 12 over Trout Brook (tributary) | Scour-critical foundation rating | Fair | 1 | 1980 |
| I 494 over Mississippi R; Up Rr | High traffic | Fair | 51,236 | 2003 |
| I 494 over Mississippi R; Up Rr | High traffic | Good | 51,236 | 2008 |
| I 694 over I 94; Collector Roads | High traffic | Good | 45,534 | 2020 |
| I 494 over Csah 25 (century Ave) | High traffic | Fair | 45,500 | 1960 |
| I 694 over I 94; Collector Roads | High traffic | Good | 43,894 | 2019 |
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.