Oregon County Bridge Report Card
Oregon County scores 68 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.
Oregon County, Missouri
Oregon County has 84 bridges in the National Bridge Inventory, with 7 rated poor and 1 rated scour-critical. Its poor-condition share of 8.3% is at or below the 8.8% statewide average. Poor-condition bridges carry about 4,503 daily vehicle crossings.
Quote-Ready Local Facts
Copyable Facts for Reporters
BridgeLookup.com gives Oregon County a Bridge Condition Exposure Score of 68/100 (D). The county has 84 bridges in the National Bridge Inventory, including 7 in poor condition and 1 rated scour-critical. Poor-condition bridges carry about 4,503 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 | 6.3% of measured traffic | 4.7 |
| Scour-critical bridge share | 20 | 1.2% | 2.4 |
| Average age vs national baseline | 10 | 69 years vs 48 nationally | 8.4 |
| Traffic-data completeness | 5 | 71,532 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 | 8.8% |
| National Poor-Condition Share | 6.7% |
| County Scour-Critical Share | 1.2% |
| Average Bridge Age | 69 years |
| Poor-Condition Traffic Exposure | 4,503 vehicles/day |
Bridges to Watch
Top Bridges to Watch in Oregon County
| Bridge | Reason | Condition | Daily Traffic | Year Built |
|---|---|---|---|---|
| US 160 E over Cox CR | Poor condition + traffic exposure | Poor | 1,346 | 1925 |
| US 160 E over Dry CR | Poor condition + traffic exposure | Poor | 1,114 | 1925 |
| Walnut ST E over Spring Rvr Bnsf Rr | Poor condition + traffic exposure | Poor | 721 | 1966 |
| Mo 19 S over Eleven Point Rvr | Poor condition + traffic exposure | Poor | 687 | 1934 |
| Mo 142 E over Eleven Point Rvr | Poor condition + traffic exposure | Poor | 441 | 1957 |
| US 160 E over Eleven Point Rvr | Poor condition + traffic exposure | Poor | 154 | 1933 |
| County RD 286 over Colvin CR | Poor condition + traffic exposure | Poor | 40 | 1983 |
| US 160 E over Piney CR | Scour-critical foundation rating | Fair | 1,346 | 1925 |
| US 63 S over Warm Fork Bnsf Rr | High traffic | Fair | 11,830 | 1966 |
| US 63 S over Warm Fork | High traffic | Fair | 8,005 | 1966 |
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.