Audrain County Bridge Report Card
Audrain County scores 84 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.
Audrain County, Missouri
Audrain County has 315 bridges in the National Bridge Inventory, with 13 rated poor and 2 rated scour-critical. Its poor-condition share of 4.1% is at or below the 8.8% statewide average. Poor-condition bridges carry about 17,725 daily vehicle crossings.
Quote-Ready Local Facts
Copyable Facts for Reporters
BridgeLookup.com gives Audrain County a Bridge Condition Exposure Score of 84/100 (B). The county has 315 bridges in the National Bridge Inventory, including 13 in poor condition and 2 rated scour-critical. Poor-condition bridges carry about 17,725 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 | 4.1% | 8.3 |
| Poor-condition traffic exposure | 25 | 9.2% of measured traffic | 6.9 |
| Scour-critical bridge share | 20 | 0.6% | 1.3 |
| Average age vs national baseline | 10 | 38 years vs 48 nationally | 0.0 |
| Traffic-data completeness | 5 | 193,703 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 | 4.1% |
| State Poor-Condition Share | 8.8% |
| National Poor-Condition Share | 6.7% |
| County Scour-Critical Share | 0.6% |
| Average Bridge Age | 38 years |
| Poor-Condition Traffic Exposure | 17,725 vehicles/day |
Bridges to Watch
Top Bridges to Watch in Audrain County
| Bridge | Reason | Condition | Daily Traffic | Year Built |
|---|---|---|---|---|
| Mo 151 S over Goodwater Br | Poor condition + traffic exposure | Poor | 1,259 | 1930 |
| US 54 W over Beaver Dam CR | Poor condition + traffic exposure | Poor | 5,433 | 1927 |
| Mo 22 E over Saling Br | Poor condition + traffic exposure | Poor | 3,488 | 1930 |
| Mo 22 E over Kcs Rr | Poor condition + traffic exposure | Poor | 3,488 | 1936 |
| Mo 22 E over Youngs CR | Poor condition + traffic exposure | Poor | 3,002 | 1953 |
| Pollock RD over S Fk Of Salt Rvr | Poor condition + traffic exposure | Poor | 500 | 1966 |
| County RD 820 over S Fk Of Salt Rvr | Poor condition + traffic exposure | Poor | 150 | 1970 |
| County RD 524 over Hickory CR | Poor condition + traffic exposure | Poor | 100 | 1970 |
| County RD 448 over Mid Lick CR | Poor condition + traffic exposure | Poor | 75 | 1900 |
| County RD 609 over Johns CR | Poor condition + traffic exposure | Poor | 75 | 1979 |
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.