Franklin County Bridge Report Card
Franklin County scores 88 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.
Franklin County, Missouri
Franklin County has 329 bridges in the National Bridge Inventory, with 13 rated poor and 2 rated scour-critical. Its poor-condition share of 4.0% is at or below the 8.8% statewide average. Poor-condition bridges carry about 54,806 daily vehicle crossings.
Quote-Ready Local Facts
Copyable Facts for Reporters
BridgeLookup.com gives Franklin County a Bridge Condition Exposure Score of 88/100 (B). The county has 329 bridges in the National Bridge Inventory, including 13 in poor condition and 2 rated scour-critical. Poor-condition bridges carry about 54,806 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 | 4.0% | 7.9 |
| Poor-condition traffic exposure | 25 | 4.5% of measured traffic | 3.4 |
| Scour-critical bridge share | 20 | 0.6% | 1.2 |
| Average age vs national baseline | 10 | 37 years vs 48 nationally | 0.0 |
| Traffic-data completeness | 5 | 1,226,707 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 | 4.0% |
| State Poor-Condition Share | 8.8% |
| National Poor-Condition Share | 6.7% |
| County Scour-Critical Share | 0.6% |
| Average Bridge Age | 37 years |
| Poor-Condition Traffic Exposure | 54,806 vehicles/day |
Bridges to Watch
Top Bridges to Watch in Franklin County
| Bridge | Reason | Condition | Daily Traffic | Year Built |
|---|---|---|---|---|
| Is 44 E over Br Of Bourbeuse Rv | Poor condition + traffic exposure | Poor | 36,909 | 1949 |
| RT D S over Is 44 | Poor condition + traffic exposure | Poor | 9,463 | 1969 |
| RT Mm S over Labadie CR | Poor condition + traffic exposure | Poor | 2,879 | 1950 |
| RT Oo S over Lit Fox CR | Poor condition + traffic exposure | Poor | 2,453 | 1957 |
| Old State RD over Jordan Br Of ST Jo | Poor condition + traffic exposure | Poor | 1,250 | 1997 |
| Old HWY 100 over Dubois CR | Poor condition + traffic exposure | Poor | 1,000 | 1939 |
| RT Vv S over Rohlfing CR | Poor condition + traffic exposure | Poor | 177 | 1959 |
| Schuchart RD over Birch CR | Poor condition + traffic exposure | Poor | 150 | 1920 |
| Calvey CR RD over Brady CR | Poor condition + traffic exposure | Poor | 150 | 1955 |
| Kiel-lyon RD over Br Of Bucklick CR | Poor condition + traffic exposure | Poor | 150 | 1960 |
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.