Dallas County Bridge Report Card
Dallas County scores 72 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.
Dallas County, Missouri
Dallas County has 114 bridges in the National Bridge Inventory, with 11 rated poor and 2 rated scour-critical. Its poor-condition share of 9.6% is above the 8.8% statewide average. Poor-condition bridges carry about 5,409 daily vehicle crossings.
Quote-Ready Local Facts
Copyable Facts for Reporters
BridgeLookup.com gives Dallas County a Bridge Condition Exposure Score of 72/100 (C). The county has 114 bridges in the National Bridge Inventory, including 11 in poor condition and 2 rated scour-critical. Poor-condition bridges carry about 5,409 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 | 9.6% | 19.3 |
| Poor-condition traffic exposure | 25 | 5.3% of measured traffic | 3.9 |
| Scour-critical bridge share | 20 | 1.8% | 3.5 |
| Average age vs national baseline | 10 | 52 years vs 48 nationally | 1.7 |
| Traffic-data completeness | 5 | 102,910 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 | 9.6% |
| State Poor-Condition Share | 8.8% |
| National Poor-Condition Share | 6.7% |
| County Scour-Critical Share | 1.8% |
| Average Bridge Age | 52 years |
| Poor-Condition Traffic Exposure | 5,409 vehicles/day |
Bridges to Watch
Top Bridges to Watch in Dallas County
| Bridge | Reason | Condition | Daily Traffic | Year Built |
|---|---|---|---|---|
| Park Access RD over Bennett Spr Br | Poor condition + traffic exposure | Poor | 1,000 | 1900 |
| Federal RD over Br Of Niangua Rvr | Poor condition + traffic exposure | Poor | 10 | 1900 |
| Mo 73 S over Little Niangua CR | Poor condition + traffic exposure | Poor | 2,052 | 1925 |
| Mo 64 E over Niangua Rvr | Poor condition + traffic exposure | Poor | 976 | 1931 |
| RT D E over Thomas CR | Poor condition + traffic exposure | Poor | 641 | 1974 |
| RT C E over Lindley CR | Poor condition + traffic exposure | Poor | 495 | 1961 |
| E Main ST over Greasy CR | Poor condition + traffic exposure | Poor | 100 | 1949 |
| Neill RD over Lindley CR | Poor condition + traffic exposure | Poor | 50 | 2002 |
| Springfield RD over Greasy CR | Poor condition + traffic exposure | Poor | 30 | 1900 |
| Pony DR over Br Of Lindley CR | Poor condition + traffic exposure | Poor | 30 | 1900 |
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.