Mississippi County Bridge Report Card
Mississippi County scores 70 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.
Mississippi County, Missouri
Mississippi County has 99 bridges in the National Bridge Inventory, with 10 rated poor and 1 rated scour-critical. Its poor-condition share of 10.1% is above the 8.8% statewide average. Poor-condition bridges carry about 8,361 daily vehicle crossings.
Quote-Ready Local Facts
Copyable Facts for Reporters
BridgeLookup.com gives Mississippi County a Bridge Condition Exposure Score of 70/100 (C). The county has 99 bridges in the National Bridge Inventory, including 10 in poor condition and 1 rated scour-critical. Poor-condition bridges carry about 8,361 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 | 10.1% | 20.2 |
| Poor-condition traffic exposure | 25 | 5.9% of measured traffic | 4.4 |
| Scour-critical bridge share | 20 | 1.0% | 2.0 |
| Average age vs national baseline | 10 | 56 years vs 48 nationally | 3.4 |
| Traffic-data completeness | 5 | 142,527 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 | 10.1% |
| State Poor-Condition Share | 8.8% |
| National Poor-Condition Share | 6.7% |
| County Scour-Critical Share | 1.0% |
| Average Bridge Age | 56 years |
| Poor-Condition Traffic Exposure | 8,361 vehicles/day |
Bridges to Watch
Top Bridges to Watch in Mississippi County
| Bridge | Reason | Condition | Daily Traffic | Year Built |
|---|---|---|---|---|
| County RD 319 over Drain Dtch No 29 | Poor condition + traffic exposure | Poor | 10 | 1965 |
| US 62 E over Is 57 | Poor condition + traffic exposure | Poor | 4,227 | 1972 |
| US 60 W over Mississippi Rvr | Poor condition + traffic exposure | Poor | 2,670 | 1929 |
| Mo 75 S over Drain Dtch #14 | Poor condition + traffic exposure | Poor | 690 | 1922 |
| Mo 80 E over Drain Dtch #23 | Poor condition + traffic exposure | Poor | 628 | 1922 |
| County RD 525 over ST James Drain Dtc | Poor condition + traffic exposure | Poor | 40 | 1955 |
| County RD 322 over Drain Dtch | Poor condition + traffic exposure | Poor | 35 | 1966 |
| RT Dd E over Drain Dtch #23 | Poor condition + traffic exposure | Poor | 28 | 1948 |
| RT Dd E over Drain Dtch #31 | Poor condition + traffic exposure | Poor | 28 | 1948 |
| County RD 314 over Drain Dtch No 29 | Poor condition + traffic exposure | Poor | 5 | 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.