Clay County Bridge Report Card
Clay County scores 81 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.
Clay County, Missouri
Clay County has 444 bridges in the National Bridge Inventory, with 32 rated poor and 6 rated scour-critical. Its poor-condition share of 7.2% is at or below the 8.8% statewide average. Poor-condition bridges carry about 142,402 daily vehicle crossings.
Quote-Ready Local Facts
Copyable Facts for Reporters
BridgeLookup.com gives Clay County a Bridge Condition Exposure Score of 81/100 (B). The county has 444 bridges in the National Bridge Inventory, including 32 in poor condition and 6 rated scour-critical. Poor-condition bridges carry about 142,402 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 | 7.2% | 14.4 |
| Poor-condition traffic exposure | 25 | 2.7% of measured traffic | 2.0 |
| Scour-critical bridge share | 20 | 1.4% | 2.7 |
| Average age vs national baseline | 10 | 46 years vs 48 nationally | 0.0 |
| Traffic-data completeness | 5 | 5,236,122 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 | 7.2% |
| State Poor-Condition Share | 8.8% |
| National Poor-Condition Share | 6.7% |
| County Scour-Critical Share | 1.4% |
| Average Bridge Age | 46 years |
| Poor-Condition Traffic Exposure | 142,402 vehicles/day |
Bridges to Watch
Top Bridges to Watch in Clay County
| Bridge | Reason | Condition | Daily Traffic | Year Built |
|---|---|---|---|---|
| Richfield RD over Rush CR | Poor condition + traffic exposure | Poor | 900 | 1920 |
| Garland AVE over Dry Fk Fishing Rvr | Poor condition + traffic exposure | Poor | 450 | 1917 |
| Old 210 HWY over Rush CR | Poor condition + traffic exposure | Poor | 267 | 1946 |
| 178th ST over New Hope CR | Poor condition + traffic exposure | Poor | 216 | 1955 |
| Is 29 N over Rp Us169s To Is29s US 1 | Poor condition + traffic exposure | Poor | 57,469 | 1957 |
| Is 435 S over Fk Of Wilkerson CR | Poor condition + traffic exposure | Poor | 24,752 | 1983 |
| US 169 N over Bnsf Rr | Poor condition + traffic exposure | Poor | 21,563 | 1956 |
| Rp Is35s To Is435s over Is 35 | Poor condition + traffic exposure | Poor | 16,197 | 1969 |
| Mo 33 S over CR | Poor condition + traffic exposure | Poor | 6,459 | 1927 |
| Antioch RD over Rock CR | Poor condition + traffic exposure | Poor | 3,371 | 1920 |
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.