Putnam County Bridge Report Card
Putnam County scores 65 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.
Putnam County, Missouri
Putnam County has 214 bridges in the National Bridge Inventory, with 32 rated poor and 4 rated scour-critical. Its poor-condition share of 15.0% is above the 8.8% statewide average. Poor-condition bridges carry about 495 daily vehicle crossings.
Quote-Ready Local Facts
Copyable Facts for Reporters
BridgeLookup.com gives Putnam County a Bridge Condition Exposure Score of 65/100 (D). The county has 214 bridges in the National Bridge Inventory, including 32 in poor condition and 4 rated scour-critical. Poor-condition bridges carry about 495 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 | 15.0% | 29.9 |
| Poor-condition traffic exposure | 25 | 2.1% of measured traffic | 1.6 |
| Scour-critical bridge share | 20 | 1.9% | 3.7 |
| Average age vs national baseline | 10 | 39 years vs 48 nationally | 0.0 |
| Traffic-data completeness | 5 | 23,725 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 | 15.0% |
| State Poor-Condition Share | 8.8% |
| National Poor-Condition Share | 6.7% |
| County Scour-Critical Share | 1.9% |
| Average Bridge Age | 39 years |
| Poor-Condition Traffic Exposure | 495 vehicles/day |
Bridges to Watch
Top Bridges to Watch in Putnam County
| Bridge | Reason | Condition | Daily Traffic | Year Built |
|---|---|---|---|---|
| 204th RD over Branch | Poor condition + traffic exposure | Poor | 10 | 1920 |
| 160th ST over Elm CR | Poor condition + traffic exposure | Poor | 5 | 1920 |
| RT Ff S over Shoal CR | Poor condition + traffic exposure | Poor | 74 | 1955 |
| RT N S over Turkey CR | Poor condition + traffic exposure | Poor | 56 | 1951 |
| Olive Trail over Blackbird CR | Poor condition + traffic exposure | Poor | 40 | 1996 |
| 415th RD over Br Shoal CR | Poor condition + traffic exposure | Poor | 30 | 2008 |
| Geyer Trail over Watkins CR | Poor condition + traffic exposure | Poor | 25 | 1930 |
| Cottonwood Trail over Sandy CR | Poor condition + traffic exposure | Poor | 25 | 1991 |
| 190th ST over Br Of W Locust CR | Poor condition + traffic exposure | Poor | 25 | 1991 |
| 210th ST over Blackbird CR | Poor condition + traffic exposure | Poor | 25 | 2000 |
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.