Jones County Bridge Report Card
Jones County scores 89 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.
Jones County, Iowa
Jones County has 230 bridges in the National Bridge Inventory, with 11 rated poor and 1 rated scour-critical. Its poor-condition share of 4.8% is at or below the 18.6% statewide average. Poor-condition bridges carry about 1,990 daily vehicle crossings.
Quote-Ready Local Facts
Copyable Facts for Reporters
BridgeLookup.com gives Jones County a Bridge Condition Exposure Score of 89/100 (B). The county has 230 bridges in the National Bridge Inventory, including 11 in poor condition and 1 rated scour-critical. Poor-condition bridges carry about 1,990 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 | 4.8% | 9.6 |
| Poor-condition traffic exposure | 25 | 0.9% of measured traffic | 0.7 |
| Scour-critical bridge share | 20 | 0.4% | 0.9 |
| Average age vs national baseline | 10 | 44 years vs 48 nationally | 0.0 |
| Traffic-data completeness | 5 | 213,502 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 | 4.8% |
| State Poor-Condition Share | 18.6% |
| National Poor-Condition Share | 6.7% |
| County Scour-Critical Share | 0.4% |
| Average Bridge Age | 44 years |
| Poor-Condition Traffic Exposure | 1,990 vehicles/day |
Bridges to Watch
Top Bridges to Watch in Jones County
| Bridge | Reason | Condition | Daily Traffic | Year Built |
|---|---|---|---|---|
| County RD X-31 over Mino Creek | Poor condition + traffic exposure | Poor | 520 | 1966 |
| County RD X-64 over Overflow | Poor condition + traffic exposure | Poor | 393 | 1950 |
| Stone City Rd. over Crow Creek | Poor condition + traffic exposure | Poor | 295 | 1975 |
| Stone Bridge RD over Wet Creek | Poor condition + traffic exposure | Poor | 294 | 1893 |
| 150th Ave. over Small Creek | Poor condition + traffic exposure | Poor | 242 | 1959 |
| Landis RD over Wapsipinicon River | Poor condition + traffic exposure | Poor | 78 | 1909 |
| Newport Rd. over Small Creek | Poor condition + traffic exposure | Poor | 62 | 1945 |
| 200th Ave. over Small Creek | Poor condition + traffic exposure | Poor | 51 | 1967 |
| Ebys Mill RD over Small Creek | Poor condition + traffic exposure | Poor | 44 | 1964 |
| 25th AVE over Loss Creek | Poor condition + traffic exposure | Poor | 11 | 1967 |
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.