Davis County Bridge Report Card
Davis County scores 46 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.
Davis County, Iowa
Davis County has 163 bridges in the National Bridge Inventory, with 39 rated poor and 1 rated scour-critical. Its poor-condition share of 23.9% is above the 18.6% statewide average. Poor-condition bridges carry about 8,205 daily vehicle crossings.
Quote-Ready Local Facts
Copyable Facts for Reporters
BridgeLookup.com gives Davis County a Bridge Condition Exposure Score of 46/100 (F). The county has 163 bridges in the National Bridge Inventory, including 39 in poor condition and 1 rated scour-critical. Poor-condition bridges carry about 8,205 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 | 23.9% | 40.0 |
| Poor-condition traffic exposure | 25 | 16.9% of measured traffic | 12.7 |
| Scour-critical bridge share | 20 | 0.6% | 1.2 |
| Average age vs national baseline | 10 | 39 years vs 48 nationally | 0.0 |
| Traffic-data completeness | 5 | 48,530 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 | 23.9% |
| State Poor-Condition Share | 18.6% |
| National Poor-Condition Share | 6.7% |
| County Scour-Critical Share | 0.6% |
| Average Bridge Age | 39 years |
| Poor-Condition Traffic Exposure | 8,205 vehicles/day |
Bridges to Watch
Top Bridges to Watch in Davis County
| Bridge | Reason | Condition | Daily Traffic | Year Built |
|---|---|---|---|---|
| FM over Stream | Poor condition + traffic exposure | Poor | 480 | 1966 |
| FM over Fox River | Poor condition + traffic exposure | Poor | 1,260 | 1973 |
| FM over Creek | Poor condition + traffic exposure | Poor | 1,260 | 1973 |
| FM over Fox River | Poor condition + traffic exposure | Poor | 890 | 1962 |
| FM over Soap Creek | Poor condition + traffic exposure | Poor | 640 | 1956 |
| FM over S Wyacondah Ditch | Poor condition + traffic exposure | Poor | 480 | 1968 |
| FM over South Wyacondah Ditch | Poor condition + traffic exposure | Poor | 420 | 1974 |
| Local over Small Stream | Poor condition + traffic exposure | Poor | 369 | 1990 |
| FM over South Chequest Creek | Poor condition + traffic exposure | Poor | 310 | 1981 |
| FM over Carter Ck | Poor condition + traffic exposure | Poor | 290 | 1973 |
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.