Hancock County Bridge Report Card
Hancock County scores 50 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.
Hancock County, Iowa
Hancock County has 135 bridges in the National Bridge Inventory, with 27 rated poor and 0 rated scour-critical. Its poor-condition share of 20.0% is above the 18.6% statewide average. Poor-condition bridges carry about 7,856 daily vehicle crossings.
Quote-Ready Local Facts
Copyable Facts for Reporters
BridgeLookup.com gives Hancock County a Bridge Condition Exposure Score of 50/100 (F). The county has 135 bridges in the National Bridge Inventory, including 27 in poor condition and 0 rated scour-critical. Poor-condition bridges carry about 7,856 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 | 20.0% | 40.0 |
| Poor-condition traffic exposure | 25 | 13.7% of measured traffic | 10.3 |
| Scour-critical bridge share | 20 | 0.0% | 0.0 |
| Average age vs national baseline | 10 | 44 years vs 48 nationally | 0.0 |
| Traffic-data completeness | 5 | 57,135 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 | 20.0% |
| State Poor-Condition Share | 18.6% |
| National Poor-Condition Share | 6.7% |
| County Scour-Critical Share | 0.0% |
| Average Bridge Age | 44 years |
| Poor-Condition Traffic Exposure | 7,856 vehicles/day |
Bridges to Watch
Top Bridges to Watch in Hancock County
| Bridge | Reason | Condition | Daily Traffic | Year Built |
|---|---|---|---|---|
| US 69 over Galls Creek | Poor condition + traffic exposure | Poor | 2,450 | 1930 |
| FM 1870 330th over Winnebago River | Poor condition + traffic exposure | Poor | 2,192 | 1963 |
| FM 2430 James over W Branch Iowa River | Poor condition + traffic exposure | Poor | 828 | 1948 |
| 1350 170th ST over West Iowa River | Poor condition + traffic exposure | Poor | 569 | 1979 |
| FM 2380 Deer Av over Drainage Ditch 97 | Poor condition + traffic exposure | Poor | 447 | 1968 |
| 1860 210th ST over East Iowa River | Poor condition + traffic exposure | Poor | 259 | 1967 |
| 1550 210th ST over Drainage Ditch 6 | Poor condition + traffic exposure | Poor | 259 | 1968 |
| FM 2030 Vail over Golls Creek | Poor condition + traffic exposure | Poor | 259 | 1969 |
| 1200 210th ST over West Iowa River | Poor condition + traffic exposure | Poor | 170 | 1961 |
| Loc 2030 210th over Golls Creek | Poor condition + traffic exposure | Poor | 62 | 1955 |
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.