Chickasaw County Bridge Report Card
Chickasaw County scores 45 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.
Chickasaw County, Iowa
Chickasaw County has 304 bridges in the National Bridge Inventory, with 80 rated poor and 10 rated scour-critical. Its poor-condition share of 26.3% is above the 18.6% statewide average. Poor-condition bridges carry about 15,006 daily vehicle crossings.
Quote-Ready Local Facts
Copyable Facts for Reporters
BridgeLookup.com gives Chickasaw County a Bridge Condition Exposure Score of 45/100 (F). The county has 304 bridges in the National Bridge Inventory, including 80 in poor condition and 10 rated scour-critical. Poor-condition bridges carry about 15,006 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 | 26.3% | 40.0 |
| Poor-condition traffic exposure | 25 | 11.2% of measured traffic | 8.4 |
| Scour-critical bridge share | 20 | 3.3% | 6.6 |
| Average age vs national baseline | 10 | 38 years vs 48 nationally | 0.0 |
| Traffic-data completeness | 5 | 133,952 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 | 26.3% |
| State Poor-Condition Share | 18.6% |
| National Poor-Condition Share | 6.7% |
| County Scour-Critical Share | 3.3% |
| Average Bridge Age | 38 years |
| Poor-Condition Traffic Exposure | 15,006 vehicles/day |
Bridges to Watch
Top Bridges to Watch in Chickasaw County
| Bridge | Reason | Condition | Daily Traffic | Year Built |
|---|---|---|---|---|
| FM over Little Cedar | Poor condition + traffic exposure | Poor | 196 | 1965 |
| FM over Crane Creek | Poor condition + traffic exposure | Poor | 157 | 1959 |
| Local over Creek | Poor condition + traffic exposure | Poor | 47 | 1975 |
| Local over Little Wapsipinicon Rvr | Poor condition + traffic exposure | Poor | 30 | 1952 |
| Local over Plum Creek | Poor condition + traffic exposure | Poor | 16 | 1948 |
| Local over Spring Branch Creek | Poor condition + traffic exposure | Poor | 15 | 1981 |
| Local over Small Stream | Poor condition + traffic exposure | Poor | 11 | 1982 |
| Local over Spring Branch Creek | Poor condition + traffic exposure | Poor | 5 | 1980 |
| Local RD over Drainage Ditch | Poor condition + traffic exposure | Poor | 2,642 | 1953 |
| Local RD over Drainage Ditch | Poor condition + traffic exposure | Poor | 2,396 | 1954 |
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.