Cedar County Bridge Report Card
Cedar County scores 53 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.
Cedar County, Iowa
Cedar County has 300 bridges in the National Bridge Inventory, with 60 rated poor and 8 rated scour-critical. Its poor-condition share of 20.0% is above the 18.6% statewide average. Poor-condition bridges carry about 12,374 daily vehicle crossings.
Quote-Ready Local Facts
Copyable Facts for Reporters
BridgeLookup.com gives Cedar County a Bridge Condition Exposure Score of 53/100 (F). The county has 300 bridges in the National Bridge Inventory, including 60 in poor condition and 8 rated scour-critical. Poor-condition bridges carry about 12,374 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 | 2.7% of measured traffic | 2.1 |
| Scour-critical bridge share | 20 | 2.7% | 5.3 |
| Average age vs national baseline | 10 | 42 years vs 48 nationally | 0.0 |
| Traffic-data completeness | 5 | 451,453 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 | 2.7% |
| Average Bridge Age | 42 years |
| Poor-Condition Traffic Exposure | 12,374 vehicles/day |
Bridges to Watch
Top Bridges to Watch in Cedar County
| Bridge | Reason | Condition | Daily Traffic | Year Built |
|---|---|---|---|---|
| Quincy AVE over Br Mill CR | Poor condition + traffic exposure | Poor | 50 | 1925 |
| Stone Mill RD over Rock Run Creek | Poor condition + traffic exposure | Poor | 50 | 1974 |
| Local over W Br Wapsinonoc Creek | Poor condition + traffic exposure | Poor | 35 | 1979 |
| Grant AVE over Pioneer Creek | Poor condition + traffic exposure | Poor | 34 | 1976 |
| Local over Rock Creek | Poor condition + traffic exposure | Poor | 30 | 1915 |
| 205th ST over Rock CR | Poor condition + traffic exposure | Poor | 15 | 1917 |
| FM over Cedar River | Poor condition + traffic exposure | Poor | 1,860 | 1966 |
| FM over Rock Creek | Poor condition + traffic exposure | Poor | 1,660 | 1967 |
| FM over Rock Creek | Poor condition + traffic exposure | Poor | 1,350 | 1959 |
| FM over Cedar River | Poor condition + traffic exposure | Poor | 950 | 1971 |
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.