Bridge conditions in Cedar County, Iowa
300 inventoried bridges · 60 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
About one in 5 bridges in Cedar County is rated in poor condition: 60 of 300 on the federal inventory, one of the higher shares in Iowa.
- 60 of the 300 bridges in Cedar County, Iowa, are rated in poor condition (20.0%) in the 2025 National Bridge Inventory, as of .
- 131 bridges (43.7%) are rated good and 109 (36.3%) fair.
- The median Cedar County bridge was built in 1992.
- The busiest poor-rated bridge is FM over Cedar River (built 1966), carrying about 1,860 vehicles a day.
Good 43.7% · Fair 36.3% · Poor 20.0% of 300 bridges
Bridges rated poor
Every bridge in the county with a poor rating, busiest first. Poor means a major component is rated 4 or lower on FHWA's 0-9 scale; it is a repair flag, not a closure notice.
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| FM over Cedar River | 1966 | 1,860 | Poor |
| FM over Rock Creek | 1967 | 1,660 | Poor |
| FM over Rock Creek | 1959 | 1,350 | Poor |
| FM over Cedar River | 1971 | 950 | Poor |
| FM over Nicholson Creek | 1960 | 836 | Poor |
| FM over Yankee Run Creek | 1957 | 740 | Poor |
| F44 290TH St over Cedar River | 1948 | 620 | Poor |
| FM over Mill Creek | 1956 | 550 | Poor |
| FM over Mill Creek | 1958 | 550 | Poor |
| FM over Wapsipinicon River | 1969 | 520 | Poor |
| FM over Yankee Run | 1940 | 330 | Poor |
| 5TH St over Drainage | 1940 | 232 | Poor |
| FM over Crooked Creek | 1923 | 230 | Poor |
| FM over Rock Creek | 1945 | 170 | Poor |
| FM over Pedee Creek | 1965 | 110 | Poor |
| FM over Small | 1980 | 110 | Poor |
| Muscatine Rd over Sugar Creek | 1935 | 100 | Poor |
| 320TH St over E Br Wapsinonoc CR | 1975 | 90 | Poor |
| 155TH St over Yankee Run | 1995 | 90 | Poor |
| Cemetary Rd over Cedar River | 1930 | 72 | Poor |
| 230TH St over Stream | 1950 | 71 | Poor |
| Local Rd over Clear Creek | 1946 | 71 | Poor |
| Adams Ave over Stream | 1923 | 60 | Poor |
| FM over Rock Creek | 1958 | 60 | Poor |
| Local over Small | 1979 | 51 | Poor |
| Green Rd over Rock Run CR | 1920 | 50 | Poor |
| Stone Mill Rd over Rock Run Creek | 1974 | 50 | Poor |
| King Ave over Rock CR | 1946 | 50 | Poor |
| 240TH St over Br Gower CR | 1924 | 50 | Poor |
| Quincy Ave over Br Mill CR | 1925 | 50 | Poor |
| 180TH St over Sugar Creek | 1976 | 45 | Poor |
| 255TH St over Crooked Creek | 1965 | 40 | Poor |
| FM over Elkhorn Creek (little) | 1915 | 35 | Poor |
| Charles Ave over W Br Wapsinonoc CR | 1925 | 35 | Poor |
| Local over W Br Wapsinonoc Creek | 1979 | 35 | Poor |
| Grant Ave over Pioneer Creek | 1976 | 34 | Poor |
| Local over Rock Creek | 1915 | 30 | Poor |
| 280TH St over Middle Br Wapsinonoc CR | 1950 | 26 | Poor |
| Hayes Ave over Rock Run Creek | 1930 | 26 | Poor |
| Hayes Ave over Br Rock Run CR | 1900 | 26 | Poor |
| Eureka Ave over Middle Br Wapsinonoc CR | 1895 | 20 | Poor |
| 320TH St over Middle Br Wapsinonoc CR | 1930 | 20 | Poor |
| Spicer Ave over Stream | 1915 | 20 | Poor |
| FM over East Sugar Creek | 1914 | 20 | Poor |
| 270TH St over Crooked CR | 1930 | 20 | Poor |
| 130TH St over Mill CR | 1930 | 20 | Poor |
| Indian Ave over Pioneer Creek | 1976 | 20 | Poor |
| Local over Crooked Creek | 1935 | 15 | Poor |
| Newton Ave over Crooked CR | 1974 | 15 | Poor |
| Rose Ave over Small | 1979 | 15 | Poor |
| Grant Ave over Small | 1976 | 15 | Poor |
| 205TH St over Rock CR | 1917 | 15 | Poor |
| Yankee Ave over Plum Creek | 1976 | 15 | Poor |
| 150TH St over Br Rock CR | 1920 | 15 | Poor |
| Local over Small Stream | 1991 | 15 | Poor |
| 330TH St over Stream | 1930 | 11 | Poor |
| Indian Ave over W Rock CR | 1918 | 11 | Poor |
| Cedar\jones Rd over Small | 1980 | 11 | Poor |
| Cedar\jones Rd over Br Pioneer CR | 1992 | 11 | Poor |
| Eureka Ave over Middle Br Wapsininoc CR | 1904 | 5 | Poor |
Busiest bridges in the county
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I-80 over Stream | 1960 | 39,700 | Fair |
| I-80 over Stream | 1960 | 39,700 | Fair |
| I-80 over Middle Wapsinonoc Creek | 1960 | 39,700 | Fair |
| I-80 over Drainage Ditch | 1959 | 36,000 | Fair |
| I-80 over Little Elkhorn Creek | 1959 | 36,000 | Fair |
| I-80 over Drainage Ditch | 1960 | 36,000 | Fair |
| WB I-80 over Abandon RR | 1962 | 19,500 | Fair |
| I 80 EB Ia 38 SB over Sugar Creek | 2024 | 19,000 | Good |
| I 80 WB Ia 38 NB over Sugar Creek | 2024 | 18,650 | Good |
| EB I-80 over Cedar River | 2009 | 18,600 | Good |
Source: FHWA National Bridge Inventory, 2025. Counts cover inventoried highway bridges over 20 feet; ratings are reported by the state DOT.
All of Iowa: Iowa bridge conditions by county · every download on the data page.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.