Bridge conditions in Crawford County, Iowa
301 inventoried bridges · 23 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
23 of the 301 bridges the federal inventory lists in Crawford County are rated poor; the rest split 135 good and 143 fair.
- 23 of the 301 bridges in Crawford County, Iowa, are rated in poor condition (7.6%) in the 2025 National Bridge Inventory, as of .
- 135 bridges (44.9%) are rated good and 143 (47.5%) fair.
- The median Crawford County bridge was built in 1986.
- The busiest poor-rated bridge is FM Rt M-36 over East Boyer River (built 1958), carrying about 1,951 vehicles a day.
Good 44.9% · Fair 47.5% · Poor 7.6% of 301 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 Rt M-36 over East Boyer River | 1958 | 1,951 | Poor |
| Donna Reed Dr over over UP RR | 1935 | 1,846 | Poor |
| FM over Small Stream | 1967 | 627 | Poor |
| Co Rd over East Boyer River | 1958 | 443 | Poor |
| Main St over East Boyer River | 1913 | 303 | Poor |
| Local over East Boyer River | 1967 | 125 | Poor |
| Local over Miller Creek | 1981 | 58 | Poor |
| Co Rd over Small Stream | 1960 | 54 | Poor |
| Local over W Fk W Nishnabotna River | 1944 | 46 | Poor |
| Local over Soldier River | 1951 | 41 | Poor |
| FM over Soldier River | 1957 | 40 | Poor |
| Local over W Fk W Nishnabotna River | 1949 | 35 | Poor |
| Local over Willow Creek | 1961 | 35 | Poor |
| Local over East Soldier River | 1957 | 34 | Poor |
| Local over W Fk W Nishnabotna River | 1945 | 30 | Poor |
| Local over Boyer River | 1971 | 30 | Poor |
| Local over Big Creek | 1949 | 30 | Poor |
| 180TH St over Beaver Creek | 2018 | 26 | Poor |
| Local over Small Stream | 1962 | 26 | Poor |
| Local over W Fk W Nishnabotna River | 1987 | 21 | Poor |
| Local over Small Stream | 1965 | 21 | Poor |
| Local over Boyer River | 1980 | 15 | Poor |
| Local over Boyer River | 1971 | 11 | Poor |
Busiest bridges in the county
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Ave C over West Boyer River | 1985 | 7,347 | Fair |
| Ave C over Cc RR | 1999 | 7,158 | Fair |
| US 30 over Drainage Ditch | 1958 | 4,670 | Fair |
| US 30 & 59 over over UP RR | 1962 | 4,500 | Fair |
| US 30 & 59 over East Boyer River | 1962 | 4,500 | Fair |
| US 30 & 59 over over UP RR | 1962 | 4,400 | Fair |
| US 30 & 59 over East Boyer River | 1962 | 4,400 | Fair |
| NB US 59 over over Cc RR | 1967 | 4,400 | Fair |
| NB US 59 over Boyer River | 1967 | 4,400 | Fair |
| SB US 59 over over Cc RR | 1967 | 4,300 | Fair |
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.