Bridge conditions in Cerro Gordo County, Iowa
268 inventoried bridges · 14 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
Cerro Gordo County tracks close to typical: 14 of its 268 inventoried bridges (5.2%) are rated poor, against a national rate of about 7%.
- 14 of the 268 bridges in Cerro Gordo County, Iowa, are rated in poor condition (5.2%) in the 2025 National Bridge Inventory, as of .
- 119 bridges (44.4%) are rated good and 135 (50.4%) fair.
- The median Cerro Gordo County bridge was built in 1972.
- The busiest poor-rated bridge is 150TH over Beaver Dam Creek (built 1961), carrying about 687 vehicles a day.
Good 44.4% · Fair 50.4% · Poor 5.2% of 268 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 |
|---|---|---|---|
| 150TH over Beaver Dam Creek | 1961 | 687 | Poor |
| B65 120TH St over Bailey Creek | 1956 | 403 | Poor |
| Vine St over Rock Falls Creek | 1966 | 324 | Poor |
| 275TH over Willow Creek | 1941 | 91 | Poor |
| Hickory Ave over Calmus Creek | 1917 | 44 | Poor |
| E-w 7TH Ave N over Willow Creek | 1900 | 26 | Poor |
| Violet St over Rock Falls Creek | 1900 | 26 | Poor |
| Finch over Waterway | 1965 | 25 | Poor |
| 200TH over Creek | 1937 | 21 | Poor |
| Fir over Beaver Dam Creek | 1927 | 21 | Poor |
| 200TH over E Br Beaver Dam Creek | 1965 | 16 | Poor |
| 180TH over East Creek | 1937 | 16 | Poor |
| Killdeer over Beaver Dam Creek | 1900 | 16 | Poor |
| Quail over Beaver Dam Creek | 1913 | 15 | Poor |
Busiest bridges in the county
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I-35 over Calmus Creek | 1970 | 21,400 | Fair |
| Ia 122 over Cheslea Creek | 2010 | 18,800 | Good |
| I-35 over Drainage Ditch | 1972 | 18,100 | Good |
| I-35 over Drainage Ditch | 1972 | 17,700 | Fair |
| I-35 over Drainage Ditch | 1971 | 17,600 | Fair |
| I 35 over Drainage Ditch | 1972 | 17,600 | Fair |
| I-35 over Willow Creek | 1971 | 17,200 | Fair |
| US 18 over Willow Creek | 1952 | 14,400 | Fair |
| NB I-35 over over Imrl RR | 1970 | 11,100 | Fair |
| I 35 SB over Main St | 1970 | 10,800 | 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.