Bridge conditions in Jefferson County, Iowa
156 inventoried bridges · 31 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
About one in 5 bridges in Jefferson County is rated in poor condition: 31 of 156 on the federal inventory, one of the higher shares in Iowa.
- 31 of the 156 bridges in Jefferson County, Iowa, are rated in poor condition (19.9%) in the 2025 National Bridge Inventory, as of .
- 70 bridges (44.9%) are rated good and 55 (35.3%) fair.
- The median Jefferson County bridge was built in 1986.
- The busiest poor-rated bridge is E Burlington Ave over West Crow Creek (built 1954), carrying about 2,100 vehicles a day.
Good 44.9% · Fair 35.3% · Poor 19.9% of 156 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 |
|---|---|---|---|
| E Burlington Ave over West Crow Creek | 1954 | 2,100 | Poor |
| FM over Big Cedar Creek | 1956 | 1,050 | Poor |
| FM over Cedar Creek | 1957 | 340 | Poor |
| FM over Rock Creek | 1964 | 270 | Poor |
| FM over Brush Creek | 1988 | 200 | Poor |
| FM over Lick Creek | 1951 | 120 | Poor |
| Local over Creek | 1900 | 110 | Poor |
| Spruce Ave over Stream | 1950 | 100 | Poor |
| Local over Stream | 1977 | 60 | Poor |
| FM over Drainage | 1954 | 60 | Poor |
| Local over Creek | 1959 | 60 | Poor |
| FM over Drainage | 1900 | 50 | Poor |
| FM over Drainage | 1954 | 50 | Poor |
| FM over Rock Creek | 1963 | 50 | Poor |
| FM over Creek | 1952 | 50 | Poor |
| Local over Stream | 1953 | 45 | Poor |
| FM over Competine Creek | 1954 | 45 | Poor |
| Local over Br.burr Oak Creek | 1962 | 40 | Poor |
| FM over Creek | 1949 | 35 | Poor |
| Local over Big Cedar River | 1991 | 34 | Poor |
| Local over Br.walnut Creek | 1950 | 34 | Poor |
| Local over East Branch Lick Creek | 1950 | 30 | Poor |
| Local over Stream | 1900 | 30 | Poor |
| Local over Creek | 1957 | 30 | Poor |
| Local over Mitchell Creek | 1955 | 20 | Poor |
| Local over Honey Branch Creek | 1918 | 20 | Poor |
| Local over Branch Brush Creek | 1986 | 15 | Poor |
| Local over Stream | 1966 | 15 | Poor |
| Orange Blvd over Middle Walnut Creek | 1922 | 15 | Poor |
| Local over Troy Creek | 1915 | 5 | Poor |
| Local over Br.walnut Creek | 1926 | 5 | Poor |
Busiest bridges in the county
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US 34 EB over BNSF RR | 2008 | 7,800 | Good |
| US 34 WB over BNSF RR | 2008 | 7,800 | Good |
| US 34 over Mitchell Creek | 2009 | 4,360 | Good |
| Ia 1 over Crow Creek | 1928 | 4,100 | Fair |
| US 34 EB over Big Cedar Creek | 2016 | 3,900 | Fair |
| US 34 WB over Big Cedar Creek | 2006 | 3,900 | Good |
| US 34 WB over Church Creek | 2007 | 3,900 | Fair |
| US 34 EB over Church Creek | 2007 | 3,900 | Good |
| US 34 EB over Ash Ave | 2006 | 3,650 | Good |
| US 34 WB over Ash Ave | 2006 | 3,650 | 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.