Bridge conditions in Jefferson County, Kansas
194 inventoried bridges · 7 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
Jefferson County tracks close to typical: 7 of its 194 inventoried bridges (3.6%) are rated poor, against a national rate of about 7%.
- 7 of the 194 bridges in Jefferson County, Kansas, are rated in poor condition (3.6%) in the 2025 National Bridge Inventory, as of .
- 102 bridges (52.6%) are rated good and 85 (43.8%) fair.
- The median Jefferson County bridge was built in 1979.
- The busiest poor-rated bridge is Ferguson Rd. over Little Rock Creek (built 1968), carrying about 430 vehicles a day.
Good 52.6% · Fair 43.8% · Poor 3.6% of 194 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 |
|---|---|---|---|
| Ferguson Rd. over Little Rock Creek | 1968 | 430 | Poor |
| 62nd over Muddy Creek | 1991 | 50 | Poor |
| McCall Rd over Slough Creek | 1923 | 35 | Poor |
| Clark Rd. over Muddy Creek | 1968 | 20 | Poor |
| 150th over Little Rock Creek | 1977 | 15 | Poor |
| 206th over trib Delaware River | 1909 | 5 | Poor |
| Old County Road over Fish Pond Creek | 1930 | 1 | Poor |
Busiest bridges in the county
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| K4 Hwy over Little Muddy Creek | 1964 | 7,418 | Fair |
| K4 Hwy over Muddy Creek | 1964 | 6,861 | Good |
| K4 Hwy over Rock Creek | 1961 | 4,785 | Fair |
| U-24 Hwy over Delaware River | 2024 | 4,211 | Good |
| US24 Hwy over Little Muddy Creek | 1958 | 3,966 | Fair |
| US24 Hwy EB over Muddy Creek | 1962 | 3,966 | Fair |
| US24 Hwy WB over Muddy Creek | 1979 | 3,966 | Good |
| US24 Hwy over Muddy Creek Dr | 1979 | 3,966 | Good |
| US24 Hwy WB over Elm Creek | 1979 | 3,966 | Good |
| US24 Hwy EB over Elm Creek | 1979 | 3,966 | Good |
Source: FHWA National Bridge Inventory, 2025. Counts cover inventoried highway bridges over 20 feet; ratings are reported by the state DOT.
All of Kansas: Kansas 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.