Bridge conditions in Atchison County, Missouri
190 inventoried bridges · 14 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
14 of the 190 bridges the federal inventory lists in Atchison County are rated poor; the rest split 106 good and 70 fair.
- 14 of the 190 bridges in Atchison County, Missouri, are rated in poor condition (7.4%) in the 2025 National Bridge Inventory, as of .
- 106 bridges (55.8%) are rated good and 70 (36.8%) fair.
- The median Atchison County bridge was built in 1995.
- The busiest poor-rated bridge is US 136 E over Rock CR (built 1970), carrying about 2,887 vehicles a day.
Good 55.8% · Fair 36.8% · Poor 7.4% of 190 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 |
|---|---|---|---|
| US 136 E over Rock CR | 1970 | 2,887 | Poor |
| US 136 E over Is 29 | 1969 | 2,350 | Poor |
| US 136 E over Missouri Rvr Abandoned | 1938 | 2,100 | Poor |
| US 59 S over CR | 1922 | 1,739 | Poor |
| US 275 S over E Fk High CR | 1929 | 753 | Poor |
| US 275 S over W Fk High CR | 1929 | 226 | Poor |
| Rt W S over Is 29 | 1973 | 75 | Poor |
| Rt F S over Rock CR | 1962 | 46 | Poor |
| T Ave over Trib of Tarkio Rvr | 1940 | 25 | Poor |
| K Ave over Rock CR | 2010 | 20 | Poor |
| 225 St over Cow Br | 1930 | 15 | Poor |
| 250 St over Tarkio Rvr | 1975 | 10 | Poor |
| T Ave over Lit Tarkio CR | 1996 | 5 | Poor |
| 285 St (sharp Rd) over Rock CR Drain Dtch | 1950 | 5 | Poor |
Busiest bridges in the county
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Is 29 S over Patton Br | 1969 | 17,114 | Fair |
| Is 29 S over Rose Br | 1969 | 17,114 | Fair |
| Is 29 S over Drain Dtch | 1969 | 17,114 | Fair |
| Is 29 S over Turkey CR | 1973 | 16,980 | Fair |
| Is 29 S over Angel Br | 1973 | 16,980 | Fair |
| Is 29 S over Mapes Br | 1969 | 15,391 | Fair |
| Is 29 S over Rock CR | 1973 | 8,541 | Fair |
| Is 29 S over Mill CR | 1973 | 8,541 | Fair |
| Is 29 N over Rock CR | 1973 | 8,439 | Good |
| Is 29 N over Mill CR | 1973 | 8,439 | Fair |
Source: FHWA National Bridge Inventory, 2025. Counts cover inventoried highway bridges over 20 feet; ratings are reported by the state DOT.
All of Missouri: Missouri 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.