Bridge conditions in Decatur County, Kansas
157 inventoried bridges · 14 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
The federal inventory lists 157 bridges in Decatur County: 72 rated good, 71 fair, and 14 poor.
- 14 of the 157 bridges in Decatur County, Kansas, are rated in poor condition (8.9%) in the 2025 National Bridge Inventory, as of .
- 72 bridges (45.9%) are rated good and 71 (45.2%) fair.
- The median Decatur County bridge was built in 1972.
- The busiest poor-rated bridge is L Lane over Prairie Dog Creek (built 1953), carrying about 30 vehicles a day.
Good 45.9% · Fair 45.2% · Poor 8.9% of 157 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 |
|---|---|---|---|
| L Lane over Prairie Dog Creek | 1953 | 30 | Poor |
| Y5 Lane over Sappa Creek Tributary | 1946 | 25 | Poor |
| Y Lane over Beaver Creek | 1950 | 20 | Poor |
| Y Lane over Beaver Creek | 1950 | 20 | Poor |
| 400 Road over Beaver Creek | 1942 | 20 | Poor |
| 1900 Road over Big Timber Creek | 1955 | 20 | Poor |
| Y Lane over Beaver Creek | 1947 | 15 | Poor |
| H Lane over Prairie Dog Creek | 1937 | 15 | Poor |
| 2500 Road over Prairie Dog Creek | 1936 | 15 | Poor |
| N Lane over Plum Creek | 1957 | 15 | Poor |
| 700 Road over Trib N Fork Prairie Dog | 1947 | 10 | Poor |
| 1600 Road over Sappa Creek | 1937 | 10 | Poor |
| 1800 Road over Prairie Dog Creek | 1995 | 10 | Poor |
| 2200 Road over Prairie Dog Creek | 1940 | 10 | Poor |
Busiest bridges in the county
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US83 Hwy over Sappa Creek Drainage | 2016 | 2,429 | Good |
| US83 Hwy over Former Oberlin Lake | 1972 | 1,943 | Good |
| K383 Hwy over Turtle Creek | 1959 | 1,876 | Fair |
| K383 Hwy over Prairie Dog Creek Drg | 1938 | 1,876 | Good |
| US83 Hwy over Sappa Creek Drainage | 1936 | 1,590 | Fair |
| US83 Hwy over Sappa Creek | 1986 | 1,590 | Fair |
| US83 Hwy over Sappa Creek Drainage | 1986 | 1,590 | Good |
| US 83 Hwy over Nkc Rr/local Road | 1972 | 1,546 | Good |
| US 83 Hwy over Beaver Creek | 1972 | 1,546 | Good |
| US 83 Hwy over Beaver Creek Dr | 1972 | 1,546 | 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.