Bridge conditions in Nemaha County, Kansas
355 inventoried bridges · 37 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
Nemaha County has 37 bridges rated poor out of 355 inventoried, a 10.4% share that puts it well above the national rate of about 7%.
- 37 of the 355 bridges in Nemaha County, Kansas, are rated in poor condition (10.4%) in the 2025 National Bridge Inventory, as of .
- 134 bridges (37.7%) are rated good and 184 (51.8%) fair.
- The median Nemaha County bridge was built in 1992.
- The busiest poor-rated bridge is Rs 1267 C-9 over Silver Creek (built 1983), carrying about 342 vehicles a day.
Good 37.7% · Fair 51.8% · Poor 10.4% of 355 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.
Busiest bridges in the county
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US-36 Hwy over South F Big Nemaha Riv | 1996 | 3,649 | Good |
| US36 Hwy over Black Vermillion Creek | 1958 | 3,307 | Fair |
| US-36 Hwy over Harris Creek Drainage | 1996 | 3,162 | Good |
| US36 Hwy over Harris Creek Drainage | 1940 | 3,092 | Good |
| US36 Hwy over Cedar Creek | 1940 | 3,092 | Good |
| US36 Hwy over Cedar Creek | 1940 | 3,092 | Good |
| US-36 Hwy over Gregg Creek | 1995 | 3,092 | Good |
| US36 Hwy over N F Black Vermillion Riv | 1959 | 3,045 | Fair |
| US75 Hwy over Rock Creek | 2015 | 2,965 | Good |
| K63 Hwy over Nemaha River Drainage | 1957 | 1,260 | Good |
Source: FHWA National Bridge Inventory, 2025. Counts cover inventoried highway bridges over 20 feet; ratings are reported by the state DOT.
Every bridge in Nemaha County → - all 355, busiest first, each with its own condition record.
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.