Bridge conditions in Brown County, Kansas
256 inventoried bridges · 11 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
11 of the 256 bridges the federal inventory lists in Brown County are rated poor; the rest split 128 good and 117 fair.
- 11 of the 256 bridges in Brown County, Kansas, are rated in poor condition (4.3%) in the 2025 National Bridge Inventory, as of .
- 128 bridges (50.0%) are rated good and 117 (45.7%) fair.
- The median Brown County bridge was built in 1980.
- The busiest poor-rated bridge is RS 2085 240th St. over Unnamed Stream (built 1930), carrying about 1,096 vehicles a day.
Good 50.0% · Fair 45.7% · Poor 4.3% of 256 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 |
|---|---|---|---|
| RS 2085 240th St. over Unnamed Stream | 1930 | 1,096 | Poor |
| RS 60 170th St. over Squaw Creek | 1925 | 320 | Poor |
| Irr Bia Rte 1006 over Delaware River | 1970 | 150 | Poor |
| Irr Bia Rte 1008 over Trash Creek | 1985 | 150 | Poor |
| Coralberry Rd. over Unnamed Stream | 1930 | 60 | Poor |
| 220th St. over Unnamed Stream | 1930 | 50 | Poor |
| Local Rd. 28 over Pony Creek | 1925 | 50 | Poor |
| Antelope Rd. over Unnamed Stream | 1918 | 45 | Poor |
| Irr Bia Rte 1019 over Brush Creek | 1987 | 30 | Poor |
| Sagebrush Rd. over Unnamed Stream | 1982 | 30 | Poor |
| Tumbleweed Rd. over Fox Creek | 1915 | 25 | Poor |
Busiest bridges in the county
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US75 Hwy over Craig Creek Drainage | 1956 | 5,099 | Good |
| US-75 Hwy over Craig Creek Drainage | 1995 | 5,099 | Good |
| US-75 Hwy over Main Street | 2003 | 4,709 | Good |
| US-75 Hwy over Old K-246 Hwy UP RR | 2003 | 4,709 | Good |
| US75 Hwy over Delaware River Dr | 1954 | 4,596 | Good |
| US-75 Hwy over Plum Creek | 1995 | 4,596 | Good |
| US-75 Hwy over Delaware River | 1994 | 4,596 | Good |
| US-75 Hwy over US-36 Hwy | 2003 | 4,596 | Good |
| US36 Hwy over N Wolf Riv. UP RR | 1979 | 4,586 | Good |
| US36 Hwy over Local Rd | 1979 | 4,586 | Fair |
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.