Bridge conditions in Harper County, Kansas
373 inventoried bridges · 32 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
The federal inventory lists 373 bridges in Harper County: 99 rated good, 242 fair, and 32 poor.
- 32 of the 373 bridges in Harper County, Kansas, are rated in poor condition (8.6%) in the 2025 National Bridge Inventory, as of .
- 99 bridges (26.5%) are rated good and 242 (64.9%) fair.
- The median Harper County bridge was built in 1965.
- The busiest poor-rated bridge is NW 60 Rd over Camp Creek (built 1924), carrying about 1,030 vehicles a day.
Good 26.5% · Fair 64.9% · Poor 8.6% of 373 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 |
|---|---|---|---|
| NW 60 Rd over Camp Creek | 1924 | 1,030 | Poor |
| Rs 302 NW 50TH Ave over Stream | 1940 | 80 | Poor |
| NW 60 Rd over Cottonwood Creek | 1918 | 80 | Poor |
| SW 40th RD over Little Sandy Creek | 1930 | 80 | Poor |
| NE 30 Rd over Stream | 1930 | 80 | Poor |
| RS 1485 40 Ave over Trib. to Silver Creek | 1925 | 66 | Poor |
| Rs 1485 SE 40 Ave over Wildcat Creek | 1935 | 55 | Poor |
| Local Rd. L.9-20.0 over Stream | 1978 | 50 | Poor |
| SW 40 Ave over Stream | 1930 | 40 | Poor |
| NE 120 Rd over Stream | 1970 | 30 | Poor |
| NW 170 Ave over Gene Creek | 1948 | 20 | Poor |
| NW 130 Rd over Stream | 2001 | 20 | Poor |
| NE 150 Rd over Spring Creek | 1945 | 20 | Poor |
| Local Cc.0-21.9 over Spring Branch Creek | 1979 | 20 | Poor |
| NW 170 Ave over Spring Creek | 1970 | 10 | Poor |
| NW 30th RD over Stream | 1970 | 10 | Poor |
| NW 110 Rd over Bluff Creek | 1966 | 10 | Poor |
| NW 80 Rd 9.0-g.4 over West Branch Bluff Creek | 1968 | 10 | Poor |
| NW 90 Rd 8.0-i.7 over Middle Branch Bluff Ck. | 1967 | 10 | Poor |
| NW 110 Ave over Stream | 1960 | 10 | Poor |
| SW 70 Rd over Trib. to Sandy Creek | 1976 | 10 | Poor |
| SW 50 Ave over Stream | 1952 | 10 | Poor |
| Local N.2-19 over Beaver Creek | 1930 | 10 | Poor |
| NW 10 Rd over Bluff Creek | 1965 | 10 | Poor |
| SW 20 Ave over Copper Creek | 1960 | 10 | Poor |
| NE 130 Rd @ 15 Ave over Trib. to Sand Creek | 1980 | 10 | Poor |
| NE 140 Rd over Spring Creek | 1970 | 10 | Poor |
| SE 20 Rd over Silver Creek | 1930 | 10 | Poor |
| NE 120 Ave over Stream | 1948 | 10 | Poor |
| SE 50 Rd over Bluff Creek | 1970 | 10 | Poor |
| Local Dd.2-23 over Bluff Creek | 1970 | 10 | Poor |
| SW 60 Ave over Stream | 1930 | 5 | Poor |
Busiest bridges in the county
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| K2 Hwy over Spring Creek Drainage | 1959 | 3,406 | Good |
| K-2 Hwy over East Sand Creek Drainage | 1992 | 2,657 | Good |
| K2 Hwy over East Sand Creek Drainage | 1937 | 2,616 | Good |
| K2 Hwy over East Spring Creek | 1937 | 2,616 | Good |
| K2 Hwy over Chikaskia River | 1990 | 2,616 | Good |
| K-2 Hwy over BNSF Railroad | 1992 | 2,544 | Good |
| K-2 Hwy over Sand Creek | 1992 | 2,544 | Good |
| US160 Hwy over East Sand Creek Drainage | 1956 | 2,483 | Good |
| US160 Hwy over East Sand Creek Drainage | 1956 | 1,888 | Good |
| US160 Hwy over BNSF Railway | 1962 | 1,508 | 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.