Bridge conditions in Sumner County, Kansas
658 inventoried bridges · 16 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
The federal inventory lists 658 bridges in Sumner County: 331 rated good, 311 fair, and 16 poor.
- 16 of the 658 bridges in Sumner County, Kansas, are rated in poor condition (2.4%) in the 2025 National Bridge Inventory, as of .
- 331 bridges (50.3%) are rated good and 311 (47.3%) fair.
- The median Sumner County bridge was built in 1982.
- The busiest poor-rated bridge is I-35 Hwy NB (kta) over Local Road (built 1956), carrying about 9,503 vehicles a day.
Good 50.3% · Fair 47.3% · Poor 2.4% of 658 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 |
|---|---|---|---|
| I-35 Hwy NB (kta) over Local Road | 1956 | 9,503 | Poor |
| Rs 644 59-6-8 over Trib. to Cowskin Creek | 1986 | 2,815 | Poor |
| K55 Hwy over Arkansas River Drainage | 1933 | 836 | Poor |
| US81 Hwy over Bluff Creek | 1924 | 826 | Poor |
| RS 643 E 50th N over at & Sf Railroad | 1967 | 135 | Poor |
| RS0643 over I-35 Hwy (kta) | 1956 | 122 | Poor |
| W. 20th St S. over Trib. to Chikaskia River | 1930 | 100 | Poor |
| Local 26-47-1 over Hargis Creek | 1974 | 75 | Poor |
| Local 66-37-4 over Chikaskia River | 1950 | 50 | Poor |
| Local 32-39-9 over C. R.i.&p. R.R. | 1920 | 50 | Poor |
| Local 60.5-35-7 over Chikaskia River | 1930 | 20 | Poor |
| E 130 Ave N. over Turner Creek | 1970 | 20 | Poor |
| E 30th St S over Deer Creek | 1970 | 10 | Poor |
| S. Broadway Rd. over Trib. to Meridian Creek | 1996 | 10 | Poor |
| Local 48-5-2 over Fall Creek | 1920 | 5 | Poor |
| S Meridian Rd over Slate Creek | 1976 | 5 | Poor |
Busiest bridges in the county
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I-35 Hwy SB (kta) over K-53 Hwy | 1956 | 12,849 | Good |
| I-35 Hwy NB (kta) over K-53 Hwy | 1956 | 12,849 | Good |
| U-160 Hwy over Hargis Creek | 2024 | 11,788 | Good |
| I-35 Hwy SB (kta) over BNSF Railway | 1956 | 11,227 | Fair |
| I-35 Hwy NB (kta) over BNSF Railway | 1956 | 11,227 | Fair |
| I-35 Hwy SB (kta) over Ninnescah River | 1956 | 11,227 | Fair |
| I-35 Hwy NB (kta) over Ninnescah River | 1956 | 11,227 | Fair |
| I-35 Hwy SB (kta) over Ninnescah River Drainage | 1956 | 11,227 | Good |
| I-35 Hwy NB (kta) over Ninnescah River Drainage | 1956 | 11,227 | Good |
| I-35 Hwy SB (kta) over K-55 Hwy | 1956 | 11,227 | 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.