K20 Hwy over South Fork Wolf River
Brown County, Kansas · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- K20 Hwy over South Fork Wolf River in Brown County, Kansas, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 7 (good condition) on the 0-9 scale.
- It was built in 2014, making it 11 years old at the 2025 inventory.
- It carries about 177 vehicles a day (traffic count year 2023).
- Its listed owner is the state highway agency.
- It is one of 128 of the 256 inventoried bridges in Brown County rated good (50.0%); 11 (4.3%) are rated poor.
- A good rating means every major component - deck, superstructure, substructure, or culvert - is rated 7 or higher on FHWA's 0-9 scale: no more than minor problems.
View this bridge on a map → (39.68194, -95.36861)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 7 | Good condition |
| Superstructure | 8 | Very good condition |
| Substructure | 8 | Very good condition |
Bridge details
| Structure | Continuous concrete slab |
| Length | about 142 ft |
| Location | 3.95 Mi NE E Jct US 73 |
| NBI structure number | 999902000070631 |
| Condition class | Good |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Kansas department of transportation.
Busiest bridges in Brown 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 |
All bridges nearby: Brown County, KS bridge conditions · every bridge in Brown County · Kansas bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.