Cty Rd 310(z.9-8.9 over Verdigris River
Greenwood County, Kansas · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Cty Rd 310(z.9-8.9 over Verdigris River in Greenwood County, Kansas, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 1972, making it 53 years old at the 2025 inventory.
- It carries about 33 vehicles a day (traffic count year 2006).
- Its listed owner is the county highway agency.
- It is one of 127 of the 235 inventoried bridges in Greenwood County rated fair (54.0%); 50 (21.3%) are rated poor.
- Its traffic status in the 2025 inventory is posted for load (NBI item 41).
- Its condition class and component ratings are unchanged from the 2024 inventory.
- Its most recent inspection on record is dated June 2023, on a 24-month routine inspection cycle.
- A fair rating means the lowest-rated major component scores 5 or 6 on FHWA's 0-9 scale: some deterioration or minor section loss, but the structure is sound. It is the middle class, not a warning.
View this bridge on a map → (38.05596, -96.05066)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 6 | 6 | Satisfactory condition |
| Superstructure | 6 | 6 | Satisfactory condition |
| Substructure | 7 | 7 | Good condition |
Bridge details
| Structure | Continuous steel stringer or multi-beam girder |
| Length | about 203 ft |
| Location | 5.0N 5.9E of Hamilton |
| NBI structure number | 000370957905669 |
| Condition class | Fair |
| Traffic status (item 41) | Posted for load |
| Last inspection (item 90) | June 2023 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | U: unknown foundation, not evaluated for scour |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Kansas department of transportation.
Busiest bridges in Greenwood County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US400 Hwy over North Br. Otter Creek | 1996 | 4,709 | Good |
| US400 Hwy over Otter Creek | 1996 | 4,709 | Good |
| US400 Hwy over S Br Otter Creek Drg | 1996 | 4,709 | Good |
| US400 Hwy over S Br Otter Creek Drg | 1996 | 4,709 | Good |
| US400 Hwy over S Br Otter Creek Drg | 1996 | 4,709 | Good |
| US400 Hwy over Salt Creek | 1995 | 4,709 | Good |
All bridges nearby: Greenwood County, KS bridge conditions · every bridge in Greenwood County · Kansas bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.