W. 30th DR. over Trib to Crooked Creek
Osborne County, Kansas · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- W. 30th DR. over Trib to Crooked Creek in Osborne County, Kansas, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the substructure, rated 5 (fair condition) on the 0-9 scale.
- It was built in 1930, making it 95 years old at the 2025 inventory.
- It carries about 25 vehicles a day (traffic count year 2020).
- Its listed owner is the county highway agency.
- It is one of 97 of the 244 inventoried bridges in Osborne County rated fair (39.8%); 19 (7.8%) are rated poor.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- Its condition class and component ratings are unchanged from the 2024 inventory.
- Its most recent inspection on record is dated May 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 → (39.52404, -98.95267)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 6 | 6 | Satisfactory condition |
| Superstructure | 6 | 6 | Satisfactory condition |
| Substructure | 5 | 5 | Fair condition |
Bridge details
| Structure | Continuous concrete slab |
| Length | about 32 ft |
| Location | 4.0N 0.1W of Alton |
| NBI structure number | 000710645903660 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | May 2023 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 5: foundations stable, scour within the limits of the footing or piles |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Kansas department of transportation.
Busiest bridges in Osborne County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US24 Hwy over N F Solomon R Drain | 1967 | 2,307 | Fair |
| US24 Hwy over Kyle Railroad | 1968 | 2,307 | Fair |
| US281 Hwy over Osborne Canal Drainage | 1950 | 1,667 | Good |
| US24 Hwy over N F Solomon R Drain | 1949 | 1,620 | Good |
| US24 Hwy over N F Solomon R Drain | 1949 | 1,620 | Good |
| US24 Hwy over N F Solomon R Drain | 1949 | 1,620 | Good |
All bridges nearby: Osborne County, KS bridge conditions · every bridge in Osborne County · Kansas bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.