400 Road (rs 1594) over Middle Br. Hackberry CR.
Logan County, Kansas · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- 400 Road (rs 1594) over Middle Br. Hackberry CR. in Logan County, Kansas, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the culvert, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 1952, making it 73 years old at the 2025 inventory.
- It carries about 60 vehicles a day (traffic count year 2020).
- Its listed owner is the county highway agency.
- It is one of 20 of the 55 inventoried bridges in Logan County rated fair (36.4%); 2 (3.6%) 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 September 2024, 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 → (39.03031, -100.92446)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Culvert | 6 | 6 | Satisfactory condition |
Bridge details
| Structure | Concrete culvert |
| Length | about 104 ft |
| Location | 6.6S 4.0W of Oakley |
| NBI structure number | 000000000550021 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | September 2024 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 8: foundations stable, scour above the top of the footing |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Kansas department of transportation.
Busiest bridges in Logan County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I70 Hwy WB over UP Railroad | 1965 | 5,600 | Good |
| I70 Hwy EB over UP Railroad | 1965 | 5,600 | Good |
| US83 Hwy over Plum Creek | 1982 | 3,558 | Good |
| US-83 Hwy over Smoky Hill River | 1995 | 3,558 | Good |
| US-83 Hwy over Smoky Hill River Drain | 1996 | 3,558 | Good |
| US-83 Hiway over Hackberry CR N Br | 1998 | 3,520 | Good |
All bridges nearby: Logan County, KS bridge conditions · every bridge in Logan County · Kansas bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.