K18 Hwy over Chapman Creek Overflow
Dickinson County, Kansas · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- K18 Hwy over Chapman Creek Overflow in Dickinson 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 1934, making it 91 years old at the 2025 inventory.
- It carries about 764 vehicles a day (traffic count year 2023).
- Its listed owner is the state highway agency.
- It is one of 176 of the 372 inventoried bridges in Dickinson County rated fair (47.3%); 14 (3.8%) 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 October 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 → (39.03111, -97.04917)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Culvert | 6 | 6 | Satisfactory condition |
Bridge details
| Structure | Concrete culvert |
| Length | about 24 ft |
| Location | 4.36 Mi E Ejct K15 |
| NBI structure number | 999901800210691 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | October 2023 |
| 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 Dickinson County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I 70 Hwy over Chapman Creek | 2021 | 8,750 | Good |
| I 70 Hwy over Chapman Creek | 2021 | 8,750 | Good |
| I-70 Highway over Eden Road | 1960 | 8,750 | Fair |
| I-70 Hwy WB over BNSF Railway | 2006 | 8,550 | Good |
| I-70 Hwy EB over BNSF Railway | 2005 | 8,550 | Good |
| I-70 Hwy WB over Mud Creek | 2006 | 8,550 | Good |
All bridges nearby: Dickinson County, KS bridge conditions · every bridge in Dickinson County · Kansas bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.