Harper Rd OLD K39 over Trib to Duck Creek
Wilson County, Kansas · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Harper Rd OLD K39 over Trib to Duck Creek in Wilson County, Kansas, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the culvert, rated 5 (fair condition) on the 0-9 scale.
- It was built in 1952, making it 73 years old at the 2025 inventory.
- It carries about 675 vehicles a day (traffic count year 2013).
- Its listed owner is the county highway agency.
- It is one of 110 of the 205 inventoried bridges in Wilson County rated fair (53.7%); 25 (12.2%) 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 July 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 → (37.4196, -95.83397)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Culvert | 5 | 5 | Fair condition |
Bridge details
| Structure | Concrete culvert |
| Length | about 43 ft |
| Location | 1.5 N .75 E of Lafontaine |
| NBI structure number | 000000001030003 |
| Condition class | Fair |
| Traffic status (item 41) | Posted for load |
| Last inspection (item 90) | July 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 Wilson County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US-400 Hwy over Clear Creek | 1997 | 4,843 | Good |
| US-400 Hwy over Fall River Drainage | 1996 | 4,843 | Good |
| US-400 Hwy over Silver Creek Tributary | 1997 | 4,720 | Good |
| US-400 Hwy over Silver Creek | 1998 | 4,402 | Good |
| US-400 Hwy over Fall River Drainage | 1996 | 4,340 | Good |
| US-400 Hwy over Fall River | 1997 | 4,340 | Good |
All bridges nearby: Wilson County, KS bridge conditions · every bridge in Wilson County · Kansas bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.