Onaga Road North over French Creek
Pottawatomie County, Kansas · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Onaga Road North over French Creek in Pottawatomie 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 1975, making it 50 years old at the 2025 inventory.
- It carries about 512 vehicles a day (traffic count year 2013).
- Its listed owner is the county highway agency.
- It is one of 131 of the 297 inventoried bridges in Pottawatomie County rated fair (44.1%); 19 (6.4%) 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 September 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 → (39.5202, -96.16521)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 6 | 6 | Satisfactory condition |
| Superstructure | 8 | 8 | Very good condition |
| Substructure | 8 | 8 | Very good condition |
Bridge details
| Structure | Continuous prestressed concrete tee beam |
| Length | about 164 ft |
| Location | 1.6N of Onaga |
| NBI structure number | 000000000750070 |
| Condition class | Fair |
| Traffic status (item 41) | Posted for load |
| Last inspection (item 90) | September 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 Pottawatomie County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US24 Hwy WB over Big Blue River | 1960 | 12,937 | Good |
| US-24 Hwy EB over Big Blue River | 1991 | 12,937 | Good |
| US24 Hwy over College Creek | 2015 | 7,877 | Good |
| US24 Hwy over Sand Creek | 1950 | 6,515 | Good |
| US24 Hwy over Kansas River Drainage | 1950 | 6,515 | Good |
| Green Valley Road over Trib. to Big Blue River | 1984 | 6,314 | Fair |
All bridges nearby: Pottawatomie County, KS bridge conditions · every bridge in Pottawatomie County · Kansas bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.