I35 Hwy NB over Rock Creek
Osage County, Kansas · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- I35 Hwy NB over Rock Creek in Osage 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 1973, making it 52 years old at the 2025 inventory.
- It carries about 6,500 vehicles a day (traffic count year 2023).
- Its listed owner is the state highway agency.
- It is one of 106 of the 302 inventoried bridges in Osage County rated fair (35.1%); 18 (6.0%) 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 February 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 → (38.4525, -95.58944)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 6 | 6 | Satisfactory condition |
| Superstructure | 7 | 7 | Good condition |
| Substructure | 7 | 7 | Good condition |
Bridge details
| Structure | Continuous concrete tee beam |
| Length | about 206 ft |
| Location | 0.60 Mi E Ejct K31 NB |
| NBI structure number | 999903500700101 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | February 2024 |
| 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 Osage County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I35 Hwy SB over Long Creek | 1973 | 6,750 | Good |
| I35 Hwy NB over Long Creek | 1973 | 6,750 | Good |
| I35 Hwy SB over Coal Creek | 1974 | 6,750 | Good |
| I35 Hwy NB over Coal Creek | 1973 | 6,750 | Good |
| I35 Hwy SB over Rock Creek | 1973 | 6,500 | Good |
| I35 Hwy SB over Tequa Creek | 1973 | 6,500 | Good |
All bridges nearby: Osage County, KS bridge conditions · every bridge in Osage County · Kansas bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.