K900 Parks Route over Perry Lake (rock Creek)
Jefferson County, Kansas · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- K900 Parks Route over Perry Lake (rock Creek) in Jefferson 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 1967, making it 58 years old at the 2025 inventory.
- It carries about 654 vehicles a day (traffic count year 2023).
- It is one of 85 of the 194 inventoried bridges in Jefferson County rated fair (43.8%); 7 (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 December 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 → (39.15056, -95.48139)
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 steel stringer or multi-beam girder |
| Length | about 519 ft |
| Location | Perry Lake State Park |
| NBI structure number | 999990000440484 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | December 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 Jefferson County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| K4 Hwy over Little Muddy Creek | 1964 | 7,418 | Fair |
| K4 Hwy over Muddy Creek | 1964 | 6,861 | Good |
| K4 Hwy over Rock Creek | 1961 | 4,785 | Fair |
| U-24 Hwy over Delaware River | 2024 | 4,211 | Good |
| US24 Hwy over Little Muddy Creek | 1958 | 3,966 | Fair |
| US24 Hwy EB over Muddy Creek | 1962 | 3,966 | Fair |
All bridges nearby: Jefferson County, KS bridge conditions · every bridge in Jefferson County · Kansas bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.