T-58 250TH Street over Trib. to Nine Mile Ck.
Leavenworth County, Kansas · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- T-58 250TH Street over Trib. to Nine Mile Ck. in Leavenworth County, Kansas, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 5 (fair condition) on the 0-9 scale.
- It was built in 1940, making it 85 years old at the 2025 inventory.
- It carries about 152 vehicles a day (traffic count year 2024).
- Its listed owner is the county highway agency.
- It is one of 86 of the 237 inventoried bridges in Leavenworth County rated fair (36.3%); 9 (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 January 2025, 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 → (39.10581, -95.15996)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 5 | 5 | Fair condition |
| Superstructure | 6 | 6 | Satisfactory condition |
| Substructure | 6 | 6 | Satisfactory condition |
Bridge details
| Structure | Steel stringer or multi-beam girder |
| Length | about 29 ft |
| Location | 4.0W 0.3S of Tonganoxie |
| NBI structure number | 000521053504228 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | January 2025 |
| 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 Leavenworth County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US-73 Hwy over Seven Mile Creek | 2006 | 27,473 | Good |
| US73 Hwy over Five Mile Creek | 1983 | 20,979 | Good |
| I-70 Hwy EB (kta) over Mud Creek | 1956 | 17,657 | Good |
| I-70 Hwy WB (kta) over Mud Creek | 1956 | 17,657 | Good |
| I-70 Hwy EB (kta) over Ninemile Creek | 1956 | 17,657 | Good |
| I-70 Hwy WB (kta) over Ninemile Creek | 1956 | 17,657 | Fair |
All bridges nearby: Leavenworth County, KS bridge conditions · every bridge in Leavenworth County · Kansas bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.