T-54 State Avenue over Trib. to Nine Mile Ck.
Leavenworth County, Kansas · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- T-54 State Avenue over Trib. to Nine Mile Ck. in Leavenworth County, Kansas, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 7 (good condition) on the 0-9 scale.
- It was built in 1985, making it 40 years old at the 2025 inventory.
- It carries about 70 vehicles a day (traffic count year 2024).
- Its listed owner is the county highway agency.
- It is one of 142 of the 237 inventoried bridges in Leavenworth County rated good (59.9%); 9 (3.8%) are rated poor.
- A good rating means every major component - deck, superstructure, substructure, or culvert - is rated 7 or higher on FHWA's 0-9 scale: no more than minor problems.
View this bridge on a map → (39.11653, -95.15687)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 7 | Good condition |
| Superstructure | 7 | Good condition |
| Substructure | 7 | Good condition |
Bridge details
| Structure | Continuous concrete slab |
| Length | about 92 ft |
| Location | 3.8W 0.5N of Tonganoxie |
| NBI structure number | 000521053704220 |
| Condition class | Good |
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.