T-50 Parallel Rd over Tonganoxie Creek
Leavenworth County, Kansas · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- T-50 Parallel Rd over Tonganoxie Creek in Leavenworth County, Kansas, is rated in poor condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 4 (poor condition) on the 0-9 scale.
- It was built in 1967, making it 58 years old at the 2025 inventory.
- It carries about 490 vehicles a day (traffic count year 2024).
- Its listed owner is the county highway agency.
- It is one of 9 of the 237 inventoried bridges in Leavenworth County rated poor (3.8%); 9 (3.8%) are rated poor.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- It was rated fair in the 2024 inventory and is now poor (deck 5 to 4).
- Its most recent inspection on record is dated August 2024, on a 24-month routine inspection cycle.
- A poor rating means at least one major component - deck, superstructure, or substructure - is rated 4 or lower on FHWA's 0-9 scale. It does not by itself mean the bridge is unsafe; bridges judged unsafe are closed or load-restricted by their owners.
View this bridge on a map → (39.12884, -95.08973)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 5 | 4 | Poor condition |
| Superstructure | 7 | 7 | Good condition |
| Substructure | 7 | 7 | Good condition |
Bridge details
| Structure | Continuous concrete tee beam |
| Length | about 94 ft |
| Location | 1.5N of Tonganoxie |
| NBI structure number | 000521059904200 |
| Condition class | Poor |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | August 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 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.