Thorn Drive over Davis Creek
Wyandotte County, Kansas · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Thorn Drive over Davis Creek in Wyandotte County, Kansas, is rated in poor condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the substructure, rated 4 (poor condition) on the 0-9 scale.
- It was built in 1961, making it 64 years old at the 2025 inventory.
- It carries about 356 vehicles a day (traffic count year 1990).
- Its listed owner is the county highway agency.
- It is one of 9 of the 316 inventoried bridges in Wyandotte County rated poor (2.8%); 9 (2.8%) 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 March 2023, 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 → (39.08701, -94.71333)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 5 | 5 | Fair condition |
| Superstructure | 6 | 6 | Satisfactory condition |
| Substructure | 4 | 4 | Poor condition |
Bridge details
| Structure | Continuous steel stringer or multi-beam girder |
| Length | about 130 ft |
| Location | Thorn Dr S of Old Ks Ave. |
| NBI structure number | 514301050000311 |
| Condition class | Poor |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | March 2023 |
| 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 Wyandotte County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I35 Hwy SB over Turkey CR Fox Rdg Dr | 1959 | 52,500 | Good |
| I35 Hwy NB over Turkey Creek Nall Ave | 1959 | 52,500 | Good |
| I35 Hwy SB over Roe Blvd | 1959 | 52,500 | Good |
| I35 Hwy NB over Roe Blvd | 1959 | 52,500 | Good |
| I35 Hwy SB over Turkey CR Mill Street | 1961 | 52,500 | Good |
| I35 Hwy NB over Turkey CR Mill Street | 1961 | 52,500 | Good |
All bridges nearby: Wyandotte County, KS bridge conditions · every bridge in Wyandotte County · Kansas bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.