Ky-411 over Alder Creek
Grayson County, Kentucky · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Ky-411 over Alder Creek in Grayson County, Kentucky, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the culvert, rated 7 (good condition) on the 0-9 scale.
- It was built in 1955, making it 70 years old at the 2025 inventory.
- It carries about 222 vehicles a day (traffic count year 2021).
- Its listed owner is the state highway agency.
- It is one of 44 of the 119 inventoried bridges in Grayson County rated good (37.0%); 6 (5.0%) 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 September 2021, on a 48-month routine inspection cycle.
- 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 → (37.36806, -86.47167)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Culvert | 7 | 7 | Good condition |
Bridge details
| Structure | Concrete culvert |
| Length | about 33 ft |
| Location | .05 Mi East of Jct Ky 185 |
| NBI structure number | 043B00013N |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | September 2021 |
| Inspection interval (item 91) | 48 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 Kentucky department of transportation.
Busiest bridges in Grayson County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Ky-259 over Western Kentucky Parkway | 2004 | 12,247 | Good |
| Wk-9001 over Clifty Creek | 1963 | 11,993 | Fair |
| Wk-9001 over Caney Fork | 1962 | 11,155 | Fair |
| Wk-9001 over Alder Creek | 1962 | 11,155 | Fair |
| Wk-9001 over Buck Creek | 1962 | 7,571 | Fair |
| Western KY Parkway over Dog Creek | 1962 | 7,571 | Fair |
All bridges nearby: Grayson County, KY bridge conditions · every bridge in Grayson County · Kentucky bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.