US-421 over Joe Lick Fork
Madison County, Kentucky · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- US-421 over Joe Lick Fork in Madison County, Kentucky, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the culvert, rated 5 (fair condition) on the 0-9 scale.
- It was built in 1929, making it 96 years old at the 2025 inventory.
- It carries about 3,179 vehicles a day (traffic count year 2021).
- Its listed owner is the state highway agency.
- It is one of 105 of the 157 inventoried bridges in Madison County rated fair (66.9%); 13 (8.3%) are rated poor.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- Its class is unchanged from 2024 (fair), but component ratings moved: culvert 6 to 5.
- Its most recent inspection on record is dated April 2024, 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 → (37.59611, -84.21611)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Culvert | 6 | 5 | Fair condition |
Bridge details
| Structure | Concrete culvert |
| Length | about 29 ft |
| Location | 1.6 Mi Nor. of Jct Ky 594 |
| NBI structure number | 076B00018N |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | April 2024 |
| Inspection interval (item 91) | 24 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 Madison County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I-75 over Ky 52 | 2002 | 66,135 | Fair |
| I-75 over Ky 595 | 2003 | 64,079 | Fair |
| I-75 over Walnut Meadow Branch | 1966 | 59,929 | Fair |
| I-75 Nc over Ky 169 | 1999 | 34,709 | Good |
| I-75 over Ky 169 | 1999 | 34,709 | Good |
| I-75 Nc over Silver Creek&menelaus Rd | 2003 | 32,040 | Fair |
All bridges nearby: Madison County, KY bridge conditions · every bridge in Madison County · Kentucky bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.