US 421 over Branch of Island Creek
Clay County, Kentucky · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- US 421 over Branch of Island Creek in Clay County, Kentucky, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the substructure, rated 5 (fair condition) on the 0-9 scale.
- It was built in 2021, making it 4 years old at the 2025 inventory.
- It carries about 5,229 vehicles a day (traffic count year 2023).
- Its listed owner is the state highway agency.
- It is one of 107 of the 165 inventoried bridges in Clay County rated fair (64.8%); 23 (13.9%) are rated poor.
- 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 → (37.19278, -83.77972)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 8 | Very good condition |
| Superstructure | 8 | Very good condition |
| Substructure | 5 | Fair condition |
Bridge details
| Structure | Concrete stringer or multi-beam girder |
| Length | about 25 ft |
| Location | 2.2 M N of JCT KY 638 |
| NBI structure number | 026B00120N |
| Condition class | Fair |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Kentucky department of transportation.
Busiest bridges in Clay County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US-421 over Little Goose Creek | 1993 | 13,190 | Fair |
| Ky-80 over Hal Rogers Parkway | 1971 | 11,538 | Fair |
| US-421 over Goose Creek | 1983 | 8,691 | Fair |
| Hr-9006 over LITTLE GOOSE CRK & R | 1970 | 8,477 | Fair |
| Hr-9006 over Cheek Rd | 1970 | 8,477 | Fair |
| Hr-9006 over Urban Road | 1970 | 8,477 | Fair |
All bridges nearby: Clay County, KY bridge conditions · every bridge in Clay County · Kentucky bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.