Interstate 64 Nc over Big Sandy River
Boyd County, Kentucky · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Interstate 64 Nc over Big Sandy River in Boyd County, Kentucky, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 5 (fair condition) on the 0-9 scale.
- It was built in 1998, making it 27 years old at the 2025 inventory.
- It carries about 11,703 vehicles a day (traffic count year 2018).
- Its listed owner is the state highway agency.
- It is one of 54 of the 89 inventoried bridges in Boyd County rated fair (60.7%); 7 (7.9%) 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 May 2023, 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 → (38.38167, -82.59417)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 5 | 5 | Fair condition |
| Superstructure | 7 | 7 | Good condition |
| Substructure | 5 | 5 | Fair condition |
Bridge details
| Structure | Continuous steel stringer or multi-beam girder |
| Length | about 1,115 ft |
| Location | Wbl @ W.va. State Line |
| NBI structure number | 010B00046L |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | May 2023 |
| 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 Boyd County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US-60 over Shope Branch | 1971 | 20,994 | Fair |
| 1-64 E/B Off Ramp over Little Sandy | 2007 | 17,808 | Good |
| I-64 W/B on Ramp over over Little Sandy | 2007 | 17,808 | Good |
| US23 SB|Russell Rd over Hoods Creek | 1965 | 14,578 | Fair |
| US-23 over Hoods Creek | 1965 | 14,578 | Fair |
| US-23S over Ohio River CSX Streets | 1930 | 13,737 | Fair |
All bridges nearby: Boyd County, KY bridge conditions · every bridge in Boyd County · Kentucky bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.