Ky-491 over Ky 491 over I-75
Grant County, Kentucky · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Ky-491 over Ky 491 over I-75 in Grant County, Kentucky, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 7 (good condition) on the 0-9 scale.
- It was built in 2001, making it 24 years old at the 2025 inventory.
- It carries about 10,163 vehicles a day (traffic count year 2023).
- Its listed owner is the state highway agency.
- It is one of 45 of the 79 inventoried bridges in Grant County rated good (57.0%); 6 (7.6%) 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 July 2024, 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 → (38.7875, -84.60639)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 7 | 7 | Good condition |
| Superstructure | 7 | 7 | Good condition |
| Substructure | 7 | 7 | Good condition |
Bridge details
| Structure | Continuous prestressed concrete stringer or multi-beam girder |
| Length | about 289 ft |
| Location | 2 Mi NW of Jct US 25 |
| NBI structure number | 041B00048N |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | July 2024 |
| Inspection interval (item 91) | 48 months |
| Scour (item 113) | N: not over a waterway |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Kentucky department of transportation.
Busiest bridges in Grant County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I-75 over Three Fork Creek | 1963 | 44,363 | Fair |
| I-75 Southbound over Ragtown Road | 2007 | 22,182 | Good |
| I-75 Northbound over Ragtown Road | 2007 | 22,182 | Good |
| Ky-22 over I-75 @ 158.54 | 1998 | 16,492 | Good |
| US-25 over NS (cno&tp) System | 1983 | 9,818 | Good |
| Ky-36 over I-75 | 1961 | 6,573 | Fair |
All bridges nearby: Grant County, KY bridge conditions · every bridge in Grant County · Kentucky bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.