Smith Mills-uniont over Highland Creek
Union County, Kentucky · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Smith Mills-uniont over Highland Creek in Union County, Kentucky, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the substructure, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 1977, making it 48 years old at the 2025 inventory.
- It carries about 60 vehicles a day (traffic count year 2006).
- Its listed owner is the county highway agency.
- It is one of 87 of the 127 inventoried bridges in Union County rated fair (68.5%); 10 (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 March 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 → (37.77194, -87.84694)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 7 | 7 | Good condition |
| Superstructure | 7 | 7 | Good condition |
| Substructure | 6 | 6 | Satisfactory condition |
Bridge details
| Structure | Prestressed concrete multiple box beam |
| Length | about 118 ft |
| Location | 0.1 Mi N Jct Ky 360 |
| NBI structure number | 113C00009N |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | March 2023 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 4: foundations stable, field review says exposed foundations need protection |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Kentucky department of transportation.
Busiest bridges in Union County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US-60 over Lost Creek | 1954 | 9,681 | Fair |
| US-60 over Cypress Creek | 1968 | 6,836 | Fair |
| US 60 over Br of Casey Creek | 2019 | 6,011 | Good |
| US 60 over Branch of Casey Creek | 2019 | 6,011 | Good |
| US-60 over Eagle Creek | 1970 | 5,469 | Fair |
| US-60B over Lost Creek | 2001 | 3,027 | Fair |
All bridges nearby: Union County, KY bridge conditions · every bridge in Union County · Kentucky bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.