I-71 over Mill CR + Mill CR Rd
Carroll County, Kentucky · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- I-71 over Mill CR + Mill CR Rd in Carroll 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 1967, making it 58 years old at the 2025 inventory.
- It carries about 14,909 vehicles a day (traffic count year 2021).
- Its listed owner is the state highway agency.
- It is one of 51 of the 68 inventoried bridges in Carroll County rated fair (75.0%); 8 (11.8%) 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 November 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 → (38.59222, -85.17528)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 8 | 8 | Very good condition |
| Superstructure | 7 | 7 | Good condition |
| Substructure | 6 | 6 | Satisfactory condition |
Bridge details
| Structure | Concrete tee beam |
| Length | about 335 ft |
| Location | Nbl .5 Mi N of Trimble Co |
| NBI structure number | 021B00038R |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | November 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 Carroll County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I-71 over Green Bottom Road | 1967 | 41,258 | Fair |
| I-71 over Kentucky River | 1967 | 20,629 | Fair |
| I-71 over Kentucky River | 1967 | 20,629 | Fair |
| I-71 over Ky 1112 & Whites Run Crk | 1967 | 17,812 | Poor |
| I-71 over Ky 1112 & Whites Run Crk | 1967 | 17,812 | Fair |
| I-71 over CSX RR & Ky 227 | 1967 | 17,812 | Fair |
All bridges nearby: Carroll County, KY bridge conditions · every bridge in Carroll County · Kentucky bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.