Us-421 over Mills Branch
Poor Condition92 years old1,251 vehicles/day
Location
| State | Kentucky |
| County | Harlan |
| Location | 1.0 Mi East Of Jct Ky 568 |
| Carries | Us-421 |
| Crosses | Mills Branch |
| Coordinates | 36.76500, -83.15056 |
Condition Ratings
| Overall Condition | Poor |
| Channel/Waterway | 6 (Satisfactory) |
| Culvert | 4 (Poor) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete |
| Design | Culvert |
| Total Length | 20.0 ft (6.1 m) |
| Max Span | 7.9 ft (2.4 m) |
| Deck Area | 37.2 sq m |
| Main Spans | 2 |
| Year Built | 1934 |
Traffic
| Avg Daily Traffic | 1,251 (2023) |
| Truck Traffic | 20% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 623 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is possibly eligible (requires evaluation) |
| Structure Number | 048B00024N |