| U.S. Route 42 | |
|---|---|
|  | |
| Route information | |
| Length: | 355 mi (571 km) | 
| Existed: | 1926 – present | 
| Major junctions | |
| West end: |   US 31E / US 60 in Louisville, KY | 
| 
  I-90 in Cleveland, OH | |
| North end: |          US 6 / US 20 / US 322 / US 422 / SR 3 / SR 8 / SR 14 / SR 43 / SR 87 in Cleveland, OH | 
| Location | |
| States: | Kentucky, Ohio | 
| Highway system | |
 I-64 in Louisville, KY
I-64 in Louisville, KY
 I-71 / I-75 in Florence, KY, Fort Mitchell, KY, Covington, KY, and Cincinnati, OH
I-71 / I-75 in Florence, KY, Fort Mitchell, KY, Covington, KY, and Cincinnati, OH I-71 in Cincinnati, OH, Middleburg Heights, OH, and Cleveland, OH
I-71 in Cincinnati, OH, Middleburg Heights, OH, and Cleveland, OH I-70 near London, OH
I-70 near London, OH I-80 in Strongsville, OH
I-80 in Strongsville, OH