The following highways are numbered 340:
Canada edit
India edit
Japan edit
Norway edit
United States edit
- U.S. Route 340
- Arkansas Highway 340
- Colorado State Highway 340
- Georgia State Route 340 (former)
- Hawaii Route 340
- Indiana State Road 340
- Missouri Route 340
- Nevada State Route 340
- New York State Route 340
- Ohio State Route 340
- Pennsylvania Route 340
- Texas:
- Wyoming Highway 340
Preceded by 339 |
Lists of highways 340 |
Succeeded by 341 |