Interstate 93 runs from Boston to St. Johnsbury and, along with the northern stretch of I-91, forms the corridor between Boston, Concord NH, and Canada. It was built in Vermont in 1983 and was the last interstate to be built in the state.
| Mile | Northbound | Southbound | Notes |
|---|---|---|---|
| 0.0 | Vermont Caledonia County |
New Hampshire Grafton County |
|
| Speed Limit 65 Minimum 40 |
Speed Limit 70 Minimum 45 |
||
| 1.3 | Waterford Rest Area | ||
| 7.5 | Exit 1 St. Johnsbury |
Exit 1 St. Johnsbury Lower Waterford |
Milepoint exit 7 |
| 11.1 | Left White River Junction |
Milepoint exit 11A | |
| 11.1 | St. Johnsbury |
Milepoint exit 11B | |
| Speed Limit 65 Minimum 40 |
|||
| Caledonia County | |||