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Vermont Route 18

Vermont Route 18 marker

Vermont Route 18
Map of Caledonia County in eastern Vermont with VT 18 highlighted in red
Route information
Maintained by VTrans
Length: 7.887 mi (12.693 km)
Existed: 1922 – present
Major junctions
South end: NH 18 at Littleton, NH
  I-93 in St. Johnsbury
North end: US 2 in St. Johnsbury
Location
Counties: Caledonia
Highway system

State highways in Vermont

VT 17 VT 19

Vermont Route 18 marker

State highways in Vermont

Vermont Route 18 is a state highway in Caledonia County, Vermont, United States. It runs southeast from the town of St. Johnsbury to the New Hampshire state line, continuing there as New Hampshire Route 18. The route parallels Interstate 93 and is a former routing of the Theodore Roosevelt International Highway.

Vermont Route 18 begins at the New Hampshire state line between Littleton and Waterford. After crossing the Connecticut River into Vermont, VT 18 veers westward to cross under I-93 into Lower Waterford village. VT 18 then continues northwest running closely parallel to I-93 on its west side for roughly 7 miles (11 km) until Stiles Pond. Just north of the pond, I-93 changes direction from northwest to southwest. VT 18 crosses under I-93 at this point with an interchange at Exit 1 (the only numbered exit on I-93 in Vermont). Soon after the I-93 junction, VT 18 ends at U.S. Route 2 about 0.25 miles (0.40 km) past the St. Johnsbury town line. US 2 continues into the town center. VT 18 is part of the Connecticut River Byway.


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