Vermont Route 100

Vermont Route 100
SPUI · Public domain · source
State	VT
Type	VT
Route	100
Length mi	216.666
Direction a	South
Terminus a	Massachusetts
Direction b	North
Terminus b	Canadian border
Counties	Windham County, Bennington County, Rutland County, Windsor County, Lamoille County, Orleans County

Vermont Route 100 Vermont Route 100 is a north–south state highway running nearly the full length of Vermont from the Massachusetts state line to the Canadian border. The roadway parallels the crest of the Green Mountains and connects a string of towns including Brattleboro, Ludlow, Warren, Stowe, and Newport. The route serves as a primary corridor for local access, tourism associated with skiing and leaf peeping, and links to multiple state and federal highways such as Interstate 91, U.S. Route 7, and U.S. Route 5.

Route description

Route 100 traverses diverse terrain from the Connecticut River valley near Brattleboro through the highlands of the Green Mountain National Forest and the Mad River Valley to the shores of Lake Memphremagog at Newport. South of Manchester, the route intersects U.S. Route 7 and provides access to destinations like Stratton Mountain and Mount Snow via connecting routes. Between Ludlow and Warren the highway runs adjacent to the Black River and historic villages such as Jacksonville, while farther north it parallels the Little River and provides access to Sugarbush Resort and Mad River Glen. Approaching Stowe the roadway climbs toward passes that historically link to Montpelier via state highways and connects with Interstate 89 through short links. In the northeast, Route 100 descends to Newport where it meets U.S. Route 5 and approaches the Canada–United States border near North Troy.

History

The corridor that became Route 100 followed indigenous trails and early colonial roads used for trade between Boston and Quebec City. During the 19th century the route shadowed turnpikes and stage routes that served Bennington and Windsor and connected to Montreal via lake and overland stages. In the early 20th century state highway initiatives mirrored contemporaneous work on U.S. Route 7 and New England Route 9; Route 100 was designated as part of Vermont's numbered system amid reforms inspired by the Good Roads Movement and federal highway funding patterns. Post-World War II tourism growth, spurred by resorts like Stowe Mountain Resort and Killington Ski Resort, led to incremental improvements, bridge replacements influenced by design standards from agencies such as the New York State Department of Transportation and Federal Highway Administration, and rerouting around flood-damaged segments following storms including the impacts recorded after Hurricane Irene.

Major intersections

Route 100 intersects or connects with major arteries that facilitate regional movement: it meets Interstate 91 via connector roads near Brattleboro; crosses U.S. Route 7 near Manchester; links with Vermont Route 103 close to Ludlow; provides access to Vermont Route 125 in the Mad River Valley; intersects Interstate 89 via state routes toward Montpelier; and terminates near U.S. Route 5 and international crossings serving Newport and North Troy. These intersections allow movements between long-distance corridors such as U.S. Route 2 and U.S. Route 4, and connect to scenic byways like the Green Mountain Byway.

Related routes and spur routes

Several auxiliary and parallel routes provide alternate access and local circulation. Notable connectors include spur links to Vermont Route 12 and Vermont Route 30 that serve villages like Wilmington and Manchester Center. Shorter state-designated spurs and town highways tie Route 100 to ski areas such as Killington and Stratton Mountain, and to towns on Lake Champlain via routes toward Burlington. Historic alignments and reclassified segments have resulted in multiple signed and unsigned suffixed routes administered by the Vermont Agency of Transportation.

Scenic and recreational significance

The highway is central to seasonal tourism, forming a spine for fall foliage viewing routes that draw visitors from Boston, New York City, Montreal, and Quebec City. Resorts along or near the corridor—Stowe Mountain Resort, Sugarbush, Mad River Glen, Okemo Mountain Resort, and Killington—anchor winter recreational economies, while summer and autumn activities include hiking on trails that link to the Long Trail and Appalachian Trail approaches, mountain biking in the Green Mountains, fishing in rivers like the Winooski River, and boating on Lake Champlain and Lake Memphremagog. Cultural sites such as the Marsh-Billings-Rockefeller National Historical Park and events like town fairs in Woodstock and Stowe Festival further emphasize the route's role in heritage tourism.

Traffic, maintenance, and safety

Traffic volumes vary from low rural counts in northern counties like Orleans County to higher seasonal peaks near Stowe and Killington during ski seasons, influenced by travel from metropolitan areas including New York City, Montreal, and Boston. Maintenance responsibilities fall under the Vermont Agency of Transportation, which schedules winter snow removal, bridge inspections, and pavement rehabilitation; FEMA recovery funds have been used after severe flooding events tied to storms such as Hurricane Irene. Safety initiatives include speed management through town centers like Warren and infrastructure upgrades at high-crash intersections near Ludlow and Waterbury. Ongoing planning coordinates with county officials in Rutland County and Lamoille County to balance local mobility, tourism demand, and resiliency against extreme weather.

Category:State highways in Vermont