US 302 highlighted in red
|Auxiliary route of US 2|
|Length||171 mi (275 km)|
|Existed||1935[ citation needed]–present|
|West end||US 2 in Montpelier, VT|
|East end||I‑295 / US 1 / SR 100 in Portland, ME|
|States||Vermont, New Hampshire, Maine|
U.S. Route 302 (US 302) is an east–west spur of U.S. Route 2 in northern New England in the United States. It currently runs 171 miles (275 km) from Montpelier, Vermont, at US 2, to Portland, Maine, at U.S. Route 1. It passes through the states of Vermont, New Hampshire and Maine.
|mi  ||km|
This section needs expansion. You can help by adding to it. (May 2013)
US 302 enters Vermont after crossing the Connecticut River at the village of Wells River. The highway crosses US 5 in the center of the village. The next major intersection for US 302 is its intersection with Interstate 91 in Newbury, about 2.7 miles (4.3 km) from the US 5 intersection. US 302 then winds through the rural towns of Ryegate, Groton, Topsham, and Orange, before entering East Barre. In East Barre, its intersection with Vermont Route 110 takes the form of a roundabout. After traveling down out of the hills surrounding the city of Barre, US 302 makes up Washington Street and North Main Street of Barre. It runs along the Jail Branch River and the Stevens Branch of the Winooski River in Barre, then through Berlin, finally terminating at its US 2 intersection in southeast Montpelier.
US 302 enters the state of New Hampshire at a two-lane arch bridge over the Connecticut River beginning in Wells River, Vermont. It follows Central Street on a two-lane alignment, passing through Woodsville until it reaches NH 10 (Dartmouth College Highway), where it turns eastward.
US 302 follows the Ammonoosuc River through a mix of fields and forested land, passing through Bath as Lisbon Road and Lisbon as its Main Street. As it approaches Littleton, the road's name changes to Meadow Street and becomes a shopping strip just before crossing the river and interchanging with I-93. After a short stretch, the road meets Main Street ( NH18) at a skewed intersection, defaulting onto Main Street and passing through the town's downtown.
The route intersects NH 116 and turns southward onto Cottage Street, immediately bridging the Ammonoosuc River once again, and passes through a residential area before turning eastward onto Bethlehem Road. The route passes under Interstate 93 again and passes through woodland, where it crosses I-93 for a third time at a second interchange, where NH 18 and NH 116 also depart to the south. US 302 then travels eastward through largely forested land, passing through Bethlehem and Twin Mountain (where it crosses U.S. Route 3), then turns southward as it passes through Crawford Notch State Park, bearing Crawford Notch Road as its name and paralleling the Saco River.
After turning eastward again, passing through Bartlett and intersecting NH 16, the road becomes White Mountain Highway and turns southward once more, passing Lower Bartlett and entering North Conway. The route follows Eastman Road south of North Conway, which it follows to its end at NH 113 (Main Street) after bridging the Saco River once again. US 302 turns east, passing through more forested land as it crosses the Maine state border, bound for Fryeburg a short stretch east of there.
US 302 is known as the Roosevelt Trail through southern Maine because it was the beginning of the Theodore Roosevelt International Highway to Portland, Oregon.   It is a two-lane highway for almost all of its length, but there are multi-lane sections within the Portland area, as well as short four-lane sections in and around North Windham (especially the commercial areas). Some of the hilly sections also feature a third passing lane.
The highway enters Maine at Fryeburg, in the Saco River valley as it leaves the White Mountains. The road bridges the Saco near milepost 56 in eastern Fryeburg, Moose Pond near milepost 46 in Bridgton, Long Lake near milepost 31 in Naples, and the Crooked River in Casco near a boyhood home of Nathaniel Hawthorne. The highway passes the north end of Jordan Bay on Sebago Lake in the town of Raymond, and crosses the Pleasant River at milepost 13.4 in Windham. US 302 bridges the Presumpscot River from Westbrook into Portland at Riverton, then reaches its eastern terminus at I-295/ US 1 at the south end of Back Cove. 
The eastern end of US 302 was formerly at Longfellow Square in Portland, Maine. The highway follows a 19th-century stagecoach road from Portland through Windham to Bridgton. The portion from Windham to Bridgton was built about 1785. Stagecoach service began in 1803, and the route became a post road for the United States Postal Service in 1814. Transportation over this route was augmented by the Cumberland and Oxford Canal from 1832 to 1932, and by the Bridgton and Saco River Railroad from 1883 to 1941.  The highway through Crawford Notch follows the Tenth New Hampshire Turnpike built in 1803 and parallels the Maine Central Railroad Mountain Division built in 1877. The highway eliminated railway passenger travel over the route from Portland by 1958, and railroad freight service through Crawford Notch was discontinued in 1983. 
|Location||Conway, NH— Portland|
|Length||54.18 mi (87.19 km)|
From 1922 until 1935, much of what is now US 302 was a part of the New England road marking system, designated as Route 18, from Portland, Maine, northwest to Littleton, New Hampshire, roughly 112 miles (180 km). From Littleton west to Montpelier in Vermont, US 302 and Route 18 took different paths. NE-18 took a more northerly route, along present-day New Hampshire Route 18 and Vermont Route 18 to St. Johnsbury, Vermont (closely paralleling I-93), then along present-day US 2 up to Montpelier.
Current US 302 runs along a more southerly route using other former sections of New England Interstate Routes. From Littleton, it went along former Route 10 to Woodsville, New Hampshire, then along former Route 25 to Montpelier.
The entire Maine segment of US 302 was formerly designated State Route 18, a route that was established in 1926 until being deleted in 1935 by US 302.
|State||County||Location    ||mi    ||km||Destinations||Notes|
|Vermont||Washington||Montpelier||0.000||0.000||US 2 – East Montpelier, St. Johnsbury, Montpelier||Rotary; western terminus of US 302.|
|Berlin||1.059||1.704||Berlin State Highway to I-89 / VT 62 – Berlin Corners|
|City of Barre||4.376||7.042||
VT 14 north|
VT 62 west to I-89
|Western end of concurrency with VT 14; eastern terminus of VT 62.|
|4.833||7.778||VT 14 south to I-89 south||Eastern end of concurrency with VT 14.|
|Town of Barre||8.639||13.903||VT 110 south – Washington, Chelsea, Granite Quarries||Northern terminus of VT 110 at rotary.|
|Orange||Orange||16.041||25.815||VT 25 south – West Topsham, Bradford||Northern terminus of VT 25.|
|Caledonia||Groton||23.928||38.508||VT 232 north – Rickers Mills||Southern terminus of VT 232.|
|Orange||Town of Newbury||32.472–|
|I-91 – Bradford, White River Junction, Barnet, St. Johnsbury||Exit 17 on I-91.|
|35.334||56.865||US 5 north – St. Johnsbury||Western terminus of concurrency with US 5.|
|35.463||57.072||US 5 south – Newbury, Bradford||Eastern terminus of concurrency with US 5.|
|Vermont– New Hampshire state line|
|New Hampshire||Grafton||Haverhill||0.224||0.360||NH 135 (Woodsville Road / South Court Street) – Monroe||Village of Woodsville|
|1.245||2.004||NH 10 south (Dartmouth College Highway) – Hanover||Northern terminus of NH 10|
|Bath||3.812||6.135||NH 112 east (Wild Ammonoosuc Road) – Swiftwater, North Woodstock, Lincoln||Western terminus of NH 112|
|Lisbon||12.960||20.857||NH 117 east (Sugar Hill Road) – Sugar Hill, Franconia||Western terminus of NH 117|
|I‑93 (Styles Bridges Highway) – Bethlehem, Concord, Dalton, St. Johnsbury VT||Exit 42 on I-93|
|21.000||33.796||NH 18 north (West Main Street) to I‑93 north / NH 135 – Dalton, Monroe||Western end of concurrency with NH 18|
|21.556||34.691||NH 116 north (Union Street) – Whitefield||Western end of concurrency with NH 116|
|22.088||35.547||Cottage Street||To I‑93 – Woodsville, St. Johnsbury VT, Franconia, Bethlehem Exit 41|
|I‑93 (Styles Bridges Highway) – Franconia, Plymouth, Littleton, St. Johnsbury VT||Exit 40 on I-93; no eastbound access to I-93 north; no westbound access from I-93 south|
|23.857||38.394||NH 18 / NH 116 south (Profile Road) – Franconia||Eastern end of concurrency with NH 18 / NH 116|
|NH 142 (Agassiz Street / Maple Street) – Franconia, Whitefield|
|Coos||Carroll||34.796||55.999||US 3 (Daniel Webster Highway) – Whitefield, Lancaster, Plymouth||Village of Twin Mountain|
|Carroll||Bartlett||63.892||102.824||NH 16 north (Pinkham Notch Road) – Jackson, Gorham, Berlin||Western end of concurrency with NH 16; village of Glen|
|65.026||104.649||NH 16A south – Intervale||Northern terminus of NH 16A|
|67.299||108.307||NH 16A north (Intervale Resort Loop)||Southern terminus of NH 16A|
|Conway||71.981||115.842||NH 16 south (White Mountain Highway) – Conway||Eastern end of concurrency with NH 16; village of North Conway|
|74.522||119.932||NH 113 west (East Main Street) – Conway||Eastern terminus of NH 113|
|New Hampshire– Maine state line|
|Maine||Oxford||Fryeburg||1.15||1.85||SR 113 north – East Conway NH, Stow||Western end of concurrency with SR 113|
|1.37||2.20||SR 5 south / SR 113 south – Brownfield, Old Orchard Beach||Eastern end of concurrency with SR 113; western end of concurrency with SR 5|
|1.79||2.88||SR 5 north – Lovell||Eastern end of concurrency with SR 5|
|Cumberland||Bridgton||14.96||24.08||SR 93 north – Sweden, Lovell||Southern terminus of SR 93|
|16.86||27.13||SR 117 north – Norway||Western end of concurrency with SR 117|
|18.41||29.63||SR 117 south to SR 107 south – Denmark||Eastern end of concurrency with SR 117|
|Naples||24.94||40.14||SR 11 south / SR 114 south – Sebago Lake||Western end of concurrency with SR 11; northern terminus of SR 114|
|25.41||40.89||SR 35 north – Harrison, Waterford||Western end of concurrency with SR 35|
|26.30||42.33||SR 11 north – Mechanic Falls, Poland||Eastern end of concurrency with SR 11|
|Raymond||34.02||54.75||SR 121 north – Raymond Village, Casco||Southern terminus of SR 121|
|34.47||55.47||SR 85 north||Southern terminus of SR 85|
SR 35 south –
SR 115 east – Gray
|Eastern end of concurrency with SR 35|
Western terminus of SR 115
|41.73||67.16||US 202 / SR 4 – Gray||Rotary|
|Portland||51.74||83.27||SR 100 north (Allen Avenue) – Falmouth, Gray||Western end of concurrency with SR 100|
|52.99||85.28||SR 9 east (Ocean Avenue)||Western end of wrong-way concurrency with SR 9|
|53.08||85.42||SR 9 west (Woodford Street)||Eastern end of wrong-way concurrency with SR 9|
US 1 –
SR 100 south to SR 77 south
|Exit 6 on I-295|
Eastern terminus of US 302; eastern end of concurrency with SR 100
|1.000 mi = 1.609 km; 1.000 km = 0.621 mi|
- U.S. Route 302 Business (Bartlett, New Hampshire), a loop connecting US 302 to Lower Bartlett. It is locally known as the Intervale Resort Loop and is signed only as New Hampshire Route 16A.
- Traffic Research Unit (May 2013). "2012 (Route Log) AADTs for State Highways" (PDF). Policy, Planning and Intermodal Development Division, Vermont Agency of Transportation. Retrieved March 9, 2015.
- Bureau of Planning & Community Assistance (February 20, 2015). "NH Public Roads". Concord, New Hampshire: New Hampshire Department of Transportation. Retrieved April 7, 2015.
- "Vermont Named State Highways and Bridges" Archived 17 March 2012 at the Wayback Machine.. Vermont Department of Libraries. Retrieved May 21, 2012.
- Tracy, A.W. Theodore Roosevelt International Highway (1996) p.7
- "U.S. 2: Houlton, Maine, to Everett, Washington". United States Department of Transportation Federal Highway Administration. Retrieved 2011-09-05.
- Greaton, Everett F. Maine, a Guide "Down East" (1937) pp.375-381
- Jones, Robert C. Two Feet to the Lakes: The Bridgton & Saco River Railroad (1993) ISBN 0-915713-26-8 pp.12-13
- Johnson, Ron Maine Central Railroad Mountain Division p.9
- Bureau of Planning & Community Assistance (April 3, 2015).
"Nodal Reference 2015, State of New Hampshire".
New Hampshire Department of Transportation. Retrieved April 7, 2015.[
permanent dead link]
- Town of Haverhill, Grafton County[ permanent dead link]
- Town of Bath, Grafton County[ permanent dead link]
- Town of Lisbon, Grafton County[ permanent dead link]
- Town of Littleton, Grafton County[ permanent dead link]
- Town of Bethlehem, Grafton County[ permanent dead link]
- Town of Carroll, Coos County[ permanent dead link]
- Town of Bartlett, Carroll County[ permanent dead link]
- Town of Conway, Carroll County[ permanent dead link]
- "MaineDOT Public Map Viewer". Maine Department of Transportation. Retrieved April 8, 2017.
|Wikimedia Commons has media related to U.S. Route 302.|
|Browse numbered routes|
|← VT 289||VT||VT 313 →|
|← I‑293||NH||I‑393 →|
|← I‑295||ME||I‑395 →|
|← Route 17||N.E.||Route 19 →|
|← SR 17||ME||SR 22 →|