Editing Interstate 91 (section)

=== Vermont ===
I-91 traverses the entire length of [[Vermont]] and serves as a major transportation corridor for eastern Vermont and western [[New Hampshire]]. Due to its routing along the Connecticut River separating the two states, many exits along Vermont's length of I-91 feature New Hampshire towns on the guide signs (for example, exit&nbsp;3, which lists [[Brattleboro, Vermont|Brattleboro]] and [[Keene, New Hampshire]], as the points of access). The length of I-91 within Vermont is {{convert|177|mi|km}} and has two lanes in each direction the entire way from the Massachusetts state line to the Canada–United States border (nearly two-thirds of I-91's length) with 29 Vermont interchanges. The highway's rural character and long distances between exits in Vermont are in stark contrast to its south, where exits are more frequent and the road carries four lanes of traffic in each direction at some points. The major control cities in Vermont are Brattleboro, [[White River Junction, Vermont|White River Junction]], [[St. Johnsbury, Vermont|St. Johnsbury]], and [[Newport (city), Vermont|Newport]]. When entering northbound I-91 at exit&nbsp;28 in [[Derby, Vermont|Derby]], the control city sign is for Canada. Of these destinations, only Newport is a city, although the other towns are sizable. In general, the road parallels its predecessor, US&nbsp;5.<ref>{{google maps |link = no |url=https://www.google.com/maps/dir/42.730126,-72.5698703/45.0058814,-72.0876317/@45.0062274,-72.0894927,17.96z|title=Interstate 91 in Vermont|access-date=August 13, 2019}}</ref><ref>{{cite book |last1 = Tree |first1 = Christina |last2 = Foulds |first2 = Diane E. |title = Explorer's Guide Vermont |date = 2009 |publisher = The Countryman Press |isbn = 9780881508482 |url = https://books.google.com/books?id=MvkoQmVCQlMC&pg=PA238 |access-date = 17 August 2019 |language = en |archive-date = January 14, 2023 |archive-url = https://web.archive.org/web/20230114200615/https://books.google.com/books?id=MvkoQmVCQlMC&pg=PA238 |url-status = live }}</ref><ref>{{cite book |last1 = Tree |first1 = Christina |last2 = Hamm |first2 = Christine |last3 = Imbrie |first3 = Katherine |title = Explorer's Guide New Hampshire |date = 2010 |publisher = The Countryman Press |isbn = 9780881508413 |url = https://books.google.com/books?id=QpvEeOtVBXsC&pg=PA194 |access-date = 17 August 2019 |language = en |archive-date = January 14, 2023 |archive-url = https://web.archive.org/web/20230114200615/https://books.google.com/books?id=QpvEeOtVBXsC&pg=PA194 |url-status = live }}</ref>

I-91 enters Vermont in the town of Guilford. Just before exit&nbsp;1 in Brattleboro is the Vermont Welcome Center in Guilford. The first three Vermont exits (northbound) serve the town of Brattleboro. At exit&nbsp;1, northbound US&nbsp;5 provides access to stores and a small industrial area before reaching the south end of the town's center, where a bridge crosses the Connecticut River into [[Hinsdale, New Hampshire]], via [[New Hampshire Route 119|New Hampshire Route&nbsp;119]] (NH&nbsp;119). Exit&nbsp;2 ([[Vermont Route 9|Vermont Route&nbsp;9]] [VT&nbsp;9]) provides access to the western village of the town ([[West Brattleboro, Vermont|West Brattleboro]]), then continues west to [[Marlboro, Vermont|Marlboro]], [[Wilmington, Vermont|Wilmington]], and [[Bennington, Vermont|Bennington]]. Brattleboro's main retail strip is located at and just south of the exit&nbsp;3 [[trumpet interchange]] and [[traffic circle]]. Following VT&nbsp;9 eastward, one can reach Keene, New Hampshire, in {{convert|15|mi|km}}.<ref>{{google maps |link = no |url=https://www.google.com/maps/dir/42.7301196,-72.5698914/42.8877316,-72.5574336/@42.8392807,-72.6087066,11.03z|title=Vermont Border to Franklin Pierce Highway|access-date=August 13, 2019}}</ref><ref name="ma"/>

After exit&nbsp;3, I-91 heads north to travel through the communities of [[Dummerston, Vermont|Dummerston]], [[Putney, Vermont|Putney]], [[Westminster (town), Vermont|Westminster]], [[North Westminster, Vermont|North Westminster]], [[Bellows Falls, Vermont|Bellows Falls]], [[Springfield, Vermont|Springfield]], [[Weathersfield, Vermont|Weathersfield]], [[Windsor, Vermont|Windsor]], [[Hartland, Vermont|Hartland]], [[North Hartland, Vermont|North Hartland]] and White River Junction. White River Junction, listed as a control city on mileage signs as far south as [[Greenfield, Massachusetts]], is where I-91 and [[Interstate 89|I-89]] meet and provide access to many points in Vermont and New Hampshire, at exit&nbsp;10.<ref>{{google maps |link = no |title=I-91 to I-91 |url=https://www.google.com/maps/dir/42.886515,-72.5584131/43.6324333,-72.3396066/@43.2591536,-73.0094103,172372m/data=!3m2!1e3!4b1!4m2!4m1!3e0 |access-date=August 15, 2018}}</ref>

North of the interchange with I-89, I-91 continues toward St. Johnsbury and travels through [[Wilder, Vermont|Wilder]] and [[Norwich, Vermont|Norwich]]. It enters [[Orange County, Vermont|Orange County]], passing through [[Thetford, Vermont|Thetford]], [[Fairlee, Vermont|Fairlee]], [[Bradford, Vermont|Bradford]], [[Newbury (village), Vermont|Newbury]], and [[Wells River, Vermont|Wells River]]. It continues into the [[Caledonia County, Vermont|Caledonia County]] communities of [[Ryegate, Vermont|Ryegate]], [[Barnet, Vermont|Barnet]] and [[Waterford, Vermont|Waterford]], before coming to its next major intersection in St. Johnsbury at the northern terminus of [[Interstate 93|I-93]], providing access to the [[White Mountains (New Hampshire)|White Mountains]] of New Hampshire and the [[Greater Boston]] area. Along this stretch of highway between White River Junction and St. Johnsbury, towns in [[Grafton County, New Hampshire]], on the other side of the river can also be easily accessed. Just after exit&nbsp;19, there are three exits for St. Johnsbury, including a major intersection with [[U.S. Route 2|US&nbsp;2]]. Along westbound US&nbsp;2, the capital of Vermont, [[Montpelier, Vermont|Montpelier]], is eventually reached from I-91, although I-89 provides Montpelier with immediate Interstate access.<ref>{{cite book |last1 = Halvorsen |first1 = Lisa |last2 = O'Brien |first2 = Pat Goudey |last3 = Tree |first3 = Christina |title = Explorer's Guide Vermont |date = 2018 |publisher = The Countryman Press |isbn = 9781682681671 |url = https://books.google.com/books?id=HA1rDwAAQBAJ&pg=PT219 |access-date = 17 August 2019 |language = en |edition = Fifteenth |archive-date = January 14, 2023 |archive-url = https://web.archive.org/web/20230114200615/https://books.google.com/books?id=HA1rDwAAQBAJ&pg=PT219 |url-status = live }}</ref><ref>{{google maps |link = no |url=https://www.google.com/maps/dir/43.6427089,-72.3381545/44.4314426,-72.0341872/@44.0948183,-72.4280079,9.95z/data=!4m2!4m1!3e0|title=White River Junction to St. Johnsbury|access-date=August 13, 2019}}</ref>

I-91 continues northward, now following the [[Passumpsic River]] valley. It travels through Vermont's [[Northeast Kingdom]] region and the town of [[Lyndon, Vermont|Lyndon]]. Two exits in Lyndon serve the village of [[Lyndonville, Vermont|Lyndonville]] and [[Lyndon State College]]. After exit&nbsp;24, I-91 departs US&nbsp;5, which it had been closely paralleling since the Massachusetts state line. I-91 follows the valley of Miller Run,<ref>{{cite web |title = Passumpsic River Valley |url = http://dec.vermont.gov/sites/dec/files/documents/WSMD_mp_Passumpsicassessmntrpt_Jun2009.pdf |access-date = August 10, 2018 |website = dec.vermont.gov |publisher = Vermont Department of Environmental Conservation |archive-date = May 15, 2017 |archive-url = https://web.archive.org/web/20170515002924/http://dec.vermont.gov/sites/dec/files/documents/WSMD_mp_Passumpsicassessmntrpt_Jun2009.pdf |url-status = live }}</ref><ref group=lower-alpha>Miller Run feeds southeast into the Passumpsic River.</ref> and there are no convenient services until Barton at exit&nbsp;25.<ref>{{cite web |title = Trucker's Exit Guide to Interstate 91 |url = http://www.truckerguide.com/assets/vermonti-91.pdf |website = truckerguide.com |publisher = Trucker Guide Inc. |access-date = August 10, 2018 |archive-date = June 26, 2015 |archive-url = https://web.archive.org/web/20150626224106/http://www.truckerguide.com/assets/vermonti-91.pdf |url-status = dead }}</ref>

The Interstate proceeds through [[Sheffield, Vermont|Sheffield]]. Here, it reaches the highest point on the road, just north of milemarker&nbsp;150 on Sheffield Heights, elevation {{convert|1856|ft|m}}.<ref>{{cite web |title = Highest Elevation on I-91 - Sheffield, Vermont - Elevation Signs on Waymarking.com |url = http://www.waymarking.com/waymarks/WM42KD_Highest_Elevation_on_I_91_Sheffield_Vermont |website = www.waymarking.com |publisher = Waymarking |access-date = August 15, 2018 |language = en |archive-date = August 16, 2018 |archive-url = https://web.archive.org/web/20180816025516/http://www.waymarking.com/waymarks/WM42KD_Highest_Elevation_on_I_91_Sheffield_Vermont |url-status = live }}</ref>

After leaving Sheffield Heights, it enters [[Orleans County, Vermont|Orleans County]] and follows the [[Barton River (Vermont)|Barton River]] valley north with exits in [[Barton, Vermont|Barton]], [[Orleans, Vermont|Orleans]], and [[Derby, Vermont|Derby]]. Exit&nbsp;29 is the final US exit on I-91 just after milemarker&nbsp;177 at Derby Line. Beyond the exit ramp, northbound motorists enter [[Canada Customs]] at [[Stanstead, Quebec]], and continue into Canada on [[Quebec Autoroute 55]] through the [[Eastern Townships]].<ref>{{google maps |link = no |title=I-91 to 1 Autoroute 55 |url=https://www.google.com/maps/dir/44.7327932,-72.1804657/45.0058392,-72.0877147/@45.0029532,-72.0893038,702m/data=!3m1!1e3!4m2!4m1!3e0 |access-date=August 15, 2018 }}</ref><ref name="ma">{{cite web |title = Vermont I-91 Exits |url = http://vtransmaps.vermont.gov/staticmaps/VermontExits.pdf |website = vtransmaps.vermont.gov |publisher = Vermont Transportation |access-date = August 15, 2018 |archive-date = May 19, 2017 |archive-url = https://web.archive.org/web/20170519135023/http://vtransmaps.vermont.gov/staticMaps/VermontExits.pdf |url-status = live }}</ref>

As with Connecticut and Massachusetts, US&nbsp;5 closely parallels I-91 for their entire lengths in Vermont. While paralleling I-91 in Vermont, US&nbsp;5 is never concurrent with the freeway but remains its own two-lane road, except for a portion in White River Junction where it is a four-lane divided surface arterial.<ref>{{cite book |last1 = Stallings |first1 = Doug  |title = Fodor's Where to Weekend Around Boston, 1st Edition |date = 2004 |publisher = Fodor's Travel Publications |isbn = 9781400013012 |page = 197 |url = https://books.google.com/books?id=JZM4nng7cr0C&pg=PA197 |access-date = August 15, 2018 |language = en |archive-date = January 14, 2023 |archive-url = https://web.archive.org/web/20230114200617/https://books.google.com/books?id=JZM4nng7cr0C&pg=PA197 |url-status = live }}</ref><ref>{{google maps |link = no |title=I-91 to 1 Autoroute 55 Route 5 Parallel |url=https://www.google.com/maps/dir/42.7301409,-72.5698151/45.0058777,-72.0877435/@45.0048327,-72.090154,554m/data=!3m1!1e3!4m2!4m1!3e0|access-date=August 15, 2018}}</ref>

Traffic and the population of each successive town tend to diminish as the road proceeds northward. The average daily traffic count for 2015 in Vermont were—St. Johnsbury (34,000), Lyndon (17,900), Barton (13,500), and Derby (Canada–United States border) (10,300).<ref name="AA-IG">{{cite web |url = http://vtrans.vermont.gov/sites/aot/files/planning/documents/trafficresearch/FinalWebRev.pdf |title = Interstate 91 Traffic Statistics |website = vtrans.vermont.gov |publisher = Vermont Agency of Transportation |access-date = August 12, 2018 |archive-date = August 15, 2018 |archive-url = https://web.archive.org/web/20180815232849/http://vtrans.vermont.gov/sites/aot/files/planning/documents/trafficresearch/FinalWebRev.pdf |url-status = live }}</ref><gallery mode="packed" widths="245" heights="175" perrow="4" caption="Interstate 91">
File:Yale University I-91.jpg|alt=A series of highway ramps with multiple cars on them. A body of water is next to them, and they are surrounded by buildings.|The beginning of I-91 in [[New Haven, Connecticut]]
File:2016-09-03 08 43 40 View north along Interstate 91 at Exit 32 (Trumball Street-Interstate 84) in Hartford, Hartford County, Connecticut.jpg|I-91 north at exit&nbsp;32 (I-84 west) in [[Hartford, Connecticut]]
File:I91 Connecticut.jpg|alt=Both sides of a highway with a grass plot in the middle of the roads. Street lamps surround the middle, and several cars are on the roads. The roads have an HOV diamond on them.|I-91 has an [[HOV lane]] between [[Hartford, Connecticut|Hartford]] and [[Windsor, Connecticut|Windsor]], [[Connecticut]].
File:I-91-Vermont.JPG|alt=A four-lane highway in snowy weather, curving left with several cars on it. An exit sign and mountains are in the distance.|I-91 looking northbound in [[Brattleboro, Vermont]]
File:I91 rockingham vt 20081220.jpg|alt=A snowy highway road that is icy and looking toward forests and mountains.|Northbound I-91 just north of exit&nbsp;6 in [[Rockingham, Vermont]]
File:I-91 in Wheelock VT.jpg|alt=A four-lane highway in the woods looking toward mountains on a sunny day.|Southbound I-91 in [[Wheelock, Vermont]]
</gallery>