INTERSTATE 91


'Interstate 91' (abbreviated 'I-91') is an interstate highway in the New England section of the United States. This interstate's southern end is in New Haven, Connecticut (map) at Interstate 95; its northern end is at Derby Line, Vermont, a village in the town of Derby, at the Canadian border, where it continues as Autoroute 55. The major cities along its route are New Haven and Hartford, Connecticut, and Springfield, Massachusetts.
Interstate 91 is 290 miles (467 km) long and runs nearly straight north and south through the U.S. states of Connecticut (for 58 miles, 93 km), Massachusetts (for 55 miles, 89 km) and Vermont (for 177 miles, 285 km). (The net distance as the crow flies is 259 miles (417 km), and the net direction is 9.0 degrees clockwise from north or south, i.e. northeast by north or southwest by south.)

Contents
Route description
Connecticut
Massachusetts
Vermont
History
Exit list
Connecticut
Massachusetts
Vermont
Auxiliary routes
References

Route description


Major cities
'Bolded cities' are officially-designated control cities for signs

★ 'New Haven, Connecticut'
★ 'Hartford, Connecticut'
★ 'Springfield, Massachusetts'
★ Greenfield, Massachusetts
★ 'Brattleboro, Vermont'
★ 'White River Junction, Vermont'
★ 'St. Johnsbury, Vermont'
★ 'Newport, Vermont'
★ 'Sherbrooke, Quebec'

Connecticut

Massachusetts

I-91 has an HOV Lane between Hartford and Windsor

I-91 looking northbound, at Exit 1, Brattleboro

Vermont

The highest point on the road is just north of mile marker 150 in Vermont, 1856 feet.

History


In the 1970s there were plans to extend I-91 across the Long Island Sound from New Haven, Connecticut to Long Island in New York. The extension would continue south to the southern shore of the island perhaps along the route of the current William Floyd Parkway in central Suffolk County. It would also provide easier access to New York City via Long Island Expressway, as well as the Hamptons via Sunrise Highway (NY-27).

Exit list


Connecticut

TownExit #MileDestinationsNotes
New Haven0.0
I-95 South – To New York City		southbound only
10.2
Route 34 – Downtown New Haven		southbound only
0.4
I-95 North – To New London		southbound only
20.6Hamilton StreetThe northbound exit is accessible only from the southbound lanes of I-95.
31.0Trumbull Street
41.3State Streetsouthbound only
51.4
US 5 (State Street) – Fair Haven		northbound only
61.7
US 5, Willow Street, Blatchley Avenue
72.1Ferry Street – Fair Havensouthbound only
82.8
Route 17 (Middletown Avenue), Route 80 – North Branford
North Haven94.8Montowese Avenue
106.6
Route 40 – Hamden, Mt. Carmel (SB), Cheshire (NB)
117.6
Route 22 – North Haven		northbound only
128.6
US 5 (Washington Avenue)
Wallingford1310.9
US 5 – Wallingford, North Haven
1412.3 (NB)
13.2 (SB)
Route 150 (Woodhouse Avenue) (NB), East Center Street (SB) – Wallingford
1516.0
Route 68 – Yalesville, Durham
Meriden1618.7East Main Streetnorthbound only
1718.9 (NB)
19.7 (SB)		NB:
North Route 15 (Berlin Turnpike) To
I-691, Route 66----SB:
South Route 15 (Wilbur Cross Parkway), East Main Street
1820.1NB:
Route 66 – Middlefield, Middletown----SB:
I-691 – Meriden, Waterbury
1921.0Baldwin Avenue, Preston Avenuesouthbound only
Middletown2023.2Country Club Road, Middle Street
Cromwell2125.7
Route 372 – Cromwell, Berlin
2227.4
Route 9 – New Britain, Middletown, Old Saybrook (SB)		split southbound into 22N and 22S
Rocky Hill2329.4
Route 3, West Street – Rocky Hill
2431.7
Route 99 – Rocky Hill, Wethersfield
Wethersfield2533.7
Route 3 – Glastonbury, Wethersfield (SB), Old Wethersfield (NB)		split southbound into 25N and 25S
2634.3Old Wethersfieldsouthbound only
Hartford2735.6Brainard Road, Airport Road – Brainard Airportnorthbound only
2835.9
South US 5/Route 15 (Berlin Turnpike) – Newington, Wethersfield
2736.5Airport Road, Brainard Road – Brainard Airportsouthbound only
2936.8
North US 5/Route 15 To
I-84 East – East Hartford, Boston		northbound only
29A37.7Capitol AreaWhitehead Highway
3038.4
East I-84/Route 2 – East Hartford, New London		southbound only; same interchange as Exit 31
3138.4State Streetsouthbound only; same interchange as Exit 30
32AB38.5A:
I-84 West – Waterbury----B: Trumbull Street
3339.9Jennings Road
Windsor3441.1
Route 159 (Windsor Avenue), North Main Street
35AB42.2A:
I-291 – Manchester----B:
Route 218 – Windsor, Bloomfield
3643.5
Route 178 (Park Avenue) – Bloomfield
3744.5
Route 305 (Bloomfield Avenue) – Windsor Center
3846.0
Route 75 – Poquonock, Windsor		split southbound into 38A and 38B
39 & 4147.2Kennedy Road, Center Streetnorthbound only
4048.2
Route 20 – Bradley International Airport
Windsor Locks39 & 4148.9Center Streetsouthbound only
4249.6
Route 159 – Windsor Locks
Connecticut River crossing on the Dexter Coffin Bridge
East Windsor4450.3
US 5 – East Windsor
4551.1
Route 140 – Warehouse Point, Ellington
Enfield4652.7
US 5 (King Street)
4755.6
Route 190 – East: Hazardville, Somers; West:Suffield		split into 47E and 47W
4856.1
Route 220 (Elm Street) – Thompsonville
4957.7
US 5 (Enfield Street) – Longmeadow MA
58.00[1]CT-MA state line

Massachusetts

TownExit #MileDestinationsNotes
Longmeadow0.0CT-MA state line
Springfield13.6
US 5 South – Forest Park, Longmeadow		Southbound exit only
US 5 joins northbound and leaves southbound
23.9
Route 83 – Forest Park, East Longmeadow		northbound exit only
34.2
US 5 North To
Route 57, Columbus Avenue (NB) – West Springfield (NB), Agawam (SB)		US 5 leaves northbound and joins southbound
44.6
Route 83, Main Street – East Longmeadow		southbound only
54.9Broad Streetnorthbound only
Formerly northbound Exit 4
65.3Springfield Center (NB)
Union Street (SB)		Old Exit 5 merged with Exit 6
75.9Columbus Avenue – Springfield Centersouthbound only
86.6
I-291/US 20 East to
I-90/Mass Pike East
97.0
US 20 West, Route 20A East – West Springfield		northbound only
107.2Main Street – Chicopee, North Springfieldnorthbound only
117.5
US 20 West, Birnie Avenue – West Springfield		southbound only
Chicopee128.3
I-391 – Chicopee, Holyoke Center (NB)
Connecticut River crossing
West Springfield139.2
US 5 (Riverdale Street) – West Springfield		split into 13N and 13S
1411.5
I-90/Mass Pike – Boston, Albany NY
Holyoke1512.7Lower Westfield Road – Ingleside
1614.5
US 202 – Holyoke, South Hadley, Westfield (SB)
1715.2
Route 141 – Holyoke Center, Easthampton		split into 17A and 17B northbound
Northampton1822.8
US 5 – Northampton, Easthampton (SB)
1924.7
Route 9 – Northampton, Amherst		northbound only
2025.7
US 5, Route 9, Route 10 – Northampton, Hadley		southbound only
2127.3
US 5/Route 10 – Hatfield, Whately (NB)
Hatfield2229.8
US 5/Route 10 – Whately, North Hatfield		northbound only
Whately2333.4
US 5/Route 10 – Whately, North Hatfield		southbound only
2435.0
US 5/Route 10 – Deerfield, Whately (SB)
Deerfield2536.2
Route 116 – Deerfield, Conway		southbound only
Greenfield2642.9
Route 2 West, Route 2A East – Greenfield Center, North Adams
2746.1
Route 2 East – Boston
Bernardston2850.4
Route 10 – Bernardston, Northfield		split into 28A and 28B northbound
54.90[2]MA-VT state line

Vermont

CountyLocationMile#DestinationsNotes
WindhamGuilford0.0MA-VT stateline
Brattleboro7.51
US 5 – Brattleboro
8.72
VT Route 9 West – Brattleboro, Bennington
11.63
US 5, VT Route 9 East – Brattleboro, Keene NH
Dummerston18.24
US 5 – Putney
Westminster28.65
US 5 to
VT Route 121 – Westminster, Bellows Falls, Walpole NH		To
NH Route 123
Rockingham35.26
US 5, VT Route 103 – Rockingham, Rutland (NB), Bellows Falls (SB)
WindsorSpringfield41.77
US 5, VT Route 11, VT Route 106 – Springfield
Weathersfield51.48
US 5, VT Route 12, VT Route 131 – Ascutney, Windsor
Hartland60.49
US 5, VT Route 12 – Windsor, Hartland
Hartford69.810
I-89 – South: Airport, New Hampshire; North: Barre, Montpelier		split into 10S and 10N
70.211
US 5 – White River Junction
72.012
US 5 – Wilder, White River Junction (SB)
Norwich74.813
US 5, VT Route 10A – Norwich, Hanover NH
OrangeThetford84.214
VT Route 113 To
US 5 – Thetford
Fairlee91.515
US 5 – Fairlee, Orford NH
Bradford97.616
VT Route 25 To
US 5 – Bradford, Barre (NB)
Newbury110.317
US 302 To
US 5 – Wells River, Woodsville NH
CaledoniaBarnet120.418To
US 5 – Barnet, Peecham
Waterford128.219
I-93 – Littleton NH
St. Johnsbury128.920
US 5 To
US 2 East – St. Johnsbury, Passumpsic (SB)
130.621
US 2 To
VT Route 15 – St. Johnsbury, Montpelier
132.622To
US 5 – St. Johnsbury
Lyndon137.123
US 5 To
VT Route 114 – Lyndonville, Burke (NB)
139.924
VT Route 122 To
VT Route 114 – NB: Wheelock, Sheffield; SB: Burke, Lyndonville, Lyndon Center
OrleansBarton156.025
VT Route 16 – Barton, Hardwick (SB)
161.426
US 5, VT Route 58 – Orleans, Irasburg
Derby170.127
VT Route 191 To
US 5, VT Route 105 – Newport
172.428
US 5, VT Route 105 – Newport, Derby Center
177.429To
US 5 – Derby Line
177.43[3]Continues into Canada as
''Autoroute 55''

Auxiliary routes


References


1. ConnDOT Highway Log
2. MassGIS EOT-OTP Roads data layer
3. VTrans Traffic Log


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