Information about I 91

Main route of the Interstate Highway System
Length:	290.33 mi (0 km)
South end:	I-95 in New Haven, CT
Major junctions:	I-84 in Hartford, CT I-90 near Springfield, MA I-89 in White River Junction, VT I-93 near St. Johnsbury, VT
North end:	A-55 at the Canadian Border at Derby Line, VT
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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.)

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

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

Town	Exit #	Mile	Destinations	Notes
New Haven		0.0	I-95 South – To New York City	Southbound junction only
	1	0.2	Route 34 – Downtown New Haven	Southbound junction only
		0.4	I-95 North – To New London	Southbound junction only
	2	0.6	Hamilton Street	The northbound exit is accessible only from the southbound lanes of I-95.
	3	1.0	Trumbull Street	Yale University
	4	1.3	State Street	Southbound exit only (via Humphrey Street)
	5	1.4	US 5 (State Street) – Fair Haven	Northbound exit only
	6	1.7	Willow Street to Blatchley Avenue, US 5 (SB)
	7	2.1	Ferry Street – Fair Haven	Southbound exit and northbound entrance
	8	2.8	Route 17 (Middletown Avenue), Route 80 – North Branford
North Haven	9	4.8	Montowese Avenue	SR 715 to Route 103
	10	6.6	Route 40 – Hamden, Mt. Carmel (SB), Cheshire (NB)
	11	7.6	Route 22 – North Haven	Northbound and southbound entrance To US 5
	12	8.6	US 5 (Washington Avenue)
Wallingford	13	10.9	US 5 – Wallingford, North Haven	SR 702 to Wharton Brook State Park
	14	12.3 (NB) 13.2 (SB)	Route 150 (Woodhouse Avenue) (NB), East Center Street (SB) – Wallingford	East Center Street is SR 738 to Route 150
	15	16.0	Route 68 – Yalesville, Durham
Meriden	16	18.7	East Main Street	Northbound junction only
	17	18.9 (NB) 19.7 (SB)	NB: Route 15 North (Berlin Turnpike) To I-691, Route 66 SB: Route 15 South (Wilbur Cross Parkway), East Main Street
	18	20.1	NB: Route 66 – Middlefield, Middletown SB: I-691 – Meriden, Waterbury
	19	21.0	Baldwin Avenue, Preston Avenue	Southbound exit and northbound entrance
Middletown	20	23.2	Country Club Road, Middle Street
Cromwell	21	25.7	Route 372 – Cromwell, Berlin
	22	27.4	Route 9 – New Britain, Middletown, Old Saybrook (SB)	Split southbound into 22N and 22S
Rocky Hill	23	29.4	West Street to Route 3 – Rocky Hill	SSR 411 to Dinosaur State Park
	24	31.7	Route 99 – Rocky Hill, Wethersfield
Wethersfield	25	33.7	Route 3 – Glastonbury, Wethersfield (SB), Old Wethersfield (NB)	Partial interchange Split southbound into 25N and 25S Access to northbound Exit 26
	26	34.3	Old Wethersfield	Northbound exit must use Exit 25 ramp.
Hartford	27	35.6	Brainard Road to Airport Road – Brainard Airport	Northbound and southbound entrance Airport Road is SR 530
	28	35.9	US 5/Route 15 South (Berlin Turnpike) – Newington, Wethersfield
	27	36.5	Airport Road to Brainard Road – Brainard Airport	Southbound exit only Airport Road is SR 530
	29	36.8	US 5/Route 15 North to I-84 East – East Hartford, Boston	Northbound junction only
	29A	37.6 (NB) 38.0 (SB)	Capitol Area	Whitehead Highway
	32AB	37.8	A: I-84 West – Waterbury B: Trumbull Street	Northbound ramps
	30	38.4	I-84 East to Route 2 East – East Hartford, New London	Southbound junction only
	31	38.4	State Street	Southbound junction only Route 2 West
	32AB	38.8	A: I-84 West – Waterbury B: Trumbull Street	Southbound ramps
	33	39.9	Jennings Road
Windsor	34	41.1	Route 159 (Windsor Avenue) (NB), North Main Street (SB)
	35AB	42.2	A: I-291 – Manchester B: Route 218 – Windsor, Bloomfield
	36	43.5	Route 178 (Park Avenue) – Bloomfield
	37	44.5	Route 305 (Bloomfield Avenue) – Windsor Center
	38	46.0	Route 75 – Poquonock, Windsor	split southbound into 38A and 38B
	39 & 41	47.2	Kennedy Road to Center Street	Northbound exit and southbound entrance
	40	48.2	Route 20 – Bradley International Airport
Windsor Locks	39 & 41	48.9	Center Street	Southbound exit and northbound entrance
	42	49.6	Route 159 – Windsor Locks
Connecticut River crossing on the Dexter Coffin Bridge
East Windsor	44	50.3	US 5 – East Windsor
	45	51.1	Route 140 – Warehouse Point, Ellington
Enfield	46	52.7	US 5 (King Street)
	47	55.6	Route 190 – East: Hazardville, Somers; West: Suffield	Split into 47E and 47W
	48	56.1	Route 220 (Elm Street) – Thompsonville
	49	57.7	US 5 (Enfield Street) – Longmeadow MA
		58.00[1]	CT-MA state line

Massachusetts

Town	Exit #	Mile	Destinations	Notes
Longmeadow		0.0	CT-MA state line
Springfield	1	3.6	US 5 South – Forest Park, Longmeadow	Southbound exit only US 5 joins northbound and leaves southbound
	2	3.9	Route 83 – Forest Park, East Longmeadow	northbound exit only
	3	4.2	US 5 North To Route 57, Columbus Avenue (NB) – West Springfield (NB), Agawam (SB)	US 5 leaves northbound and joins southbound
	4	4.6	Route 83, Main Street – East Longmeadow	southbound only
	5	4.9	Broad Street	northbound only Formerly northbound Exit 4
	6	5.3	Springfield Center (NB) Union Street (SB)	Old Exit 5 merged with Exit 6
	7	5.9	Columbus Avenue – Springfield Center	southbound only
	8	6.6	I-291/US 20 East to I-90/Mass Pike East
	9	7.0	US 20 West, Route 20A East – West Springfield	northbound only
	10	7.2	Main Street – Chicopee, North Springfield	northbound only
	11	7.5	US 20 West, Birnie Avenue – West Springfield	southbound only
Chicopee	12	8.3	I-391 – Chicopee, Holyoke Center (NB)
Connecticut River crossing
West Springfield	13	9.2	US 5 (Riverdale Street) – West Springfield	split into 13N and 13S
	14	11.5	I-90/Mass Pike – Boston, Albany NY
Holyoke	15	12.7	Lower Westfield Road – Ingleside
	16	14.5	US 202 – Holyoke, South Hadley, Westfield (SB)
	17	15.2	Route 141 – Holyoke Center, Easthampton	split into 17A and 17B northbound
Northampton	18	22.8	US 5 – Northampton, Easthampton (SB)
	19	24.7	Route 9 – Northampton, Amherst	northbound only
	20	25.7	US 5, Route 9, Route 10 – Northampton, Hadley	southbound only
	21	27.3	US 5/Route 10 – Hatfield, Whately (NB)
Hatfield	22	29.8	US 5/Route 10 – Whately, North Hatfield	northbound only
Whately	23	33.4	US 5/Route 10 – Whately, North Hatfield	southbound only
	24	35.0	US 5/Route 10 – Deerfield, Whately (SB)
Deerfield	25	36.2	Route 116 – Deerfield, Conway	southbound only
Greenfield	26	42.9	Route 2 West, Route 2A East – Greenfield Center, North Adams
	27	46.1	Route 2 East – Boston
Bernardston	28	50.4	Route 10 – Bernardston, Northfield	split into 28A and 28B northbound
		54.90[2]	MA-VT state line

Vermont

County	Location	Mile	#	Destinations	Notes
Windham	Guilford	0.0		MA-VT stateline
	Brattleboro	7.5	1	US 5 – Brattleboro
		8.7	2	VT Route 9 West – Brattleboro, Bennington
		11.6	3	US 5, VT Route 9 East – Brattleboro, Keene NH
	Dummerston	18.2	4	US 5 – Putney
	Westminster	28.6	5	US 5 to VT Route 121 – Westminster, Bellows Falls, Walpole NH	To NH Route 123
	Rockingham	35.2	6	US 5, VT Route 103 – Rockingham, Rutland (NB), Bellows Falls (SB)
Windsor	Springfield	41.7	7	US 5, VT Route 11, VT Route 106 – Springfield
	Weathersfield	51.4	8	US 5, VT Route 12, VT Route 131 – Ascutney, Windsor
	Hartland	60.4	9	US 5, VT Route 12 – Windsor, Hartland
	Hartford	69.8	10	I-89 – South: Airport, New Hampshire; North: Barre, Montpelier	split into 10S and 10N
		70.2	11	US 5 – White River Junction
		72.0	12	US 5 – Wilder, White River Junction (SB)
	Norwich	74.8	13	US 5, VT Route 10A – Norwich, Hanover NH
Orange	Thetford	84.2	14	VT Route 113 To US 5 – Thetford
	Fairlee	91.5	15	US 5 – Fairlee, Orford NH
	Bradford	97.6	16	VT Route 25 To US 5 – Bradford, Barre (NB)
	Newbury	110.3	17	US 302 To US 5 – Wells River, Woodsville NH
Caledonia	Barnet	120.4	18	To US 5 – Barnet, Peecham
	Waterford	128.2	19	I-93 – Littleton NH
	St. Johnsbury	128.9	20	US 5 To US 2 East – St. Johnsbury, Passumpsic (SB)
		130.6	21	US 2 To VT Route 15 – St. Johnsbury, Montpelier
		132.6	22	To US 5 – St. Johnsbury
	Lyndon	137.1	23	US 5 To VT Route 114 – Lyndonville, Burke (NB)
		139.9	24	VT Route 122 To VT Route 114 – NB: Wheelock, Sheffield; SB: Burke, Lyndonville, Lyndon Center
Orleans	Barton	156.0	25	VT Route 16 – Barton, Hardwick (SB)
		161.4	26	US 5, VT Route 58 – Orleans, Irasburg
	Derby	170.1	27	VT Route 191 To US 5, VT Route 105 – Newport
		172.4	28	US 5, VT Route 105 – Newport, Derby Center
		177.4	29	To US 5 – Derby Line
		177.43[3]		Continues into Quebec as Autoroute 55

Auxiliary routes

	[ edit ] Auxiliary routes of Interstate 91
	Current and Future (F)	Former
	Connecticut - Massachusetts
	Massachusetts
	Connecticut

References

[ edit] Main Interstate Highways (multiples of 5 in pink)
4	5	8	10	12	15	16	17	19	20	22	24	25	26	27	29	30
35	37	39	40	43	44	45	49	55	57	59	64	65	66	68	69
70	71	72	73	74	75	76 (W)		76 (E)		77	78	79	80	81	82
83	84 (W)		84 (E)		85	86 (W)		86 (E)		87	88 (W)		88 (E)		89	90
91	93	94	95	96	97	99	(238)		H-1		H-2		H-3
Unsigned			A-1		A-2		A-3		A-4		PRI-1		PRI-2		PRI-3
Lists		Main - Auxiliary - Suffixed - Business - Proposed main - Unsigned Gaps - Intrastate - Interstate standards - Replaced - Proposed auxiliary

Browse numbered routes
<	CT		>
< I-90	MA		I-93 >
< I-89	VT		I-93 >