List of Interstate Highways in Massachusetts

The Interstate Highways in Massachusetts comprise five current primary Interstate Highways and eight auxiliary Interstates. In addition, two auxiliary Interstates were proposed and then cancelled.

Interstate Highways in Massachusetts
Highway marker for I-90 and I-495
System information
Maintained by MassDOT
Length565.63 mi[1] (910.29 km)
FormedAugust 14, 1957[2]
Highway names
InterstatesInterstate nn (I-nn)
System links

The longest Interstate Highway in Massachusetts is I-90 with 136 miles, followed by I-495 with 121 miles.

Primary Interstate Highways
Number Length (mi)[3] Length (km) Southern or western terminus Northern or eastern terminus Formed Removed Notes
I-84 8.1513.12 I-84 at Union, CTI-90 in Sturbridge 01958-01-01195801971-01-011971 Replaced part of former Route 15; Replaced by I-86
I-84 8.1513.12 I-84 at Union, CTI-90 in Sturbridge 01984-01-011984current Renumbered back from I-86
I-86 8.1513.12 I-84 at Union, CTI-90 in Sturbridge 01971-01-01197101984-01-011984 Replaced I-84; was later reverted back to I-84
I-89 —— —— 01956-01-01195601960-01-011960 Proposed to replace US 7 in original 1956 plan; rerouted prior to construction
I-90 135.72218.42 I-90 at Canaan, NYRoute 1A in Boston 01958-01-011958current Follows the Massachusetts Turnpike
I-91 54.9988.50 I-91 at Enfield, CTI-91 at Brattleboro, VT 01958-01-011958current
I-93 47.0775.75 I-95/US 1/Route 128 in CantonI-93 at Salem, NH 01957-01-011957current
I-95 91.95147.98 I-95 at Pawtucket, RII-95 at Seabrook, NH 01957-01-011957current
I-95E 40.7365.55 I-95E at E.Providence, RI— 01957-01-01195701959-01-011959 Replaced by I-195
  •       Former

Auxiliary Interstate Highways
Number Length (mi)[4] Length (km) Southern or western terminus Northern or eastern terminus Formed Removed Notes
I-190 19.2631.00 I-290 in WorcesterRoute 2 in Leominster 01983-01-011983current
I-195 40.7365.55 I-195 at E.Providence, RII-495 at Wareham 01959-01-011959current Replaced I-95E
I-290 20.1632.44 I-395/I-90 in AuburnI-495 in Marlborough 01970-01-011970current
I-291 5.448.75 I-91/US 20 in SpringfieldI-90 in Chicopee 01972-01-011972current also known as the Springfield Expressway
I-295 4.236.81 I-295 at Cumberland, RII-95 in Attleborough 01969-01-011969current
I-391 4.467.18 I-91 in ChicopeeHigh Street in Holyoke 01970-01-011970current
I-395 11.9119.17 I-395 at Thompson, CTI-290 in Auburn 01983-01-011983current
I-495 121.56195.63 Route 25 in WarehamI-95 in Salisbury 01960-01-011960current
I-495 BS 2.884.63 US 3 in ChelmsfordGorham Street in Lowell 01962-01-011962current Unsigned; known as Lowell Connector; signs were posted at one time on local streets intersecting the Connector
I-695 —— I-95 in BostonI-93 in Charlestown 01957-01-01195701971-01-011971 Cancelled;Unbuilt
I-895 —— I-895 at Warren, RII-95 and I-295 in Attleboro 01968-01-01196801982-01-011982 Cancelled;Unbuilt
  •       Former

See also
  •  U.S. Roads portal
  •  United States portal

References
  1. Adderly, Kevin (January 15, 2014). "Table 3: Interstate Routes in Each of the 50 States, District of Columbia, and Puerto Rico". Route Log and Finder List. Federal Highway Administration. Retrieved May 20, 2014.
  2. Public Roads Administration (August 14, 1957). Official Route Numbering for the National System of Interstate and Defense Highways as Adopted by the American Association of State Highway Officials August 14, 1957 (Map). Scale not given. Washington, DC: Public Roads Administration. Retrieved November 22, 2010 – via Wikimedia Commons.
  3. Adderly, Kevin (January 15, 2014). "Table 1: Main Routes of the Dwight D. Eisenhower National System of Interstate and Defense Highways as of December 31, 2013". Route Log and Finder List. Federal Highway Administration. Retrieved May 20, 2014.
  4. Adderly, Kevin (October 31, 2002). "Table 2: Auxiliary Routes of the Dwight D. Eisenhower National System of Interstate and Defense Highways as of December 31, 2013". Route Log and Finder List. Federal Highway Administration. Retrieved May 20, 2014.
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