List_of_Interstate_Highways_in_Massachusetts Knowpia

Interstate Highways in Massachusetts
Interstate Highways in Massachusetts
	Highway marker for I-90 and I-495
	Interstate Highways highlighted in red
System information
	Maintained by MassDOT
Length	565.63 mi (910.29 km)
Formed	August 14, 1957
Highway names
Interstates	Interstate nn (I-nn)
System links
	Massachusetts State Highway System; Interstate; US; State;

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.

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

Several freeway projects in the Boston area planned as part of the Interstate Highway System were cancelled in the 1970s following community opposition, including the Inner Belt (I-695) and Southwest Expressway (I-95).^[3] The Big Dig megaproject in the 1990s and 2000s, which realigned several highways in Downtown Boston, included a new tunnel for I-93 to replace the Central Artery and an extension of I-90 via the Ted Williams Tunnel.^[4]

Primary Interstate Highways edit


Number	Length (mi)^[5]	Length (km)	Southern or western terminus	Northern or eastern terminus	Formed	Removed	Notes
I-84	8.15	13.12	I-84 at Union, CT	I-90 in Sturbridge	01958-01-011958	01971-01-011971	Replaced part of former Route 15; Replaced by I-86
I-84	8.15	13.12	I-84 at Union, CT	I-90 in Sturbridge	01984-01-011984	current	Renumbered back from I-86
I-86	8.15	13.12	I-84 at Union, CT	I-90 in Sturbridge	01971-01-011971	01984-01-011984	Replaced I-84; was later reverted back to I-84
I-89	—	—	—	—	01956-01-011956	01960-01-011960	Proposed to replace US 7 in original 1956 plan; rerouted prior to construction
I-90	135.72	218.42	I-90 at Canaan, NY	Route 1A in Boston	01958-01-011958	current	Follows the Massachusetts Turnpike
I-91	54.99	88.50	I-91 at Enfield, CT	I-91 at Brattleboro, VT	01958-01-011958	current
I-93	47.07	75.75	I-95/US 1/Route 128 in Canton	I-93 at Salem, NH	01957-01-011957	current
I-95	91.95	147.98	I-95 at Pawtucket, RI	I-95 at Seabrook, NH	01957-01-011957	current
I-95E	40.73	65.55	I-95E at E.Providence, RI	—	01957-01-011957	01959-01-011959	Replaced by I-195
Former

Auxiliary Interstate Highways edit


Number	Length (mi)^[6]	Length (km)	Southern or western terminus	Northern or eastern terminus	Formed	Removed	Notes
I-190	19.26	31.00	I-290 in Worcester	Route 2 in Leominster	01983-01-011983	current
I-195	40.73	65.55	I-195 at E.Providence, RI	I-495 at Wareham	01959-01-011959	current	Replaced I-95E
I-290	20.16	32.44	I-395/I-90 in Auburn	I-495 in Marlborough	01970-01-011970	current
I-291	5.44	8.75	I-91/US 20 in Springfield	I-90 in Chicopee	01972-01-011972	current	also known as the Springfield Expressway
I-295	4.23	6.81	I-295 at Cumberland, RI	I-95 in Attleborough	01969-01-011969	current
I-391	4.46	7.18	I-91 in Chicopee	High Street in Holyoke	01970-01-011970	current
I-395	11.91	19.17	I-395 at Thompson, CT	I-290 in Auburn	01983-01-011983	current
I-495	121.56	195.63	Route 25 in Wareham	I-95 in Salisbury	01960-01-011960	current
I-495 BS	2.88	4.63	US 3 in Chelmsford	Gorham Street in Lowell	01962-01-011962	current	Unsigned; known as Lowell Connector; signs were posted at one time on local streets intersecting the Connector
I-695	—	—	I-95 in Boston	I-93 in Charlestown	01957-01-011957	01971-01-011971	Cancelled before it was constructed
I-895	—	—	I-895 at Warren, RI	I-95 and I-295 in Attleboro	01968-01-011968	01982-01-011982	Cancelled before it was constructed
Former

References edit

^ 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.
^ 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.
^ McDonald, Danny (December 5, 2022). "Transformative decision a half-century ago to scrap I-95 extension still resonates in Boston today". The Boston Globe. Archived from the original on December 5, 2022. Retrieved December 5, 2022.
^ "The Big Dig: tunnels and bridges". Massachusetts Department of Transportation. Retrieved December 5, 2022.
^ 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.
^ 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.

[1957map-1] 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.

[table3-2] 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.

[3] McDonald, Danny (December 5, 2022). "Transformative decision a half-century ago to scrap I-95 extension still resonates in Boston today". The Boston Globe. Archived from the original on December 5, 2022. Retrieved December 5, 2022.

[4] "The Big Dig: tunnels and bridges". Massachusetts Department of Transportation. Retrieved December 5, 2022.

[table1-5] 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.

[table2-6] 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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Summary

Primary Interstate Highways edit

Auxiliary Interstate Highways edit

See also edit

References edit