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Route 128 | ||||
|---|---|---|---|---|
| Yankee Division Highway | ||||
Route 128 highlighted in red
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| Route information | ||||
| Maintained by MassDOT | ||||
| Length | 57.5829 mi[1] (92.6707 km) | |||
| Existed | 1927–present | |||
| Major junctions | ||||
| South end |    I-93 / I-95 / US 1inCanton | |||
| Major intersections |
 US 20inWaltham Route 2inLexington US 3inBurlington I-93inReading US 1inLynnfield I-95inPeabody | |||
| North end |  Route 127AinGloucester | |||
| Location | ||||
| Country | United States | |||
| State | Massachusetts | |||
| Counties |
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| Highway system | ||||
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Route 128, known as the Yankee Division Highway, is an expressway in the U.S. state of Massachusetts maintained by the Highway Division of the Massachusetts Department of Transportation (MassDOT). Spanning 57 miles (92 km), it is one of two beltways (the other being Interstate 495) around Boston, and is known as the "inner" beltway, especially around areas where it is 15 miles (25 km) or less outside of Boston. The route's current southern terminus is at the junction of I-95 and I-93 in Canton, and it is concurrent with I-95 around Boston for 37.5 miles (60.4 km) before it leaves the interstate and continues on its own in a northeasterly direction towards Cape Ann. The northern terminus lies in Gloucester a few hundred feet from the Atlantic Ocean. All but the northernmost 3 miles are a freeway, with the remainder being an expressway. Its concurrency with I-95 makes up most of its length.
Originally designated in 1927 along a series of surface streets, Route 128 provided a circumferential route around the city of Boston. The original route extended from the seaport of Gloucester, on the North Shore, to the beach resort community of Hull on the South Shore. Construction of the present circumferential highway began in Gloucester in the early 1950s and progressed southward, in part on new alignments and in part by the improvement of older roads, and came to completion with the final link into the Southeast Expressway (Massachusetts Route 3/John Fitzgerald Expressway/Pilgrim Highway) at a three-way flying junction known as the Braintree Split. With the completion of the final segment of the Yankee Division Highway in Braintree in 1960, the segment of Route 128 through Braintree, Weymouth and Hingham was rerouted to run concurrently with Route 3 on the Southeast Expressway/Pilgrim Highway between the Braintree Split (Route 3 Exit 42 (old exit 19), Route 128 exit 67) and Exit 35 (old exit 14), then along Pond Street in Norwell to Queen Anne's Corner on the Hingham-Norwell line, retaining its original route from Queen Anne's corner to its terminus in Hull. Subsequent upgrades on the northern segment in the 1960s completed a full freeway from Braintree in the south to Gloucester in the north.
Over time, the southern terminus was truncated twice.
However, twenty years later, the entire segment of the highway is still called "Route 128" even in traffic reports on radio and television in local parlance, often causing considerable confusion for uninitiated visitors to the area.
In local culture, "Route 128" is generally recognized as the demarcation between the more-urban inner suburbs and the less-densely-developed suburbs surrounding the city of Boston. It also approximately delimits the region served by the rapid transit and trolley system operated by the Massachusetts Bay Transportation Authority (MBTA),[a] and is used to reference the high-technology industry that developed from the 1960s to the 1980s in the suburban areas along the highway.[2]
Route 128 begins in the south in Norfolk County, at the interchange with I-93, I-95, and US 1inCanton. It immediately begins as a freeway. Until the 1990s, its southern terminus was located at the junction of I-93, US 1, and Route 3 (the Braintree Split) in Braintree. At this present-day terminus, 128 is concurrent with I-95, and follows the mileage-based exit numbering scheme used by I-95 as it enters Massachusetts from Pawtucket, Rhode Island. It also begins a wrong-way concurrency with US 1; as 128 and I-95 are signed traveling north, US 1 is signed traveling south, and vice versa. US 1 splits onto its own roadbed at exit 29 (old exit 15) in Dedham.
In response to the outcome of the 1970 Boston Transportation Planning Review, Massachusetts focused federal highway funding on public mass transportation rather than building new highways through Boston and the inner suburbs ("inside of Highway 128"), cancelling plans for completion of a northeast Expressway and construction of a southwest Expressway to carry I-95 through downtown Boston. This policy cascaded into designation of the segment of the Yankee Division Highway between the existing I-95 junction in Canton and the new I-95 junction in Peabody as I-95 rather than building a new highway to complete the connection, coupled with a decision to extend I-93 southward along the Central Artery and John Fitzgerald Expressway and onto the southern end of the Yankee Division Highway to the I-95 junction in Canton. After completion of the I-95/Highway 128 interchange in Peabody in 1988, the State Highway Department changed the numbers of all exits south of the newly completed junction to those of the respective interstate highway designations. Since then, the highway has had three sets of exit numbers: I-93 exits 7 through 1 from the southern terminus to the I-95 junction in Canton, I-95 exits 26 through 64 (old exits 12 through 45) from the I-95 junction in Canton to the I-95 junction in Peabody, and the original Route 128 exits 37 through 55 (old exits 29 through 12) from the I-95 junction in Peabody to the northern terminus. The interchange with I-93 in Woburn, which was Route 128 Exit 37 before the renumbering, became I-93 Exit 37 (now exit 28) in the renumbering and thus coincidentally retained its number until the switchover with the mileage-based system in 2021. Along with other highways in the Commonwealth, exits were renumbered with a mileage-based system in 2021.[3]
As a result of this political decision, about two thirds of Route 128 runs in tandem with I-95 from Canton north to Peabody, and after I-95 splits off and continues north from Peabody toward New Hampshire, 128 runs eastward on its own right of way from Peabody to Gloucester. The I-95 and I-93 signage were added in the mid-1970s when plans to construct I-95 through Boston, directly connecting the two I-95/Highway 128 interchanges, were cancelled leaving a gap filled using 128. An unused cloverleafinCanton, partially removed circa 1977, was one of the leftover structures from this plan as well as the existing expressway (part of US 1 since 1989).
The decision to reroute I-95 onto Highway 128 rather than building a new highway inside of 128 has contributed to three significant problems.
The political decision not to build new highways inside of Route 128 also led to abandonment of plans to extend the U.S. Route 3 freeway from its current interchange with the Yankee Division Highway in Burlington to a junction with Route 2inLexington as originally planned. This decision caused a temporary reroute of U.S. Route 3 onto the Yankee Division Highway, but in the opposite direction, to connect with its original route, one interchange to the north of the current junction, to become permanent.
Ametropolitan planning organization for the Boston area studied the Route 128/I-95 Corridor from approximately 2005–2010. The study focused on the heavily congested section from I-90 (Newton) to US 3 (Burlington), and was completed in November 2010. As of 2010, the highway carried over 200,000 vehicles per day. Some possible improvements to Highway 128 include HOV Lanes, reconstruction of shoulders, ramp metering, bus on shoulder, and fiber optic traffic system improvements. More studies will need to be completed before projects will begin.
The area along the western part of Highway 128 is home to a number of high-technology firms and corporations. This part of 128 was dubbed "America's Technology Highway", and signs marking it that way were put in place beginning in October 1982. Two years later, those blue signs were changed to read "America's Technology Region" after complaints from veterans groups that noted the highway already had a name: the Yankee Division Highway,[4] a name bestowed in 1941 in honor of the U.S. Army unit first formed in Boston in 1917.[5]
The segment of the highway that still carries the sole designation as Route 128, which is a four-lane freeway for most of its length, was not originally built as a freeway. Many junctions in this segment were constructed as signaled intersections at grade in the 1950s and subsequently reconstructed with grade separation and interchanges in the 1960s - often with local streets that happened to be in convenient locations doubling as ramps for access to the highway. However, four junctions nearest the northern end in the town of Gloucester were not improved. Proceeding in the direction signed as northward beyond Exit 55 (old exit 12) (the interchange with Crafts Road), the route runs eastward as a four-lane expressway through two rotaries, named Grant Circle (intersection with Washington Street) and Blackburn Circle (intersection with Dory Road going northward and Schoolhouse Road going southward) and another intersection at Route 127 (Eastern Avenue) to its terminus in another intersection at Route 127A (East Main Street/Bass Avenue).[6]
As designated in 1927, the original Route 128, called the "Circumferential Highway," followed existing roadways from Gloucester to Hull through Boston's suburbs. The first (northernmost) segment of the present freeway, which is still just four lanes wide, opened in 1951.[7] Construction progressed southward. The final (southernmost) segment, originally built as the present eight-lane highway that spliced into the John Fitzgerald Expressway (then Route 3 for its entire length, and popularly also known as the Southeast Expressway) at a wye junction now[when?] known as the Braintree SplitinBraintree. This segment, which opened in 1960, replaced a two-lane undivided road to complete the first circumferential highway around any major city.
Upon completion of the final segment of the Yankee Division Highway, the agency then known as the Massachusetts Highway Department (subsequently reorganized the Highway Division of the Massachusetts Department of Transportation) assigned the concurrent designation of Route 128 to the segment of the Southeast Expressway (Route 3) from Exit 35 (old exit 14) to the Braintree Split (Exit 42, old exit 19), linking to the segment of the original Route 128 from the intersection with Route 53 at Queen Anne's Corner at the Hingham-Norwell line to the southern terminus in Hull. That action removed the designation as Route 128 from Blue Hill River Road in Randolph and Braintree, which is now[when?] closed to traffic, and West Street, Franklin Street, segments of Washington Street and Plain Street, and Grove Street in Braintree, a segment of Columbian Street, Park Avenue, and a segment of Ralph Talbot Street in Weymouth, and Derby Street and a segment of Whiting Street (Route 53) in Hingham, all of which remain in service for local traffic. However, fate was not so kind to the rest of the original route. Although some segments of remain in service as local parallel streets, other segments became part of the present right of way, but with connections severed at both ends, and some segments were severed where they cross the present right of way and even closed if no longer used by local traffic. Thus, it is no longer feasible to drive the original route between Braintree and Gloucester.
In 1965, the Massachusetts Highway Department truncated Route 128 at the Braintree Split and redesignated the non-freeway section of Route 128 from Route 3 through Hingham and Hull as Route 228, with its direction reversed to reflect the actual geographical direction of that segment of the route. This action ended the concurrent route designation on the John Fitzgerald Expressway.
In the wake of a political decision not to complete the Northeast Expressway and to construct a Southwest Expressway to connect I-95 through Boston as originally planned, the United States Department of Transportation and the Massachusetts Highway Department redesignated the segment of the Yankee Division Highway between the junction with the completed segment of I-95 from Peabody to the New Hampshire border and the junction with the completed segment of I-95 from Canton to the Rhode Island border as I-95 to complete that highway. Concurrently, these agencies extended I-93 from its original terminus in Boston southward on the John Fitzgerald Expressway to the Braintree Split, then westward on the southern segment of the Yankee Division Highway to the junction with the completed southern segment of I-95 from Canton. At that time, the Massachusetts Highway Department officially truncated Route 128 at its intersection with I-95 in Peabody, began removal of Route 128 signage, and assigned I-93 and I-95 exit numbers to the interchanges on both affected segments of the Yankee Division Highway. The Massachusetts Highway Department subsequently restored the designation of Route 128 and reinstalled signage on the segment of the Yankee Division Highway designated as I-95, partly in response to public protest and partly due to the fact that an Amtrak and MBTA commuter rail station adjacent to the highway at the University Avenue interchange in Canton bears the name Route 128 (RTE on the railroad timetables and in the Amtrak reservation system). The station is located at the first interchange north of the junction of I-93 and I-95 in Canton.
Despite no longer officially carrying the designation, the section of the Yankee Division Highway between Braintree and Canton is popularly called Route 128 within Massachusetts.[8] However, signage for Route 128 has gradually disappeared from the segment designated as I-95 as the Massachusetts Department of Transportation has replaced signage along that segment of the road and on the intersecting roads.
At its current southern terminus, Route 128 begins running concurrently with I-95 (same direction) and US 1 (opposite direction). While its concurrency with US 1 ends in Dedham, its concurrency with I-95 continues as it intersects with expressways including I-90 (the Massachusetts Turnpike) in Weston; US 20inWaltham; Route 2inLexington; US 3inBurlington (with which it runs concurrently within the town); and I-93 and US 1 again in Reading and Lynnfield, respectively. 128 and I-95 split in Peabody; as I-95 continues north towards New Hampshire, 128 travels east towards its northern terminus at an interchange with Route 127AinGloucester.
Route 128 was assigned by 1927[9] along local roads, running from Route 138inMilton around the west side of Boston to Route 107 (Essex Street or Bridge Street) in Salem. Its route was as follows:
| Town/City | Streets |
|---|---|
| Milton | Milton Street |
| Boston | Neponset Valley Parkway, Milton Street |
| Dedham | Milton Street, High Street, Common Street, West Street |
| Needham | Dedham Avenue, Highland Avenue |
| Newton | Needham Street, Winchester Street, Centre Street, Walnut Street, Crafts Street, Waltham Street |
| Waltham | High Street, Newton Street, Main Street (U.S. Route 20), Lexington Street |
| Lexington | Waltham Street, Massachusetts Avenue (Route 2A, current Route 4/Route 225), Woburn Street |
| Woburn | Lexington Street, Pleasant Street, Montvale Avenue |
| Stoneham | Montvale Avenue, Main Street (Route 28), Elm Street |
| Wakefield | Albion Street, North Avenue, Water Street, Vernon Street, New Salem Street, Salem Street |
| Lynnfield | Salem Street |
| Peabody | Lynnfield Street, Washington Street, Main Street |
| Salem | Boston Street |
By 1928, it had been extended east to Quincy from its south end along the following streets, ending at the intersection of Route 3 and Route 3A (current Route 3A and Route 53):[10]
| Town | Streets |
|---|---|
| Quincy | Washington Street, Hancock Street, Adams Street |
| Milton | Adams Street, Centre Street, Canton Avenue, Dollar Lane |
The first section of the new Circumferential Highway, in no way the freeway that it is now, was the piece from Route 9inWellesley around the south side of Boston to Route 3 (current Route 53) in Hingham. Parts of this were built as new roads, but most of it was along existing roads that were improved to handle the traffic. In 1931, the Massachusetts Department of Public Works acquired a right-of-way from Route 138inCanton through Westwood, Dedham and Needham to Route 9 in Wellesley. This was mostly 80 feet (24 m) wide, only shrinking to 70 feet (21 m) in Needham, in the area of Great Plain Avenue and the Needham Line. Much of this was along new alignment, but about half — mostly in Needham — was along existing roads:
From Route 138 in Canton east through the Blue Hills Reservation in Canton, Milton, Quincy and Braintree, Norfolk County acquired a right-of-way in 1927[12] and built the Blue Hill River Road. This tied into West Street in northwest Braintree, which itself had been taken over by the county in 1923.[13]
West Street led to Route 37, which ran southeast to Braintree center. This part of Route 37 had been taken over by the state in 1919 (to Braintree center)[14] and 1917 (in Braintree center).[15]
The rest of the new highway, from Route 37 east to Route 3 (now[when?] Route 53), through Braintree, Weymouth and Hingham, was taken over by the state in 1929. This was all along existing roads, except possibly the part of Park Avenue west of Route 18 in Weymouth.[16]
By 1933,[17] the whole Circumferential Highway had been completed, and, except for the piece from Route 9inWellesley south to Highland Avenue in Needham, was designated as Route 128. Former Route 128 along Highland Avenue into Needham center was left unnumbered (as was the Circumferential Highway north of Highland Avenue), but the rest of former Route 128, from Needham center east to Quincy, became part of Route 135. Thus the full route of the Circumferential Highway, as it existed by 1933, is now[when?] the following roads:
| Town | Streets |
|---|---|
| Hingham | Derby Street (realigned during construction of Massachusetts Route 3, with two segments of original alignment becoming Old
Derby Street)) |
| Weymouth | Ralph Talbot Street, Park Avenue, Columbian Street |
| Braintree | Columbian Street, Grove Street, Washington Street (Route 37), Franklin Street (Route 37), West Street, Blue Hill River Road (now[when?] closed) (see Quincy) |
| Quincy | Blue Hill River Road (now[when?] closed; current highway uses its right-of-way) |
| Milton | Blue Hill River Road, Hillside Street |
| Canton | Blue Hill River Road, Royall Street, Green Lodge Street (cut by the Route 128/Interstate 95 interchange) |
| Westwood | Blue Hill Drive (cut by Route 128 Station, and later upgraded on the spot as northbound Route 128) |
| Dedham and Westwood | upgraded on the spot as northbound Route 128 (under U.S. Route 1) and then mostly in the median |
| Needham | Greendale Avenue, Hunting Road, southbound Route 128 under Highland Avenue, Reservoir Street |
| Wellesley | inside the present Route 9 interchange |
At the same time as Route 128 was extended along the new Circumferential Highway, it was extended further into Hull. This alignment, not part of the Circumferential Highway, ran southeast on Route 3 (now[when?] Route 53) (Whiting Street) to the border of Hingham and Norwell, where it turned north on present Route 228 (Main Street) through Hingham and into Hull. The exact route through Hingham was Main Street, Short Street, Leavitt Street, East Street, and Hull Street. The end of the numbered route was at the south end of Nantasket Beach, where Nantasket Avenue curves northwest to follow the shore of Massachusetts Bay.[18]
In 1955, Business Week ran an article titled "New England Highway Upsets Old Way of Life" and referred to Route 128 as "the Magic Semicircle". By 1958, it needed to be widened from four to six lanes, and business growth continued, often driven by technology out of Harvard University and MIT.[19] In 1957, there were 99 companies employing 17,000 workers along 128; in 1965, 574; in 1973, 1,212. The development of college-like suburban campuses and marketing to technology companies was intentional on the part of real estate developers such as Gerald W. Blakeley Jr.[20] In the 1980s, the area was often compared to California's Silicon Valley,[21][22] and the positive effects of this growth on the Massachusetts economy were dubbed the "Massachusetts Miracle".
The $315 million MassDOT Highway Division project has widened the existing 14.3-mile (23.0 km) six-lane section of highway to eight lanes from north of Route 9 in Wellesley to Route 24 in Randolph. The project consists of adding a lane on the inside of each carriageway, complete with a 10-foot inside shoulder. The existing 1950s bridges, 22 in total, also were replaced. The project also included construction of a new two-lane ramp from Route 128 to I-95 in Canton and installation of a new interchange at Kendrick Street in Needham, designated as Exit 35 A (old exit 19A) with the ramps to Highland Avenue become Exits 35 B and 35 C (old exits 19B and 19C).
During the initial construction of Route 128, a provision had already been made for a fourth lane within the widely spaced median along the 1.5-mile (2.5 km) length of Route 128 running from just north of the U.S. Route 1 interchange in Dedham, Massachusetts, north-westwards to the Route 109 interchange, and this will finally be used for the Add-A-Lane project.
Construction on phase 1 was officially completed in October 2009. Construction of phase 2 of the project began in summer 2006. This phase of the project consisted of the replacement of the Route 1 and Route 1A bridges over Route 128 in Dedham along with the road widening between Exits 27 and 29 (old exits 13 and 15) (US 1). Construction of four sound barriers between the US 1 and I-95 interchanges were also included. This phase was completed in the Spring of 2011.
Construction on phase 3, begun in April 2009, widened I-93/US 1 to 4 lanes in each direction from Route 24 to the I-95 interchange. Phase 4 of the Project, which began in March 2011, is replacing seven bridges and widens Route 128 (I-95) to four lanes in each direction from Route 109 to south of Highland Avenue in Needham. The southeastern freeway (Pilgrims Highway) that extends from Braintree to Cape Cod, MA Route 3, is also in the process of undergoing a similar "add-a-lane" project for much of its own 42 mile length.
Construction on the sixth and final[23] segment in Needham and Wellesley began in January 2015, and included wider bridges and more auxiliary lanes and a new collector road.[24] Major road construction ended in October 2018, and the project wrapped up with painting and landscaping in the spring of 2019.[25]
Over the last fifteen or so years, the state has funded a number of highway sign resigning projects on Route 128 that are replacing the 25-year-old signs with new exit, regulatory and route signs. Starting in 1998 and continuing through 2002, signs were replaced through a $1.1 million project between Reading and Lynnfield. Progress continued in 2005 and 2006 during a $2.2 million project which replaced the signs on from Peabody to Gloucester, and continued with a $1.4 million project in 2008 and 2009 that replaced signs in Peabody and the remaining ones in Lynnfield. A $2.9 million federal stimulus project helped replace exit and highway signs in 2010 and 2011 along Route 128/I-95 from US-3 in Lexington to I-93 in Reading.
A project begun in the Fall of 2012 and completed in the Fall of 2015, replaced exit & guide signs on Route 128/I-95 from Route 9 (Exit 36, old exit 20) in Wellesley to Routes 4/225 (Exit 49, old exit 31) in Lexington and, as part of the Add-A-Lane project discussed above, new signs were put up along a section of the I-95/Route 128 project completed in 2015 from Great Plain Avenue in Needham to Route 109 in Dedham.[26] New signage was put up between I-95 and US 1 in 2010 and most of the signage between I-95 and Route 24 (on I-93/US 1) has been replaced by the end of 2011. Future projects will replace the signs on I-95 (south of Route 128) between the Rhode Island Border and the interchange with I-93, US 1, and Route 128 in Canton in 2018 and (along I-95/Route 128) between I-93 in Reading and US 1 in Peabody in 2019. New mileage markers were placed every 2/10 of a mile along the highway in 2010 (except for the area covered by the widening project) for I-93 between Braintree and Canton and I-95/Route 128 from Canton to Peabody. New markers put along Route 128 (north of I-95) from Peabody to Gloucester reflect the state highway's total mileage from Canton, indicating MassDOT's change of heart in decommissioning the route where it shares the road with I-95. The previous mile markers (reflected in the exit list below) had mile 0 in Peabody.
In 2015, the mayor of the City of Waltham, Jeannette McCarthy, noted that traffic is exceeding the capacity of Route 128 and proposed that communities located along the highway jointly consider a plan of establishing a form of monorail to add further mass transit options to businesses along the Route 128 corridor.[27][28]
The exit numbers along the I-93 portion of the Yankee Division Highway (indicated by an asterisk in the table below because that segment of the highway is no longer officially part of Route 128) are in accordance with Interstate 93's exit numbering scheme in Massachusetts. Exit numbers along the I-95/Route 128 overlap portion are in accordance to the I-95 exit numbering scheme in Massachusetts. The stretch north of I-95, as well as the rest of the length before I-95 exit numbering was applied, previously had decreasing exit numbers traveling northbound, contrary to almost all highways in the US with numbered exits. Route 128 currently has 18 numbered interchanges, which previously started at 37 (old exit 29) (southbound) and continued downwards to old exit 9 (former Exit 27, an at-grade intersection, was removed, and the last two exits are at-grade intersections). However, upon Massachusetts switching to mileage-based exit numbers, the exit numbers now abide by standard numbering rules.[29][30] The new numbers along the stretch of highway north of I-95 increase from 37 in Peabody to 55 in Gloucester, with the traffic circles and at-grade intersections no longer receiving numbers.[31] On January 27, 2021, MassDOT announced that renumbering the exits along Route 128 will start on February 3 and will go on for two weeks, but it was delayed until February 11 due to weather and a delay on renumbering the exits along US Route 3.[32]
| County | Location | mi | km | Old exit | New exit | Destinations | Notes |
|---|---|---|---|---|---|---|---|
| Norfolk | Canton | 0.0 | 0.0 | 12 | 26 |    I-93 north / US 1 north / I-95 south – Boston, Providence, RI | Southern terminus of I-95 / US 1 concurrency |
| Dedham | 0.6 | 0.97 | 13 | 27 |  University Avenue – MBTA / Amtrak Station | ||
| Westwood | 1.9 | 3.1 | 14 | 28 | East Street / Canton Street | ||
| Dedham | 2.6 | 4.2 | 15 | 29 |    US 1 south to Route 1A – Norwood, Dedham | Northern terminus of US 1 concurrency; signed as exits 29A (Route 1A) and 29B (US 1) | |
| 4.1 | 6.6 | 16 | 31 |  Route 109 – Dedham, Westwood | Signed as exits 31A (east) and 31B (west) | ||
| 5.6 | 9.0 | 17 | 32 |   Route 135 west – Needham, Natick | Norfolk County Correctional Center is in the median of Route 128; eastern terminus of Route 135 | ||
| Needham | 6.0 | 9.7 | 18 | 33 | Great Plain Avenue – West Roxbury | ||
| 8.2– 8.8 | 13.2– 14.2 | 19A | 35A | Kendrick Street – Needham | |||
| 19 | 35 | Highland Avenue – Newton Highlands, Needham | Signed as exits 35B (east) and 35C (west) | ||||
| Wellesley | 9.9 | 15.9 | 20 | 36 |  Route 9 – Brookline, Boston, Framingham, Worcester | Signed as exits 36A (east) and 36B (west) | |
| Middlesex | Newton | 11.2 | 18.0 | 21 | 37 |  Route 16 – Newton, Wellesley | Signed as exits 37A (east) and 37B (west) southbound |
| 11.6 | 18.7 | 22 | 38 | Grove Street – MBTA Station | |||
| Weston | 12.0 | 19.3 | 23 | – | Recreation Road | Northbound exit and entrance; planned to be closed within the next two years as part of a proposed development project | |
| 12.3– 12.5 | 19.8– 20.1 | 25 | 39B |  I-90 / Mass Pike – Boston, Albany, NY | Exit 123A on I-90 / Mass Pike | ||
| 24 | 39A |  Route 30 – Newton, Weston | |||||
| Waltham | 14.5 | 23.3 | 26 | 41 | US 20 – Waltham, Weston | ToRoute 117 | |
| 16.3 | 26.2 | 27 | 43 | Third Avenue / Totten Pond Road / Winter Street | Signed as exits 43A (Third Ave) and 43B (Totten Pond/Winter) northbound, exits 43A (Totten Pond/Third) and 43B (Winter) southbound | ||
| 17.6 | 28.3 | 28 | 44 | Trapelo Road – Belmont, Lincoln | Signed as exits 44A (east) and 44B (west) northbound | ||
| Lexington | 18.5 | 29.8 | 29 | 45 | Route 2 – Cambridge, Boston, Acton, Fitchburg | Signed as exits 45A (east) and 45B (west); exits 127A-B on Route 2 | |
| 19.6 | 31.5 | 30 | 46 |  Route 2A – East Lexington, Concord | Signed as exits 46A (east) and 46B (west); to Hanscom Field | ||
| 21.8 | 35.1 | 31 | 49 |   Route 4 / Route 225 – Lexington, Bedford | Signed as exits 49A (south/east) and 49B (north/west) | ||
| Burlington | 23.1 | 37.2 | 32A | 50A | US 3 north – Lowell, Nashua, NH | Southern terminus of US 3 wrong-way concurrency; exit 72B on US 3 | |
| 23.4 | 37.7 | 32B | 50B | Middlesex Turnpike – Burlington | |||
| 24.8 | 39.9 | 33 | 51 |  US 3 south / Route 3A north – Winchester, Burlington | Northern terminus of US 3 concurrency; signed as exits 51A (south) and 51B (north) | ||
| 25.7 | 41.4 | 34 | 52 | Winn Street – Woburn, Burlington | |||
| Woburn | 26.8 | 43.1 | 35 | 53 |  Route 38 – Woburn, Wilmington | ||
| 28.4 | 45.7 | 36 | 54 | Washington Street – Woburn, Reading | |||
| Reading | 28.8 | 46.3 | 37 | 55 | I-93 – Boston, Concord, NH | Signed as exits 55A (south) and 55B (north); exits 28A-B on I-93 | |
| 29.6 | 47.6 | 38 | 56 |  Route 28 – Stoneham, Reading | Signed as exits 56A (south) and 56B (north) | ||
| Wakefield | 30.8 | 49.6 | 39 | 57 | North Avenue – Reading, Wakefield | ||
| 31.6 | 50.9 | 40 | 58 |  Route 129 – Wakefield Center, Wilmington | |||
| Essex | Lynnfield | 32.3 | 52.0 | 41 | 59 | Main Street – Lynnfield Center, Wakefield | |
| Middlesex | Wakefield | 33.9 | 54.6 | 42 | 60 | Salem Street – Wakefield | |
| Essex | Lynnfield | 34.5 | 55.5 | 43 | 61 | Walnut Street – Saugus, Lynnfield | |
| 35.9 | 57.8 | 44 | 63 | US 1 / Route 129 – Boston, Danvers | Signed as exits 63A (south/west) and 63B (north/east) northbound; Route 129 not signed southbound | ||
| Peabody | 37.5 | 60.4 | 45 (NB) 29 (SB) | 64 (NB) 37 (SB) | I-95 north – Portsmouth, NH | Northern terminus of I-95 concurrency | |
| 38.4 | 61.8 | 28 | 38 | Forest Street / Centennial Drive | |||
| 39.0 | 62.8 | 26 | 39 | Lowell Street – Peabody Square, Salem | |||
| 39.7 | 63.9 | 25 | 40 |  Route 114 / North Shore Mall Road / Lowell Street – Salem, Middleton, West Peabody | Signed as exits 40A (east) and 40B (west) | ||
| Danvers | 40.4 | 65.0 | 24 | 41 | Endicott Street | ||
| 41.2 | 66.3 | 23 | 42 |  Route 35 – Salem, Danvers | |||
| 41.8 | 67.3 | 22 | 43 |  Route 62 – Beverly, Middleton | |||
| 42.5 | 68.4 | 21 | 44 | Trask Lane – Folly Hill | Northbound exit and entrance | ||
| Conant Street – Industrial Park | Southbound exit and entrance | ||||||
| Beverly | 43.5 | 70.0 | 20 | 45 | Route 1A – Beverly, Hamilton | Signed as exits 45A (south) and 45B (north) | |
| 44.2 | 71.1 | 19 | 46 | Sohier Road / Brimbal Avenue – Montserrat, North Beverly | Sohier Road not signed southbound | ||
| 45.3 | 72.9 | 18 | 47 |  Route 22 – Essex, Beverly | |||
| Wenham | 47.4 | 76.3 | 17 | 48 | Grapevine Road – Beverly Farms, Wenham | ||
| Manchester | 48.9 | 78.7 | 16 | 49 | Pine Street – Manchester, Magnolia | ||
| 50.4 | 81.1 | 15 | 50 | School Street – Essex, Manchester | |||
| Gloucester | 53.5 | 86.1 | 14 | 53 |  Route 133 – West Gloucester, Essex | ||
| 54.2 | 87.2 | 13 | 54 | Concord Street – Wingaersheek Beach | |||
| 54.8 | 88.2 | 12 | 55 | Crafts Road – Rust Island | |||
| 56.0 | 90.1 | Northern end of freeway section | |||||
| 11 | – |  Route 127 south (Washington Street) – Gloucester, Annisquam | Grant Circle; northern terminus of Route 127 | ||||
| 56.8 | 91.4 | – | – | Dory Road / Gloucester School Road | Blackburn Circle | ||
| 57.6 | 92.7 | 10 | – | Route 127 (Eastern Avenue) – Manchester, Rockport | At-grade intersection | ||
| 57.8 | 93.0 | 9 | – | Route 127A – Rockport, Bass Rocks, Eastern Point | At-grade intersection | ||
1.000 mi = 1.609 km; 1.000 km = 0.621 mi
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{{cite web}}: CS1 maint: others (link)
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