Massachusetts Avenue, known to locals as Mass Ave, is a major thoroughfare in Boston, Massachusetts, and several cities and towns northwest of Boston. According to Boston magazine, "Its 16 miles of blacktop run from gritty industrial zones to verdant suburbia, passing gentrified brownstones, college campuses and bustling commercial strips."
The street begins in the Boston neighborhood of Dorchester and runs southeast-northwest through Boston, paralleling Interstate 93 for a short distance and interchanging with the Massachusetts Turnpike (Interstate 90). It crosses the Charles River from the Back Bay neighborhood of Boston into the city of Cambridge via the Harvard Bridge, where it bisects the campus of the Massachusetts Institute of Technology, passes through Central Square, and curves around two sides of Harvard Yard at Harvard Square. After Harvard Square it turns sharply northward, passes Harvard Law School, then passes through Porter Square, where it bears northwestward. It continues through North Cambridge, Arlington, and Lexington, where it enters the Minuteman National Historical Park.
The road, by the same name, continues northwest and west, through many different cities and towns. It largely parallels or joins Route 2 and Route 2A, all the way into central Massachusetts, with a few gaps at towns that have different names for the central road.
For much of its length, Massachusetts Avenue is a center of commercial activity, especially through the larger towns. Apartments, shops, and restaurants fill both sides of it, and there is a lot of pedestrian traffic.
A number of linear parks cut across various portions of Mass. Ave., including the Southwest Corridor Park, the Commonwealth Avenue portion of the Emerald Necklace, the Charles River Bike Path, the Cambridge Linear Park, Alewife Brook Reservation, and the Minuteman Bikeway.Boston
Concord (signed as Great Road from Hanscom Field to the town bypass; route through town unclear; resumes on the Concord Turnpike west of town)
Lunenburg signs Route 2A as Mass Ave, but there is no defined route through Shirley or Ayer.
On the night of April 18–19, 1775, Paul Revere rode his horse down a portion of this road (then known as the Great Road) on his "Midnight Ride." On April 18–19, 1775, William Dawes and Samuel Prescott also rode on portions of this road on their way to Concord. (These travels were on the Cambridge side of the Charles River; the Harvard Bridge was not constructed until the 1880s.)
Massachusetts Avenue was formed at the end of the nineteenth century from what were separate roads. In Boston the road was previously called East Chester Park south of Chester Square and West Chester Park to the north (Chester Square is in the South End and is now called Chester Park). Across the river in Cambridge the road follows part of what was once Front Street near the Massachusetts Institute of Technology and then follows the former Main Street to Harvard Square (Main Street originally ran between Kendall and Harvard Squares, and the part to the east of Central Square retains the original name). From Harvard Square to the Arlington line at Alewife Brook it follows what had been North Avenue since 1838, and prior to that the Road to Menotomy. In Arlington it follows the former Arlington Avenue, and in Lexington it follows the former Main Street south of the Battle Green and the former Monument Street north of the Battle Green.
Massachusetts Avenue is served with direct connections for a number of the MBTA's bus and subway routes between Lexington and Boston.
Direct bus connections on Mass Ave include: 1, 8, 10, 15, 16, 17, 43, 47, 55, 62, 64, 66, 67, 68, 69, 70/70A, 71, 72, 73, 74, 75, 76, 77, 78, 79, 83, 86, 91, 96, 170, 350, 351, CT1, CT2, CT3, a stop on the Silver Line bus, and LexPress.
MBTA Subway stations, from west to east, include: Porter, Harvard, and Central along the Red Line; both the Hynes Convention Center and Symphony along the Green Line; and a station along the Orange Line under the Mass Ave. name. An additional stop at Arlington Center was mooted during the 1980s Red Line extension but ultimately was not constructed.
Two MBTA Commuter Rail stations are located on Massachusetts Avenue, Porter in Cambridge and Newmarket at the South Bay Shopping Center in Dorchester.