Herring Pond Road, State Road, Warren Avenue, Sandwich Street, Main Street, Court Street, Summer Street, Duxbury Way, Tremont Street, Enterprise Street, Moraine Street, Ocean Street, Chief Justice Cushing Highway, Otis Street, Broad Cove Road, Lincoln Street, Washington Street, Southern Artery, Merrymount Parkway, Hancock Street, Neponset Avenue

Direction:

North/South

Southern Terminus:

Pilgrims Highway (MA 3) in Plymouth

Northern Terminus:

Southeast Expressway (I-93/US 1/MA 3) and Gallivan Boulevard (MA 203) in Boston

Distance:

53.44 miles

Counties:

Plymouth, Norfolk, Suffolk

Signed:

Yes

MA 3A is a local alternative to the Pilgrims Highway (MA 3) passing through the towns along the water between Cape Cod and Boston. It begins at the Pilgrims Highway (MA 3) a short distance north of the Sagamore Bridge (US 6). For most of its length, it runs east of the highway, although there is a short section in Kingston where it crosses over and is just west of the highway. It extends north to Boston, where it ends at an interchange with the Southeast Expressway (I-93/US 1/MA 3). Gallivan Boulevard (MA 203) begins at the same interchange.

There is also a second section of MA 3 further north that serves as a local alternative to the US 3 expressway.