Mid Cape Highway

U.S. Route 6
Grand Army of the Republic Highway
Map of the U.S. state of Massachusetts with U.S. Route 6 highlighted in red
Route information
Maintained by MassDOT
Length:	117.952 mi (189.825 km)
Existed:	1926 – present
Major junctions
West end:	US 6 in East Providence, RI
	I‑195 in Swansea Route 24 in Fall River Route 140 in New Bedford Route 25 / Route 28 in Buzzards Bay Route 3 in Sagamore
East end:	Route 6A in Provincetown
Highway system
United States Numbered Highway System List Special Divided Replaced Massachusetts State Highway System Interstate US State ← Route 5A Route 6A → ← Route 5 N.E. Route 6A →

U.S. Route 6 in Massachusetts (US 6) is a 117.952-mile (189.83 km) long portion of the cross-country U.S. Route 6 highway connecting Providence, Rhode Island to Fall River, New Bedford, and Cape Cod. In the Fall River and New Bedford areas, US 6 is a secondary highway paralleling Interstate 195. On Cape Cod, US 6 is the primary highway interconnecting the towns of the area. The expressway section in this area is also known as the Mid-Cape Highway. The route is also alternatively signed as the "Grand Army of the Republic Highway."

US 6 is a four-lane lane arterial road for approximately its first 54 miles (87 km) from the Rhode Island line (crossing into Massachusetts from East Providence to Seekonk) to the Cape Cod Canal, except for sections in New Bedford, where it runs along two one-way city streets, and Fall River, where it runs along a two-lane avenue.

US 6 enters Massachusetts into Seekonk, just south of Interstate 195. The first mile and a quarter passes through the busy Seekonk retail area. The route passes through Rehoboth and the western half of Swansea, with access to Interstate 195 at Massachusetts Route 136, which heads southward into Bristol County, Rhode Island. The road then crosses over I-195 at the latter's exit 3, just east of the terminus of Massachusetts Route 118. The road heads through the southern end of Somerset before crossing the Veterans Memorial Bridge over the Taunton River into the city of Fall River. On the Somerset end of the bridge, Massachusetts Route 103 ends and Massachusetts Route 138 joins US 6 to cross the bridge. Prior to late 2011, Routes 6 and 138 followed a previous alignment over the Brightman Street Bridge, which has since closed.