U.S. Route 5 in Massachusetts

U.S. Route 5
Map of central Massachusetts with US 5 highlighted in red
Route information
Maintained by MassDOT
Length:	53.46 mi (86.04 km)
Major junctions
South end:	US 5 in Enfield, CT
	I‑91 in Springfield Route 57 in Agawam US 20 in West Springfield I‑91 / I‑90 in West Springfield US 202 in Holyoke Route 9 / Route 10 in Northampton Route 2 in Greenfield Route 10 in Bernardston
North end:	US 5 in Guilford, VT
Location
Counties:	Hampden, Hampshire, Franklin
Highway system
United States Numbered Highway System List Special Divided Replaced Massachusetts State Highway System Interstate US State ← Route 4 US 5A →

U.S. Route 5 (US 5) is a north–south U.S. Highway extending from southern Connecticut to the northernmost part of Vermont. In Massachusetts, the route travels 53.5 miles (86.1 km), paralleling the Connecticut River and Interstate 91 (I-91) through Hampden, Hampshire, and Franklin counties.

US 5 stays very close to the Connecticut River and Interstate 91. It enters the state at the town of Longmeadow on the east bank of the river going up to Springfield. In Springfield, US 5 then overlaps with Interstate 91 (I-91) for about 0.5 miles (0.80 km), then separates as its own freeway crossing the Connecticut River on the South End Bridge into Agawam. The freeway portion travels for about 3.3 miles (5.3 km) up to West Springfield. From the town of Northampton up to Bernardston, US 5 travels concurrent with Massachusetts Route 10 (Route 10 for 26 miles (42 km). US 5 also passes through Holyoke, Hatfield, Whately, Deerfield, and Greenfield. As in Connecticut, and Vermont US 5 has many interchanges with the parallel I-91.