Massachusetts Route 103

Route 103
Map of Bristol County in southeastern Massachusetts with Route 103 highlighted in red
Route information
Maintained by MassDOT
Length:	4.92 mi (7.92 km)
Existed:	1930 – present
Major junctions
West end:	Route 103 in Warren, RI
	I‑195 in Somerset
East end:	US 6 / Route 138 in Somerset
Location
Counties:	Bristol
Highway system
Massachusetts State Highway System Interstate US State ← Route 102 Route 104 →

Route 103 is a west–east state highway in southeastern Massachusetts.

Massachusetts Route 103 is a continuation of R.I. Route 103. It begins in Swansea at the Warren line, heading eastward as Wilbur Avenue. It crosses the Cole River before entering the village of Ocean Grove. As the route enters Somerset it crosses the Lees River, just east of its junction with Exit 4 of I-195. (Part of the exit structure is linked to Lees River Avenue, which ends at Route 103 just west of the rest of the exit.) From there it continues eastward, north of Brayton Point and the Dominion Resources power station before Wilbur Avenue turns northward, intersecting with Riverside Avenue at the end of Brayton Avenue, where all three roads formerly met the Slade's Ferry Bridge. Route 103 then continues northward along Riverside Avenue to its end at intersection with the former alignment of U.S. Route 6 and Route 138 just west of the former Brightman Street Bridge, before US Route 6's realignment to the new Veteran's Memorial Bridge. Route 138 continues northward along Riverside Avenue from the new bridge, creating a gap between the end of 103 and the northward curve of 138.