Massachusetts Route 203

Route 203
Map of Suffolk County in eastern Massachusetts with Route 203 highlighted in red
Route information
Maintained by MassDOT
Length:	5.34 mi[1] (8.59 km)
Existed:	early 1970s – present
Major junctions
West end:	Centre Street in Boston
	Route 28 in Boston
East end:	I‑93 / US 1 / Route 3A in Boston
Location
Counties:	Suffolk
Highway system
Massachusetts State Highway System Interstate US State ← US 202 Route 204 →

Route 203 is a 5.5-mile (8.9 km) state-numbered route in Boston, Massachusetts, United States, running from old U.S. Route 1 in Jamaica Plain east to Interstate 93/U.S. Route 1/Route 3 and Route 3A at Neponset. It runs along the Arborway, Morton Street and Gallivan Boulevard, all parkways formerly part of the Metropolitan District Commission system of parks and roads.

Maintenance

Morton Street

Prior to the creation of the Massachusetts Department of Transportation (MassDOT) in 2009, the route was owned and maintained by the Department of Conservation and Recreation (DCR, previously the Metropolitan District Commission). On November 1, 2009, the Msgr. William Casey Highway overpass in Jamaica Plain, Morton Street in Mattapan and Gallivan Boulevard in Dorchester were transferred to MassDOT, while the Arborway continued under DCR.^[2][3]

History

Route 203 was formed in the early 1970s as part of a large Boston-area renumbering. Most of the route had been part of Route 3, which came south along The Jamaicaway with U.S. Route 1 and split to the east along present Route 203. Route 3 turned south at Granite Avenue to join the Southeast Expressway in Milton, and Route 3A began where Route 3 turned. With the renumbering, Route 3 was kept on the Southeast Expressway into downtown, Route 3A was truncated to its current end, and the former Route 3 and Route 3A became Route 203. While the former routes had been signed north–south, the new route was signed east–west.

The only other change has been the removal of U.S. Route 1 from the west end of Route 203; it no longer ends at a numbered route at its west end.

Major intersections

The entire route is in Boston, Suffolk County. ^[1]

mi[1]	km	Destinations	Notes
0.000	0.000	Centre Street
2.581	4.154	Route 28 (Blue Hill Avenue)
5.34	8.59	I‑93 / US 1 north – Boston Route 3A south – Quincy
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

References

External links

Streets and squares in Boston
Streets	Arborway Atlantic Avenue Beacon Street Bennington Street Blue Hills Parkway Bowdoin Street Boylston Street Brattle Street Brookline Avenue Charles Street Columbus Avenue Commonwealth Avenue Congress Street Court Street Day Boulevard Dorchester Avenue Federal Street Fenway Franklin Street Gallivan Boulevard Hanover Street Huntington Avenue Jamaicaway Massachusetts Avenue Melnea Cass Boulevard Memorial Drive Milk Street Morrissey Boulevard Morton Street Neptune Road New Chardon Street Newbury Street North Street Park Street Park Drive Riverway School Street Soldiers Field Road State Street Stony Brook Reservation Parkways Storrow Drive Summer Street Tremont Street Truman Parkway Union Street Veterans of Foreign Wars Parkway Washington Street West Roxbury Parkway Winter Street Yawkey Way
Squares, circles, crossings and corners	Adams Square Andrew Square Blackstone Square Brigham Circle Central Square Chester Square City Square Cleveland Circle Codman Square Copley Square Day Square Dewey Square Dock Square Downtown Crossing Dudley Square Egleston Square Fields Corner Franklin Square Haymarket Square Hyde Square Jackson Square Kenmore Square Louisburg Square Maverick Square Packard's Corner Park Square Peabody Square Post Office Square Roxbury Crossing Scollay Square Sullivan Square Teele Square Thompson Square Union Square Uphams Corner
Italics denote streets and squares that no longer exist. See also Neighborhoods in Boston Transportation in Boston