Canada
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Alberta Highway 3A -
British Columbia Highway 3A -
Manitoba Highway 3A -
Newfoundland and Labrador Route 3A (Team Gushue Highway) -
Nova Scotia Trunk 3A (former)
The following roads are numbered 3A:
Alberta Highway 3A 
British Columbia Highway 3A 
Manitoba Highway 3A 
Newfoundland and Labrador Route 3A (Team Gushue Highway)
Nova Scotia Trunk 3A (former)
Massachusetts Route 3A 
Nevada State Route 3A (former)
New Hampshire Route 3A 
New York State Route 3A 
Oklahoma State Highway 3A 
Texas Park Road 3A | Browse numbered routes | ||||
|---|---|---|---|---|
←  Route 6 | N.E. | →  Route 6B | ||
U.S. Route 3 (US 3) is a United States Numbered Highway running 277.90 miles (447.24 km) from Cambridge, Massachusetts, through New Hampshire, to the Canada–United States border near Third Connecticut Lake, where it connects to Quebec Route 257.
New York State Route 3 (NY 3) is a major east–west state highway in New York, in the United States, that connects central New York to the North Country region near the Canada–US border via Adirondack Park. The route extends for 245.88 miles (395.71 km) between its western terminus at an intersection with NY 104A in the Cayuga County town of Sterling and its eastern terminus at a junction with U.S. Route 9 (US 9) in the Clinton County city of Plattsburgh. NY 3 traverses eight counties and is a lakeside roadway from Mexico to Sackets Harbor, a mountainous route in Adirondack Park, and an urban arterial in Fulton, Watertown, and Plattsburgh.
Route 3A is a 97-mile-long (156 km) state highway in eastern Massachusetts, which parallels Route 3 and U.S. Route 3 from Cedarville in southern Plymouth to Tyngsborough at the New Hampshire state line.
New York State Route 3A is an east–west state highway in Jefferson County, New York, United States, that was established in the 1950s.
