Rochester Outer Loop

New York State Route 47
Rochester Outer Loop
Map of Rochester with NY 47 highlighted in red
Route information
Maintained by NYSDOT and the city of Rochester
Length:	19.34 mi (31.12 km)
Existed:	c. 1937 – March 18, 1980
Major junctions
West end:	NY 104 in Greece
	I-490 in Rochester
East end:	Culver Road in Irondequoit
Location
Counties:	Monroe
Highway system
New York Highways Interstate U.S. State Reference Parkways ← NY 46A NY 48 →

New York State Route 47 (NY 47) was a 19.34-mile (31.12 km) long state highway around Rochester in New York, in the United States. It formed a semicircle through the inner suburbs of Rochester, following expressways west and east of the city and surface streets south of Rochester. The western terminus of the route was at an interchange with NY 104 west of the city limits in Greece. The eastern terminus was at an intersection with Culver Road in Irondequoit mere yards from Lake Ontario. In between its western and eastern extents, NY 47 met Interstate 490 (I-490) twice. The limited-access highway portions of the route were known as the Rochester Outer Loop (or Outer Loop) in contrast to the Inner Loop around downtown Rochester.

NY 47 was originally routed along surface streets through the city when it was assigned c. 1937. It began at NY 31 in Gates and followed Howard Road and Brooks Avenue southeast into Rochester, where it continued eastward on Genesee Park Boulevard and Elmwood Avenue. NY 47 remained on the latter through Brighton to an area known as Twelve Corners. At this point, the route turned north onto Winton Road and followed that street through the eastern fringe of the city to Irondequoit, where NY 47 ended at a junction with U.S. Route 104 (US 104, now NY 404). The Outer Loop was constructed in stages, beginning with the portion of the Sea Breeze Expressway north of Ridge Road in the early 1950s. From that point on, construction progressed in a generally clockwise fashion around the city.