Portal:U.S. roads/Selected article/November 2006

New York State Route 104 (NY 104) is a 182 mi long east–west highway in Upstate New York, USA. The entire length of the road was designated U.S. Route 104 (US 104) until 1972, except for locations near Rochester where the highway has since been moved onto expressways. NY 104 travels from NY 384 near the Rainbow Bridge in Niagara Falls in Niagara County to NY 13 near Altmar in Oswego County. Route 104 primarily runs parallel to the south shore of Lake Ontario throughout most of its route between the Niagara River in Niagara Falls and the Oswego River in Oswego.

Before US 104 was created, the roadway carried a number of designations, namely NY 3, 18 and NY 31. All three of these routes were reconfigured to allow for the designation of US 104.

Over time, the 104 designation has been shifted from surface streets to expressways and Super-2s, particularly from Rochester east to Oswego. The first such realignment occurred in the late 1940s in western Wayne County and was completed by the realignment of NY 104 onto the Irondequoit–Wayne County Expressway' near Webster in the early 1980s.

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