of NY 34. By 1926, all of legislative Route 30 west of Rochester was designated as part of NY 31. In the late 1920s, however, NY 31 was realigned to follow Ridge Road west from Porter to Lewiston. In the 1930 renumbering of state highways in New York, NY 34 became part of an extended NY 18 while New York State Route 3E was assigned to the portion of former legislative Route 30 between Red Creek and Oswego. NY 3E was renumbered to New York State Route 3F . Establishment of US 104 US 104 was assigned across Upstate New York in April 1935, extending from Niagara Falls to Maple View via Lewiston, Rochester, and Oswego. It overlapped NY 18 from Niagara Falls to Lewiston and replaced NY 3 and NY 31 from Lewiston to Maple View (except from Red Creek to Oswego, where US 104 followed NY 3F instead). As a result, NY 31 was shifted south onto most of its modern alignment while NY 3 was rerouted south of Watertown to follow what had been NY 3D. Although US 104 was technically a child route of US 4, it did not connect to US 4. A highway extending eastward from US 11 and US 104 at Maple View to NY 13 in Williamstown was designated as NY 126 . When it was first assigned, US 104 dipped south to serve downtown Rochester instead of bypassing it to the north. US 104 left Ridge Road at Lake Avenue and followed Lake Avenue and State Street south to Main Street in downtown. It followed Main Street and Winton Road to Empire Boulevard, where it turned east to rejoin Ridge Road in Webster. It was rerouted to continue east on Ridge Road over the Veterans Memorial Bridge and through Irondequoit to Culver Road. US 104 turned here, following Culver Road south to Empire Boulevard and the latter east to Winton Road, where it reconnected to its original routing through the city. The realignment created a significant overlap with NY 18, which joined US 104 in the vicinity of Kodak Park and separated at Culver Road, where it headed north instead. Conversion to expressways Work began in the 1940s on new super two alignments for US 104 in Wayne, Cayuga, and Oswego counties. The new highway was built on a routing parallel to that of Ridge Road and served as a bypass