Bronx, both bridges ultimately connected to Bruckner Boulevard, with the Third Avenue Bridge making the connection via Lincoln Avenue and 135th Street. Bruckner Boulevard carried only NY 1A southbound from Lincoln Avenue to Willis Avenue, where NY 1A north left the latter street to join the southbound route. Now a unified route once again, NY 1A followed Bruckner Boulevard northeast through the southernmost part of the South Bronx to the Bronx River, where the surface street merged into the Bruckner Expressway. From here, NY 1A was routed along limited-access highways for the remainder of its length. It followed the Bruckner Expressway east to the Bruckner Interchange, where the route turned north onto the Hutchinson River Parkway. NY 1A proceeded along the parkway through the eastern part of the Bronx and Pelham Bay Park to Westchester County, where it ended at an interchange with US 1 just north of the New York City line in the village of Pelham Manor. NY 1A would end on the off-ramp to US 1 (now exit 7 on the Hutchinson River Parkway), while the Hutchinson River Parkway continued northeast through Westchester County toward the Connecticut state line. History New York City did not have posted routes until mid-December 1934. Earlier plans, drawn up in 1932 and 1933 by the New York Automobile Club, took US 1 through the Holland Tunnel and north through the upper east side of Manhattan. However, by 1934, the approaches to the George Washington Bridge were completed, and so US 1 was rerouted to use that bridge and cross through upper Manhattan. NY 1A was assigned to what had been planned as US 1 south of Fordham Road and the Bronx and Pelham Parkway, using the following streets: Sixth Avenue from the Holland Tunnel north to Houston Street (northbound only, as it had become one-way since the 1933 plan; southbound traffic used Varick Street) Houston Street from Sixth Avenue (and Varick Street) to Second Avenue Second Avenue from Houston Street north to 23rd Street 23rd Street from Second Avenue east to First Avenue First Avenue from 23rd Street north to the Willis Avenue Bridge Southern Boulevard (now partly Bruckner Boulevard) from the Willis Avenue Bridge northeast to West Farms Road West Farms Road from Southern Boulevard to Boston Road Boston Road from West Farms Road to Fordham Road (US 1) and the Bronx and Pelham Parkway In December 1937, the Hutchinson