page_title: New York State Route 427
section_title: Origins and designation
hierarchical_section_title: New York State Route 427 / History / Origins and designation
caption_attribution_description: Signage at the former eastern terminus of New York State Route 379 in Southport, New York. From the 1930s to 1978, New York State Route 427 continued straight (into the background) here and NY 379 began to the left. In 1978, NY 427 was rerouted onto NY 379 and NY 427's former routing became New York State Route 961K, a reference marker for which is present here. NY 961K no longer exists.
context_page_description: New York State Route 427 is an east–west state highway in Chemung County, New York. It extends for 11.5 miles from its western terminus at an intersection with NY 14 in the town of Southport, south of the city of Elmira, to its eastern terminus at an interchange with I-86/NY 17 in the town of Chemung. Between those two towns, the highway passes through the town of Ashland and serves the village of Wellsburg. Much of NY 427 follows the Chemung River.
  The route number 427 was assigned in the early 1940, and replaced the ennumeration New York State Route 17D. Route 17D was established as part of the 1930 renumbering of state highways in New York. It originally began in downtown Elmira and ended at the Pennsylvania state line in Chemung. NY 427 was realigned on its east end in 1967 to meet the newly constructed exit 59 on NY 17 and on its west end in 1978 to follow what had been New York State Route 379 through the town of Southport. Other minor realignments occurred during the route's history.
context_section_description: Most of what is now NY 427 was originally designated as NY 17D in the 1930 renumbering. NY 17D began at the intersection of East Water Street (NY 17) and Madison Avenue (NY 14 and NY 17) in downtown Elmira. NY 17D headed west, overlapping NY 14 along Water Street to Lake Street, where NY 17D turned south and followed Lake Street and Pennsylvania Avenue over the Chemung River to Maple Avenue. Here, NY 17D turned to the southeast to follow Maple Avenue through southern Elmira. At Cedar Street, NY 17D joined the modern alignment of NY 427. From this point east, NY 17D followed what is now NY 427 to Wyncoop Creek Road in Chemung. From Wyncoop Creek it continued on Wilawana Road to the Pennsylvania border.
  In the months immediately following the 1930 renumbering, NY 14 was routed on Pennsylvania Avenue and South Main Street through southern Elmira. By 1935, NY 14 was rerouted to follow Pennsylvania Avenue into downtown. As a result, all of NY 17D north of the junction of Pennsylvania and Maple avenues became concurrent with NY 14. The overlap was eliminated in the early 1940s when NY 17D was pulled back to the intersection of Pennsylvania and Maple avenues and renumbered as NY 427.
caption: 2004 photo of signage at the intersection of Cedar Street and Maple Avenue in Southport. Until 1978, NY 427 continued straight and NY 379 began to the left.
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