New York State Route 270

State highway in western New York, US

NY 270 was assigned as part of the 1930 renumbering of state highways in New York. The route once extended as far south as NY 5 and as far north as NY 104; however, it was gradually truncated to its current length as other routes were realigned or extended onto NY 270's alignment.

NY 270 begins at an intersection with NY 263 (Millersport Highway) in the town of Amherst NY 270 proceeds north through Amherst as Campbell Boulevard, a two lane commercial street. The route quickly becomes residential and enters the hamlet of Getzville, where it intersects with County Route 45 (CR 45; Dodge Road). After CR 45, NY 270 continues north, immediately crossing under the lanes of I 990 (Lockport Expressway). After I 990, the route continues north along Campbell Boulevard as a two lane residential roadway through Amherst, entering an intersection with CR 299 (North French Road). After CR 299, NY 270 bends northwest along Campbell Boulevard as the two lane residential street through Amherst, with the residences becoming less dense as the route proceeds north. Large fields begin to surround NY 270 through Amherst as the route bends northeast into an intersection with CR 2 (Tonawanda Creek Road). Just east of that intersection is the Duane B. Rodke Memorial Athletic Field, where NY 270 crosses over Tonawanda Creek via a truss bridge. Now in the Niagara County town of Pendleton, NY 270 intersects with CR 60 (North Tonawanda Creek Road). Through Pendleton, the route remains rural, passing homes and large fields as it proceeds north. Both extents of NY 270 were realigned slightly by 1932. In the vicinity of Eggertsville, the route was reconfigured to follow Bailey Avenue and Grover Cleveland Highway between Main Street and Eggert Road. Near Lockport, NY 270 was shifted southward onto Hinman Road and Ohio Street. The latter change was made as part of a larger realignment of NY 3 through central Niagara County. The realignment of NY 270 near Lockport was short lived as the route was moved back onto Campbell Boulevard c. 1935; however, it was also truncated to end at the junction of Campbell Boulevard and Saunders Settlement Road. NY 270 was truncated again in the mid 1930s after U. S. Route 62 (US 62) and NY 18 were realigned to follow Bailey Avenue between Main Street and Sheridan Drive (NY 324).

By 1935, NY 270 was realigned to bypass North Forest and Stahl Roads by way of a new section of Millersport Highway. Initially, NY 263 overlapped with NY 270 along Millersport Highway; however, the overlap was eliminated in the late 1940s after NY 270 was truncated to begin at NY 263 in Getzville. Similarly, NY 270 initially overlapped with NY 93 along Junction Road from Lower Mountain Road to US 104. At Lower Mountain Road, NY 93 left NY 270 and proceeded east toward Lockport on Lower Mountain and Gothic Hill Roads. In the late 1970s, NY 93 was realigned to use Junction and Upper Mountain Roads instead. As a result, NY 270 was cut back to its junction with Upper Mountain Road. On November 1, 2005, the Niagara County Legislature voted on a measure that, if passed, would allow the county to ask the New York State Department of Transportation (NYSDOT) to remove the NY 93 designation from Upper Mountain Road, a county maintained highway, and reassign it to Junction Road (NY 270) and Saunders Settlement Road (NY 31). The change was intended to eliminate truck traffic on Upper Mountain Road while providing additional capacity to NY 93. This part of the agenda was passed.

On December 1, 2008, the bridge carrying NY 270 over Tonawanda Creek (also the Erie Canal) was closed to traffic to allow construction to begin on a replacement bridge over the creek. The existing bridge was built in 1941 and considered to be structurally deficient. During construction, commuter traffic was detoured onto Tonawanda Creek and Bear Ridge Roads while trucks were instructed to follow NY 263, NY 78, and NY 93 around the closed bridge. The new bridge was opened to traffic in July 2009.