As of June 27, 2014, the United States Route 15 going through New York State was redesignated as what motorway, running from central Pennsylvania through southern New York?
Interstate 99 Interstate 99 (I-99) is an Interstate Highway with two segments: one located in central Pennsylvania, and the other in southern New York in the United States. The southern terminus of the route is at exit 146 of the Pennsylvania Turnpike (I-70 and I-76) north of Bedford, where the road continues south as U.S. Route 220 (US 220). The northern terminus of the Pennsylvania segment is at I-80 near Bellefonte. The New York segment follows US 15 from the Pennsylvania–New York border to an interchange with I-86 in Corning. I-99 passes through Altoona and State College—the latter home to Pennsylvania State University—and is entirely concurrent to US 220, within Pennsylvania. Long-term plans call for I-99 to be extended southward along the US 220 corridor to an interchange with I-68 in Cumberland, Maryland.
New York State Route 306 New York State Route 306 (NY 306) is a north–south state highway in western Rockland County, New York, in the United States. NY 306 runs from NY 59 in the hamlet of Monsey to U.S. Route 202 (US 202) in Ladentown, on the western boundary of the village of Pomona. The road is currently 5.33 mi long; however, it originally extended south to the New Jersey state line and north to Willow Grove Road (former NY 210) when it was assigned as part of the 1930 renumbering of state highways in New York.