Interstate 84 (I-84) is a part of the Interstate Highway System that runs from Dunmore, Pennsylvania, to Sturbridge, Massachusetts, in the eastern United States. In New York, I-84 extends 71.46 miles (115.00 km) from the Pennsylvania state line at Port Jervis to the Connecticut state line east of Brewster. As it heads east–west across the mid Hudson Valley, it goes over two mountain ranges and crosses the Hudson River at the Newburgh–Beacon Bridge.

Port Jervis is a city located at the confluence of the Neversink and Delaware rivers in western Orange County, New York, United States, north of the Delaware Water Gap. Its population was 8,775 at the 2020 census. The communities of Deerpark, Huguenot, Sparrowbush, and Greenville are adjacent to Port Jervis. Matamoras, Pennsylvania, is across the river and connected by the Mid-Delaware Bridge. Montague Township, New Jersey, also borders the city. The Tri-States Monument, marking the tripoint between New York, New Jersey, and Pennsylvania, lies at the southwestern corner of the city.