Interstate 95 (I-95) is the main north–south Interstate Highway on the East Coast of the United States, running from U.S. Route 1 (US 1) in Miami, Florida, north to the Houlton–Woodstock Border Crossing between Maine and the Canadian province of New Brunswick. The highway largely parallels the Atlantic coast and US 1, except for the portion between Savannah, Georgia, and Washington, D.C., and the portion between Portland and Houlton in Maine, both of which follow a more direct inland route.
I-95 serves as the principal road link between the major cities of the Eastern Seaboard. Major metropolitan areas along its route include Miami, Jacksonville, and Savannah in the Southeast; Richmond, Washington, Baltimore, Wilmington–Philadelphia, Newark, and New York City in the Mid-Atlantic; and New Haven, Providence, Boston, and Portland in New England. The Charleston, Wilmington, and Norfolk–Virginia Beach metropolitan areas, the three major coastal metros bypassed by the highway's inland portion, are connected to I-95 by I-26, I-40, and I-64, respectively.
I-95 is one of the oldest routes of the Interstate Highway System. Many sections of I-95 incorporated preexisting sections of toll roads where they served the same right-of-way. Until 2018, there was a gap in I-95's original routing in Central New Jersey caused by the cancelation of the Somerset Freeway. An interchange between the Pennsylvania Turnpike and I-95 was completed September 22, 2018; this allowed I-95 to be rerouted along the Pearl Harbor Memorial Turnpike Extension of the New Jersey Turnpike into Pennsylvania, creating a continuous Interstate route from Maine to Florida for the first time. while statistics provided by the I-95 Corridor Coalition suggest that the region served is "over three times more densely populated than the U.S. average and as densely settled as much of Western Europe". According to the Corridor Coalition, I-95 serves 110 million people and facilitates 40 percent of the country's gross domestic product.