Interstate 476
Overview
Interstate 476 is a 132.1 miles (212.59 km) auxiliary Interstate Highway in the U.S. state
U.S. state
A U.S. state is any one of the 50 federated states of the United States of America that share sovereignty with the federal government. Because of this shared sovereignty, an American is a citizen both of the federal entity and of his or her state of domicile. Four states use the official title of...

 of Pennsylvania
Pennsylvania
The Commonwealth of Pennsylvania is a U.S. state that is located in the Northeastern and Mid-Atlantic regions of the United States. The state borders Delaware and Maryland to the south, West Virginia to the southwest, Ohio to the west, New York and Ontario, Canada, to the north, and New Jersey to...

 designated between Interstate 95
Interstate 95 in Pennsylvania
Interstate 95 is an Interstate highway running from Miami, Florida north to Houlton, Maine. In the U.S. state of Pennsylvania, the route is known by many as the Delaware Expressway, but is officially named The Vietnam Veterans Memorial Highway. and locally known as "95"...

 near Chester
Chester, Pennsylvania
Chester is a city in Delaware County, Pennsylvania, United States, with a population of 33,972 at the 2010 census. Chester is situated on the Delaware River, between the cities of Philadelphia and Wilmington, Delaware.- History :...

 and Interstate 81
Interstate 81
Interstate 81 is an Interstate Highway in the eastern part of the United States. Its southern terminus is at Interstate 40 in Dandridge, Tennessee; its northern terminus is on Wellesley Island at the Canadian border, where the Thousand Islands Bridge connects it to Highway 401, the main freeway...

 near Scranton
Scranton, Pennsylvania
Scranton is a city in the northeastern part of Pennsylvania, United States. It is the county seat of Lackawanna County and the largest principal city in the Scranton/Wilkes-Barre metropolitan area. Scranton had a population of 76,089 in 2010, according to the U.S...

, serving as the primary north–south Interstate corridor through eastern Pennsylvania.

Its numbering is unusual since although technically it is a spur the 4 implies that it is a bypass.
 
x
OK