Interstate 78 (I-78) is a major east-west highway in the United States, stretching approximately 144 miles. It begins in Pennsylvania and runs through New Jersey, ending at the Holland Tunnel in New York City. The highway serves as a vital transportation route, connecting various cities and facilitating commerce. I-78 was established in 1956 as part of the Interstate Highway System. It passes through several urban and rural areas, providing access to important locations such as Allentown, Bethlehem, and Newark. The highway plays a crucial role in regional travel and freight movement.