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|Length:||143.56 mi (231.04 km)|
|Existed:||1957 – present|
|West end:||I-81 in Union Township, PA|
|I-95 / N.J. Turnpike in Newark, NJ|
|East end:||Canal Street in New York, NY|
On the west, it starts at Interstate 81 northeast of Harrisburg, Pennsylvania. It passes through Allentown, Pennsylvania, and western and northern New Jersey. It goes in the Holland Tunnel to end in Lower Manhattan in New York City.
I-78 is a major road linking ports in the New York City and New Jersey area to points west. Over 4 million trucks use it annually. Trucks are 24% of all traffic. Truck traffic on the road is projected to rise once the widening of the Panama Canal is completed in 2015. With a wider canal, more Asian ships are expected to use East Coast ports.
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Interstate 78 Facts for Kids. Kiddle Encyclopedia.