Pennsylvania
New York
This will not be the first time the I-86 designation is used in the East. The number was a "temporary" designation for I-84 between Hartford, CT and Sturbridge, MA, while the I-84 extension was planned to go into Providence, RI.
The new I-86 will provide a toll-free alternative to the New York Thruway, once completed.
Previously, this road was NY 17.