Pennsylvania - Interstate 376, Interstate 76
When I-80S was changed to I-76, several branch routes were also assigned numbers, including I-376 as seen here. Scan of 7/11/1972 Pittsburgh Post-Gazette article courtesy of Adam Prince.
11/30/71
When I-80S was changed to I-76, several branch routes were also assigned numbers, including I-376 as seen here. Scan of 7/11/1972 Pittsburgh Post-Gazette article courtesy of Adam Prince.
11/30/71