National Boards > General Highway Talk
Highest route number you have traveled at least two unrelated routes
Some one:
Actually, now that I remember I think it's now I-90 and US 90.
Duke87:
I too have the "this depends on if you consider ND 1806 and SD 1806 related" conundrum.
If you do, the answer is 985 (I- and PA)
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