What is the highest route number where you have been on two distinct routes?
Do not count ... I-794/WI 794
Well, mine happens to be 794. While I have been on (and clinched) both I-794 and WI-794, I have also been on (and clinched) NV794.
My highest with
three different, unrelated routes is 610 (I-610 (both TX and LA), MN610, and NV610).
My highest with
four different, unrelated routes is 371 (US371, CO371, MN371, MO371).
My next highest combo of different routes is actually traveling on 210
seven times (I-210/CA210, AL210, AZ210, MN210, MO210, PE210, WY210). I-210 and CA210 are related so counting that as one route.