Where is the longest stretch between other Interstates on an Interstate?
Between Interstates of any type: I-80 in NV/UT, unsigned I-580 to I-215 (511 miles) Between signposted Interstates: I-80 in CA/NV/UT, I-5 to I-215 (647 miles) Between 2di’s: I-80 in CA/NV/UT, I-5 to I-15 (650 miles) See Question 3.6.2 for the longest distance between freeway exits to any type of road.