i23
22 runs in an east-west direction. Odd numbered ones run N-S, even run E-W (generally)
Interstate 90 does run through Washington.
Interstate 10.
Interstate 70 and Interstate 76
The answer is Interstate highway an U.S.highway
California State Route 1; Interstate 95
I-90 and I-94 are east-west interstate highways in Montana.
Interstate 17 runs north and south. It connects Phoenix, Arizona, to Flagstaff, Arizona.
I-90 and I-94 are east-west interstate highways in Montana.
Interstate compacts
To avoid conflicts in interstate relations
To avoid conflicts in interstate relations