UT
Interstates in Utah
5 Interstate routes run through Utah: 4 primary, 1 auxiliary.
Primary / North-south
I-15
San Diego to the Canadian border
Active Primary / East-west I-70Cove Fort to Baltimore
Active Primary / East-west I-80San Francisco to Teaneck
Active Primary / East-west I-84Portland to Echo
Active Auxiliary / Auxiliary I-215Inland Empire, Las Vegas, Salt Lake City
Notable