From KLAS-TV:

“They’re talking about ports in Mexico being expanded in the years ahead. Those goods, we’d rather not see them go up the congested corridor of Interstate 5 along California’s border or coast. We’d rather see them come up inland, through an area that would be available to carry all this traffic and all this freight. A lot of jobs, a lot of warehousing, a lot of construction jobs to build this type of system,” said Nevada Department of Transportation Deputy Director Rudy Mafalbon.

The proposed super-port of Punta Colonet in Baja California, Mexico could have a direct line north to Las Vegas, if an interstate was built through western Arizona.

Federal numbers show that building a mile of freeway through rural areas costs around $8 million, which would make Interstate 11 cost more than $2 billion.