I-40 Through Arizona and New Mexico: The Southwest Gauntlet

Destroyed pavement, desert heat, Kingman grades, and a road that truckers say is trying to shake their equipment apart

Interstate 40 replaced Route 66 as the primary east-west freight corridor across the American Southwest, and it has inherited all of Route 66’s exposure to one of the most demanding environments a highway can occupy: desert heat, expansive terrain, sparse services, and a climate that destroys road infrastructure faster than maintenance budgets can keep up with it. Between the California border and the Oklahoma state line, I-40 passes through approximately 1,000 miles of some of the roughest pavement on the US interstate system.

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