Pan-American Highway (North America) - United States (Contiguous)

United States (Contiguous)

Note: The Pan-American Highway is almost never referred to by name in the U.S. Additionally, it may have multiple branches.

Many roads in the United States are considered to be a part of the Pan-American Highway, but no one route has been officially declared.

In 1932, a bill introduced to the U.S. Congress proposed, among other roads, a route from Duluth, Minnesota, to Laredo, Texas, to connect with the Pan-American Highway in Mexico; this route probably followed today's Interstate 35. When the section of Interstate 35 in San Antonio, Texas was built, it was named the Pan Am Expressway, as it lies along this route. However, this route was never officially named the Pan-American Highway.

Interstate 25 in Albuquerque is named the Pan-American Freeway, and it along with part of Interstate 10 and U.S. Route 85 are officially parts of the CanAm Highway.

U.S. Route 81 claims to be part of the Pan American Highway from Wichita, Kansas to Watertown, South Dakota.

The proposed Interstate 69 extension from the Canadian Border in Michigan to Mexican Border in south Texas has been referred to as the NAFTA Superhighway, which will link to an official branch of the Pan-American Highway after crossing the border between Laredo, Texas and Nuevo Laredo, Tamaulipas.

The Pan-American Highway unofficially has four terminals entering into Mexico, with the Inter-American Highway beginning at the border crossing between Laredo, Texas, and Nuevo Laredo, Tamaulipas.