A supercorridor would use swaths of land up to 1,200 feet (370 m) wide to carry parallel links of freeways, rails, and utility lines.
The North American SuperCorridor Coalition advocates for the construction of several such corridors through the United States, Canada, and Mexico.
[1] Still others are concerned about issues of national and state sovereignty, and the possible increased danger of terrorism, in the rapid transfer of individuals, goods and materials across borders[citation needed].
The study of Interstate 605 found that the corridor would be expensive and more than half of its length would not be economically feasible.
Acquisition of large swaths of land for such corridors has created questions about property rights and the use of eminent domain.