In 2019 ADOT started its study of possible I-11 routes from Nogales to the Yavapai border. Eventually, I-11 will be a major north/south corridor between the Mexican and Canadian border.
Last week ADOT released the most recent impact and route study. You can read all the documents on the ADOT website, but here are some highlights including an interactive map you can use to see details of the preferred route and recommended alternative routes.
Environmental Impact Report
Corridor Study
Preferred Route Report
The public comment period is July 16, 2021 to August 16, 2021.