Building an Arctic highway is hard. Doing it on thawing permafrost is even harder

By Samuel Wat – CBC

Constructing a highway on permafrost is not without challenges. And experts say the key to an infrastructure project such as the Arctic economic and security corridor is sustained maintenance.

A warming climate is changing the dynamics for infrastructure projects even though roads built on permafrost have been a northern reality for decades. Researchers and builders are of the consensus that warming ground temperatures are shortening winters and increasing costs, concerns that loom large as the federal government eyes the Arctic economic and security corridor for potential fast-tracking.