[Bring_Back_Shantz]

Not necessarily trout.
For a couple reasons.
1) I doubt permafrost heves all that much. I don't know how much permafrost they'd be building on, so who knows about this one.
2) Just because it gets colder longer doesn't necessarily mean that the frost heaves will be worse than say outside calgary. In fact, with all the melting and freezing we get here, it's probably worse. Up there it would just get cold and stay cold, no melting water to refreeze and push cracks open.

I don't know if that is all true, but I don't think it would be such a huge issure. They do have higways in Alaska and Siberia afterall.