Maybe driving in the woods, you would be driving that slow. At 70/CPM 30 MPH is $21/hour. In my area, the local Estes LTL yard is advertising linehaul at 65/CPM with drivers annual average being $95-120K$18/hr is more than many drivers make.
You'd need to be in the .70+ cpm area to be over that
I have read about the cost of living being much higher in Alaska, I can’t imagine any decent Class “A” driver working for $18/hr there.