http://www.energy.alberta.ca/OilSands/791.asp
Total oil sands production (mined and in situ) reached about 2.3 million barrels per day (bbl/d) in 2014. Source: Alberta Energy Regulator (AER)
From the article here, it sounds like the projects exploiting the "best dirt" are developed and ready to go so the construction job boom would have dried up anyway along with the local spending that goes with it.
Watch how they blame it all on the NDP ...
One ray of sunshine is that, in times of war, our neighbours to the south have a continental supply to fuel, if necessary, in case Fortress North America comes to pass.
I can hear Forrest Trump now.
"2.3 bbl/d? When ever I need it? That's good to know. One less thing to worry about."
In the mean time, why don't we put some of those construction engineers to work.with some of that infrastructure money. Let`s refine enough to supply Canada's gas and petrochemical needs? 
And guarantee OUR energy needs in the event of international madness.