Well I have a few issues with that.
#1: Unemployment is really low already. So for the economy to kick into high gear, you'd have to magically move a lot of people to better jobs, because at this point there is little room to lower unemployment. It's not like massive investment is going to make people work twice as many hours, so unless you import labor and force them to spend all their money locally, I don't see how the economy would boom.
#2: The big infrastructure spending spree. If it does happen, again we have low unemployment, so it will just make labor more expensive as demand increases at a time where workforce supply is constrained. Normally, you would invest significantly in infrastructure at a time when unemployment is really high, which would put a lot of people back to work, reducing unemployment, and then reap the productivity-enhancing benefits of the improved infrastructure as projects end. In parallel to that, employment for infrastructure ramps down, but the infrastructure itself leads to employment, so it's a smooth progression from government investment to free market investment, with unemployment staying low or going lower.
Right now the plan is to invest massively in infrastructure while unemployment is really low. So it will have a moderate to negative effect where it would usually have a positive one (lowering unemployment in hard hit sectors, usually construction), even if people jump from one failed sector into construction for some time as demand increases. But since the economy is already doing fairly well, there seems to be far more downside than upside ahead, so the risk is that the economy will start to contract as the projects are going through or ending. Then you end up with a fucked up situation: no money going in all those tolls and whatever scheme they have in mind to make a return on their investment, maintenance costs that go unfunded so infrastructure already starts to deteriorate, and if it happens sooner than later projects get canceled or corners get cut along the way as investors (government or private, same shit with a Trump administration) run for the exits.
Whatever the case, you'd almost hope for an economic crisis before this whole thing goes into motion. Right now it all seems more likely for the economy to go down more than up.
And yeah, raising rates doesn't sound like it would contribute positively, yet it's coming.