The lower 2/3rd of my lot drains exceedingly well, comprised of barely covered big river bottom rock.
That also makes such a good base for the driveway that the roadway specs eliminate 6" of the base course requirements.
The upper 40% of that driveway is over nicer soils, so I will have to craft a base of larger rock and then 4" of CSBC ( Crushed Stone Base Course) that is typically 1.25" minus.
I can eliminate the CSTC ( Crushed Stone Top Course) for a concrete pour.
I can "hard way Jones" the whole thing in with the excavators, or I can rent a dozer for a day over the weekend and rough it in. I am quite comfortable either way, having built many roads over the years.
After I rough it in I will stake it very carefully. The rock placement is going to be critical, as I will not be putting base rock in that 3' wide strip that will get vegetation to promote infiltration. Gravel base is also considered an impervious surface in the storm water manual.
The mini has a 42" wide smooth bucket and the big machine has a 4' wide one. I will make each runner base out of 2~4" crushed rock at least 6" thick, and fill in the gap with some of those well draining soils. That rock will be pricey, figure about $2000 for the big rock if I go get it and $3000 if I get it delivered.
When I excavate the ~300 CY for the basement I will grade and separate that material for various uses. Some of it will be perfect to go between the runners.
When I get the sub grade done it will be 10' wide with 4' wide runners and a 2' strip that will drain well. That will be my construction road for bringing in the concrete, pump trucks, and construction materials.
After I am done beating that surface up building the house, I will tune that up, and use the 4" layer of CSBC to build a perfect grade. I will have offset staking down the one side of the subgrade that is set to grade every ~50' and is 2' away from the edge of the runner. I will set that grade with a combination of the slope laser and swedes.
The flatwork will be done all around the house before that, and no more need of heavy trucks.
We will start at the carport apron slab and use 2x6 for the most part and bender board if needed for the curves.
My brothers and I will set the forms on painted lines as we drive the truck down the driveway. We'll place bar in there that is pre-tied and dobied, and cut crack control grooves every 15' or so with the groove trowel.
If I am on my own it will be one truck a day.
After we cream it up nice, I think we might stamp it, maybe color it.
I think it would look cool as cobblestones, for example.
Or I could be tired enough to give it a quick cross broom and be done
The runners are probably narrower than this sidewalk. If I do a truck a day that means finishing about 75' a day of two runners.