Not exactly an ICF questions but it has to do with my ICF basement. I have 6 footers that need to be poured to support lolly columns in my basement for the first floor structure. What is the best way to get my radon/vapor barrier around these posts/footers? Should I put small pieces of plastic under them and pour the concrete on top of/in the plastic? FWIW I have duraskrim reinforced poly sheeting I will be using.

Is there a basement slab going over these footers?

Form a Drain for the footers.

yes there will be a slab

If the slab is going over the footings, just pull the slab vapor barrier over the footings.

The slab wont be going over the footing. They will stick up above the finished slab height. Plus the footers will have posts positioned on them before any poly is laid down

I'm probably the last one that should be asking this but why would you do it this way?

More common practice is what ronmar was alluding to. Pour footings first and allow the slab to extend over them. Most often when I was building houses the lolly columns would be installed on the footings before the slab went in and we would finish the slab around them.

If the main vapor barrier needed to go in after the columns, we would put a small piece of the barrier under the column and later seal the barrier to it. I have heard of GC's tapping the barrier to the columns for a seal but if the column would happen to not be air tight, you've just installed a vapor chimney right into your basement.

I had a customer do this about 3 years ago. He was parsimonious and decided to skip the stone to lift the sub base up to the level of the footings. It didn't turn out well. Even though the excavation had been open for some time, the addition of the weight of the slab made the sand settle more over time. It didn't happen all the way around the perimeter but did leave a height difference in areas of up to 1/2" .

Put the plastic under the support pads and caulk the slab plastic to them later. Do the same with the outside strip footings. Not only will it give you a good moisture barrier, it will prevent "damp rising."

I forgot to give the rest on my answer. If your going to pour the slab even with the footing I would install 5/8 or 3/4 rebar pins in the footing form before the pour. This should hold the slab at the right level.