Fixing the slab and then breaking it ...... $%#!

Raise your hand if you thought tree roots could crack and push a concrete slab up almost an inch.  I certainly did not but that is what happened.  Below is the culprit the concrete guys excavated.  It's not even that big!  Imagine a big root!  OK, that tree needs to go.

Here is an illustration of the cut out portion of the great room.  Pretty big area.

Dowel into existing slab

Finally going to patch up where the plumbing was moved.  I almost let my contractor pour this with bags.  I'm glad I did not since he was not aware that without dowels and mesh even a small area like this could settle and cause issues for my flooring.

OK, so everything above looks great.  But it's about time we had a little screw up.  That column is a point load on which the end of a 14' span LVL sits.  Lots of mass.   Not as easy to see in this picture, but there is a crack to the right of that column.

I put a level on that crack and was not surprised to see that it was 1/2" out of level.  shit.  should have known that would happen since 

(1) I suspected there was not footer on an interior wall

(2) Breaking up the concrete on one side essentially made a concrete peninsula on which the largest interior load sits.  duh.

OK, not time to panic.  Only do that after kids use a sharpie on kitchen cabinets.   After discussions with GC, engineer, concrete guy we will

(1) Put some concrete blocks to the left of the column and then use a jack and some posts to temporarily support the LVL

(2) Use and LVL piece on the other side of the column to span between two posts that will temporarily support that side.

(3) Pull out column

(4) Concrete guys will dig 24" x 24" x 12" deep footing centered under column, per engineer's specs.

(5) Put the column back after concrete cures ...  then we can just use bags at a latter time to pour back the spot where the temporary support is. ....

All sounds great ... should be doing this tomorrow AM so concrete can still be poured on Saturday.  What could possibly go wrong ?

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Two days later 

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I am 99% satisfied.  There are two high spots the contractor should have dealt with.  One was a small heave in the slab he left behind that would have been super easy to cut off and  re-pour.  The other high spot is because he poured up to the temporary LVL supports.  I emailed him asking to grind them down before payment so we'll see how that goes ...

After the concrete dried, it is apparent there are some high spots.  The company was good about cutting them out and pouring again. However,  after the 2nd attempt one spot is still a bit high.  I'll have to see what the flooring guy says.  If it works for him it works for me.  Otherwise, I'll have to have the concrete guys back out.