The bottom portion of the wood stringers of my basement stairs have rotted. The concrete flooring must of been poured in around them, so now I have two rectangle shaped holes a few inches deep mostly filled with rotted wood. Additionally, when there is heavy rain the water pools in these holes. It seems as if the water is coming from the ground up.
Would it be ok, after removing the rotted wood, to plug the holes with new concrete? (And then replace the stairs)
Thanks for any advice.