Discouraging find this weekend. My 24 x 48 garage has a serious problem, at least 1 6x6 post is rotting out. These posts are rough cut true 6in x 6in popular, set about 4' deep in concrete. Then walls were built, then pad poured inside. Not easy to inspect other posts and will work just 1 at a time. Does not appear to be any wood left in concrete pour under 6x6-seems to be just rot and dirt.
Looking for suggestions of how to repair.
My first thought is to start carving with the chain saw a 4 x 4 recess into the 6x6, auger as deep as possible in the concret pour, then jamb a treated 4 x 4 into the augered concrete pour and recessed 6 x 6. Bolt the 4x4 to the 6x6 and repour concrete to set 4x4 and pack concret up to support bottom of remaining 6x6.
Any other ideas?