With the new dining room wall holding up the 2nd floor, it seemed like a good time to remove the rotted 8" by 8" timber that was under the old dining room wall, as well as the rotted floor joists.

So, with a chainsaw and a dust mask, I had at it.  First section:

Middle section (Hey, what's holding up that wall?):

Last section out and in the back yard. The original floor joists were keyed into the notches in this beam. :

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Time to install some new beams & joists in the basement.  Stay tuned.