Can we get some support?

Our contractor began taking up the concrete around one of the support beams.  The beam had been encased in a concrete covering, and now we know why.  It was extremely rotted.  He also doesn't think the concrete floor was original, even though it's fairly old.  



No, it wasn't beavers that did this.  Water damage over
a century rotted away the wood.  Note how the beam
is resting on a steel plate underneath it.