The deck off the rear of my house is supported by three post that sit on cement blocks with standoff post bases. The middle post's base has completely rusted out. I was hoping to replace just the post base but even the anchor bolt that attaches the base to the cement has rusted.
I was planning on supporting the deck with a bottle jack and temporary post while I remove the middle post and base but the rusted anchor bolt has me wondering what to do to securely anchor a new post base. Can I saw off the anchor so that it is flush with the concrete block and somehow drill it out to put in a new anchor? As an alternative, could I drill 4 holes in the cementaround the old anchor for lag shield type cement anchors to hold a new post base in place? I really don't want to break up and remove the old cement and replace with new cement and anchor. Am I approaching this the right way? Any suggestions on what to do would be appreciated.
TIA