Bass on Bass

Thursday, May 19, 2011

My Parkway Elm's Future

  O.K. I know 2 independent arborists brought in by the village said it should come down, but being the stubborn cuss that I am, I came up with this plan to save it and eliminate up to ~90% + of the risk (0% risk being impossible for even the most ideal old trees)to passing motorists and pedestrians via storm winds. Note that the upper limb shown to be cut sort of twists around a more vertical one ~ same size at that crotch. The second picture is of the 3 generations of the von Rentzell boys around the tree on Mothers Day.
   I spent 2-3 hours studying (not to mention previous hours doing same) this morning, trying to figure the various loading factors and probable effects of actions of various limbs of the "problem" trunk branch of the tree in severe winds. I assumed torque to be the most important factor promoting failure per the "fault" involved and more horizontal limbs the likeliest to exert the torque.
  I just found out that the story about this tree loss is appearing in this week's issue of "The Doings", one of 2 prominent local papers.

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