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Re: flag pole deflection

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The 2.5% limit is for Group I loading (Dead loads or Transverse loads from 
cables).  AASHTO does not consider deflection critical for temporary loading 
such as wind.  In the commentary Section 1.9.1(B), it states "For high-level 
lighting (pole type) designs, deflections of 10 percent to 15 percent of the 
pole height under design loads do not appear to be unreasonable."