Ripraping or Riprapping: How To spell?
The word Ripraping is misspelled against Riprapping, which is present continuous of "Riprap"
Riprapping has double "pp" is mispronounced as "p"Remember double 'PP' in between the strings ripra & ing which should not be misspelled with single 'P'
Wrong Spelling:  ripra-p-ing  Correct Spelling:  ripra-pp-ing 
Find more wrongly spelled words of Riprapping to spell it well.