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  1. efejr28

    Rational method application

    Hello everyone. I am wondering about the rational method applicability. For less than 160ac & retention facilities... But for more than 160ac. and detention facilities use HEC-1 modeling... ok. I have seen the rational method where instead of intensity (in/hr), only inches are used. What is the...
  2. efejr28

    earthwork puzzle

    Hello everyone! I am working with an earthwork for a rough grading set of plans. The site is divided into two parcels. I first calculated and earthwork for the whole site; existing ground against rough grade (1), existing ground against finish grade (2), and rough grade against finish grade (3)...

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