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  1. atwtr

    Rainfall Data/Pond Failure

    Hi Group, I would like pose 2 questions: 1. I'd to model runoff from an actual 3-hour duration storm event. I have 3 precipitation values for each hour of the recorded event. How is this best accomplished? 2. I'd like to include flow from a pond failure in the model to occur at the peak...
  2. atwtr

    Gravel Pit CN

    Peter, thanks for the response. The floor of the pit is tightly packed gravel material, which is acting more like impervious area than pervious stone. I'm attempting to model runoff from the surface. I've started using a CN of 76 for "gravel roads, A soils". I've also considered using a CN...
  3. atwtr

    Gravel Pit CN

    Hello, Does anyone know of a good reference for a curve number (CN) to represent the floor of an actively mined gravel extraction operation?
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