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  • Users: notsocivil
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  1. notsocivil

    DETERMINING Q-pre

    Hello all, I am in the process of doing storm calcs for a relatively small site that is mostly developed (85-90% impervious). The site is a redevelop and I am trying to determine the best way to determine my pre-develoepd runoff rates. I am using the rational method. The redevelopment consists...
  2. notsocivil

    Storm Sewer Programs

    Hello, Does anyone know of a free storm sewer program with a graphical user interface available for download? Something similar to hydraflow? I used to use Hydraflow but have switched jobs and was given Qhec-12. Any suggestions would be greatly appreciated. Thanks
  3. notsocivil

    Flowrate

    Hello all, Please help I am struggling with a water distribution model that says I am okay with kypipe but when I do it by hand I am not sure how it will work. I basically have a parallel pipe system (a six inch that splits into a 6" and an 8") I know the flowrate and pressure (670gpm)...
  4. notsocivil

    HydroCAD Modified Rational Method

    Hello, Does anyone know if HydroCAD will create a hydrograph using the modified rational method and if so can it be created using typical storm durations Tc, 1.5Tc, 2Tc, etc? Thanks....
  5. notsocivil

    Device routing for Multiple ponds in series

    Hi all, I am trying to model a basin that is divided into three separate basins by 2 concrete walls. Think of a rectangle divided into three equal areas. The walls will have small orifices so i can get my water quality and then have weirs on top for quantity. The last basin (#3) will have the...
  6. notsocivil

    WALLER METHOD

    Hi all, Does anyone know where I can find information regarding the 'Waller Method' or the 'Pagan method' for approximating detention storage requirements? One of the municipalities we do work for references the method in there SW design specs for small sites < 5acres. I have asked around here...
  7. notsocivil

    Subdivision epanet model help.

    Hi all, I am a new engineer and I am trying to model a distribution network for a subdivision. The layout is basically a teardrop with spurs coming off the teardrop. The spurs end with fire hydrants. I am using epanet2 to model the pipe line and I am absolutely clueless. The required fire...

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