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Recent content by DamEng1

  1. DamEng1

    Topsurv

    I currently running Topsurv v7.5 on a Topcon GRS-1 and I was wandering if any one knew a way to minimize Topsurv and open other programs?
  2. DamEng1

    Dam breach (Froehlich)

    Check out the link below. This is a paper done by Tony Wahl with USBR in 1998 that details several of the embankment dam breach equations...
  3. DamEng1

    RTK GPS Recommendations

    Sorry... of a foot.
  4. DamEng1

    RTK GPS Recommendations

    Within a couple tenths would be satisfactory.
  5. DamEng1

    RTK GPS Recommendations

    We're looking to upgrade from our antiquatated Trimble 4800 gps system to something more modern and I was wandering if anyone had suggestions. I am interested in either a Trimble or Tocon unit with a cellular modem but other than that I am kinda lost on what I really need. The primary use of...
  6. DamEng1

    Half-Moon Baffle in culvert calculation

    The steel plate will initially act as a sharp crested weir and then should transition to an orifice flow above the top of the pipe.
  7. DamEng1

    pipe software

    See "Hydraulics Formula" at the bottom of the page
  8. DamEng1

    pipe software

    I use a program from NRCS called Hydraulics for a lot of typical calculations such as riser and conduit, hooded inlets, etc. It is available for download at: http://www.il.nrcs.usda.gov/technical/engineer/engsprdshts.html
  9. DamEng1

    Pipe Depth of Flow

    Not sure what you are asking? Depth of flow at a given Q, like with Mannings Eq. or what?
  10. DamEng1

    how to model broadcrest trapezoidal weir in hydrocad

    When modeling trapezoidal earthen emergency spillways for dams in HydroCad, I generally use the following spreadsheet (http://www.mde.state.md.us/assets/document/damsafety/DambreakGuidelines/Spreadsheets/Hydraulics/SPILLWAY.XLS) developed by the Maryland Department of Dam safety and import a...
  11. DamEng1

    Peak Flow SCS vs. USGS

    In reality you are dealing with two different monsters: the SCS method was developed based on only a few watersheds and the results of the method are based on the predefined rainfall distribution (i.e. Type II, III, etc.), the standard or modified unit hydrograph you are using, CN, and the time...
  12. DamEng1

    HEC RAS unsteady flow adding storage area

    Sorry but I don't, I have very little experience with HMS and stray away from it as much as possible. It still has lots of bugs and little kinks that are a pain to deal with.
  13. DamEng1

    HEC RAS unsteady flow adding storage area

    Be sure and move the black and white center point directly over the node and just left click. I am using HEC-RAS 4.0 and it has worked multiple times.
  14. DamEng1

    HEC RAS unsteady flow adding storage area

    I just recently got HEC-RAS to work with an existing reach by going to the edit menu and selecting move object and moving the center of the storage area over the upstream node of the reach and then clicking that upstream node and it gave me the prompt.
  15. DamEng1

    HEC RAS unsteady flow adding storage area

    HEC-RAS seems to have a glitch in this area. You have to create the storage area first in your geometry and then create the reach and HEC-RAS will prompt you to connect the two.
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