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  1. bperry

    Rip-Rap/Conduit outlet protection sizing

    Actually, I did find something just the other day. There are actually a few good spreadsheets in excel format that I found for Detention design, Channel design, culvert design, etc. Go to: http://www.udfcd.org/ and click on spreadsheets/downloads I thought it was helpful. See for yourself and...
  2. bperry

    DAM BREAK EXAMPLES

    Can anyone provide some examples or problems using Dam Break? Also does anyone know where I can download a user manual with good examples or instructions? I realize Hec-1 has the Dam Break interface, but mainly I'm looking for example problems to get a better feel for the modeling/software.
  3. bperry

    Reference for Orifice Coeficients

    Thanks for the "extra verbage." I use n=0.013 for RCP myself. Again, it is conservative; better safe than sorry. I also use ADS N-12 pipe wherever the agencies will allow. As to my original question, I have no problem using 0.6 and making the review agency happy. However, at the same...
  4. bperry

    Reference for Orifice Coeficients

    Can someone tell me the typical values used for orifice coefficients used in the design of outlet structures and cite me a reference? We are talking about a typical 4x4 concrete coutlet structure with a 3"-4" 1st stage orifice. I typically use 0.7 as the orifice coefficient (seen it...
  5. bperry

    Cost Estimate Based On CAD drawings.

    I had an idea for software that could be useful for pricing out/putting together bond estimates and construction cost estimates for projects. Is anyone aware of a program that utilizes AutoCAD (linework) that can extrapolate a list of quantities for a job based on layers used in the CAD drawing...
  6. bperry

    Rip-Rap/Conduit outlet protection sizing

    Is anyone aware of a relatively "simple" program (Excel, Mathcad,Dos-based) that will solve for Rip-Rap size and/or design of Conduit outlet protection? this is primarily for purposes of Soil Erosion and Sediment Control.

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