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  • Users: geosavvy
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  1. geosavvy

    Integrating GIS with Stormwater modelling software

    I work for a municipality and we are beginning a city-wide survey in an attempt to update our infrastructure inventory. All data will be catalogued in an ArcGIS database. We would like to utilize the data to model stormwater runoff of the entire city so that we can isolate existing flood...
  2. geosavvy

    Breach analysis using HEC-RAS

    I am currently working on putting together some standards for dam breach analysis requirements. I have been researching some requirements for other states & counties to see what types of regulations are employed elsewhere. It seems that most jurisdictions will consider a dam to be "high...
  3. geosavvy

    Design Review Software?

    I was curious if any of you know of good commercial design review software that is used to markup/review cad drawing. I have been testing Autodesk Design Review, but Find it a bit clumsy. We are hoping to move towards an electronic submittal and review process for engineering plans, but I...
  4. geosavvy

    Peak Flow Rate - pre vs post

    Currently our cities' Storm Water regulations dictate that the post-development peak flow rate must not exceed the pre-development peak flow rate. However, the regulations do not take into account the nature of the flow. What I mean to say is that you can have a pre-development condition where...
  5. geosavvy

    What does it take to make moonlighting work?

    I currently work at a municipality doing... well, all the things that a city engineer does. Previously I worked with a geotechnical consulting firm for 5 years. In discussing "moonlighting" with our HR director, I was informed that our policy is not to perform any engineering work "on the side"...
  6. geosavvy

    SWMM vs TR-55 for Runoff

    Using the same rainfall events and identical subcatchments, the peak flow rate (at the outlet) is much smaller in SWMM than TR-55. Does anyone have any experience comparing the output of these two programs/methods? Basically, it appears to me that SWMM uses one of three methods to determine...
  7. geosavvy

    WMS and GIS - questions

    Is anyone familiar with WMS? Its a software package created by ems-i and it is advertiesed as being able to integrate well with GIS applications. It has been requested that I review this software. I am curious is there are other "better" similar software packages out there, or is this one of...
  8. geosavvy

    CN Adjustments based on slope

    Does the NRCS support any type of adjustments to CN values based on ground slope? If not, are there any adjustment factors out there that are universally accepted by engineers? I have a site that contains grades of 15-20% over a large portion of the site and I would be interested to know if...
  9. geosavvy

    SWMM 5 - question regarding time steps and dates

    I've been going through the learing curve on SWMM 5 over the past couple of weeks. I'm currently at an impass in trying to figure out what the program is asking for under Simulation Options, under the Dates tab. The want start/end dates (and times) for the simulation, start date/time to begin...
  10. geosavvy

    Modified Rational vs NRCS?

    I work for a municipality and currentlly our storm water manual does not list the Modified Rational as an option for using during pond design. I am currently reveiwing a set of calculations where the civil engineer used the Rational Method (within pond pack) for sizing the detention vault. I...
  11. geosavvy

    New to Storm Water - some basic questions

    I've worked for a geotechnical firm for 5 years and now im suddently working for a municipality and getting caught up to speed on storm water design. I'm still trying ot get clear in my head the basic methodologies involved with designing a storm water conveyance and detention system. We have...

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