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...
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...
I work for a municipality and when things slowed down a bit last year I began the learning curve on a few of the free packages since I had a couple of big drainage basins that needed to be analyzed.
What I found is that SWMM is a really nice program. However, it really doesnt seem built for...
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...
I looked into that in the past. There are "spreader" devices that discharge water in a sheetflow manner. Also creating a very broad earthen weir is what some people do.
I should clarify that I work for the municipality, not a local private firm. I need to do some research on local runoff, or...
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...
I have been trying to pursuade local engineers from using the modified rational, though its been allowed here in the past.
On a few small sites recently both methods were used for comparison and the required storage was around double (sometimes more) when using the NRCS analysis.
Based on...
Thanks for all of the replies. I certainly understand that big projects could never receive the attention that the should during 'off hours'.
Once again, my itentions were more for things like percolations tests for indivisual homeowners, small drainage studies subbed out from the primary...
RDK, y
You basically cut and paste the same post over and over again throughout these forums. I have received your message, as has everyone else one these boards. I don't know what motivates your sentiments, but whatever it is I need some in the form of a breakfast snack.
I really don't...
You are correct. I apologize for being unclear.
Regarding E&O insurance: Can one policy cover two engineers working in a parntership (ie- A policy that covers the entire LLC or Corp)? Or does each engineer need seperate coverage?
"Even if you did not sign an employment contract which forbids moonlighting, you may have an Employee Policy Manual that covers it.
I do think that as a municipal employee the appearance of a conflict of interest is very real, if you perform work within the municipality's jurisdiction. Fox...
David, thanks for the input. A plotter is something I would only consider if I found out I really needed it after a couple of medium sized projects. I am basically just trying to find a way not to pass up small jobs as I get offered by word of mouth. Currently, I pass on these small...
Are you suggesting that for some things that I put my stamp on, I may not need E&O insurance? If this is true, that is the type of information I am looking for.
Assuming I was paying for E&O insurance, how it is typically quoted? Obviouly, if I only generated $1000 of revenue, I would be...
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"...
Yea, heh, that's what I was thinking too.
I'm not an expert, but it seems to be that if you only need a 1" weir then you are probably talking about a small area and very little runoff.
Is it not possible to just detain everything and let the storage volume simply percolate/evaporate? Maybe...
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...
Ive been tinkering with SWMM. It's intruiging because of the price and alleged flexibility.
However, as far as I can tell, the methods it uses to calculate runoff are theoretical, and I get much smaller peak flow rates than I do with TR-55 using the "unit hydrograph" method.
You can specify...
Thanks for the info. I've been busy and haven't had a chance to dive into the demo yet. I wish I had the benefit of a course to go along with the demo version; it appears to be fairly intricate upon initial inspection... and I have not been using GIS for very long either.
It may be worth checking your local governemnt's regulations regarding stormwater management. I think most cities, or counties, have storm water manuals that dictate how flood routing and detention should be designed.
I like the format of the Georgia stormwater manual. The have specific...
