Currently I am doing a commercial site grading and I need a go by plan to clarify some question that I have, do you guys know any site or go by plan on internet that I can download?
In USA, each State has a permitting process for stormwater management (or at least all the states i've worked in). A permit is issued by the state. Anyone can go to a State website and download adobe pdf files of permitted projects. There must be thousands out permitted commercial site plans on the web. Many agencies require the full set to be permitted and online with the backup calcss, but Grading/Drainage plans should definately be on the websites. Every now and then i surf the sites to:
1. see what standard of care is being accepted by the State
2.to see what our local competition is up to
3. Use as a reference when we are working on a site that has had permitted work done in the past and is doing new work.
4. Steal a detail... whooh hah hah ha.... [Dracula laugh]
i'm not going to throw any caveots or warnings out there about, because i wouldn't know where to start...
there are numerous other requirements for a good grading plan besides just drainage. Just looking at a random plan on the internet will not shed much light on these requirements or the thought process used to establish the grades. Anybody that is just learning needs a good mentor that can answer the questions as well as pose the correct questions that must be answered.
If your an Engineer looking for a couple good references on site plans, here are a couple books I have found helpful:
1 - Land Development Handbook (Planning, Engineering, and Surveying) by McGraw Hill
2 - Land Development for Civil Engineers by Dion
3 - Civil Engineering Reference Manual, of course
There seems to be very little information out there "instructing" engineers how to develop "good" grading plans. Quality grading and storm drain design may take more time, hence cost more, at the outset, but can save clients hundreds of thousands of dollars...
Long answer, not sure if I asked your question as it was rather vague. Possibly I can be of better help if you are more specific.
You will need to check the local codes (town, city or county) as well. The localities may have a stricter code for erosion and sediment control, and stormwater than the state code. Most cities or towns will have codes on parking, landscaping, street grades, etc., as well.