Storm drainage design using Storm and Sanitary Analysis 

Dear Sir I was using Microdrainage, where I am pleased to SSA software to introduce it to my clients and the local authority for planning approval. I have got the following question, can you send me relevant tutorials or answer, please. 1. Model foul flows using discharge units to BS EN 752. is there any example available please 2. Produce Greenfield rate calculations using IH124 method. 3. Allow the application of climate change factors to rainfall data. Typically 30%. Where and how can I apply climate change please. I am looking for a response from you soon, please. Thanks for your taking time. Kind regards Sherwan Mohammed

Rainfall intensity would be based on the IDF curve he loaded in for the area in question (Galway I think it was). IDF stands for Intensity Duration Frequency and differs from area to area.

Trying searching Google for an IDF Curve database for your region. In UK it would be the Environment Agency or MET office etc.

This! The rainfall comes in with the curve, you don't have to manually input it.

Dear Sir I was using Microdrainage, where I am pleased to SSA software to introduce it to my clients and the local authority for planning approval. I have got the following question, can you send me relevant tutorials or answer, please. 1. Model foul flows using discharge units to BS EN 752. is there any example available please 2. Produce Greenfield rate calculations using IH124 method. 3. Allow the application of climate change factors to rainfall data. Typically 30%. Where and how can I apply climate change please. I am looking for a response from you soon, please. Thanks for your taking time. Kind regards Sherwan Mohammed

That’s just the way I did it in the video. Perhaps it’s an oversimplification to show only manholes, but that suited the site layout I was working with. Branch connections can also be done if you need them.

You should contact the software vendor with those questions.

Good question. I “inherited” that IDF file from a previous colleague. I’m not sure what the precise origins of it are.

@@CADandStuff Dear Sir I was using Microdrainage, where I am pleased to SSA software to introduce it to my clients and the local authority for planning approval. I have got the following question, can you send me relevant tutorials or answer, please. 1. Model foul flows using discharge units to BS EN 752. is there any example available please 2. Produce Greenfield rate calculations using IH124 method. 3. Allow the application of climate change factors to rainfall data. Typically 30%. Where and how can I apply climate change please. I am looking for a response from you soon, please. Thanks for your taking time. Kind regards Sherwan Mohammed

Hi Dave, I had the same question, like yours, have you find out about IDF file, please? if not what do you use instead of IDF, please? Many thanks

Hi. I think those questions are best addressed to the vendors of SSA, Autodesk. They will provide technical support for their software. I do not have examples or tutorials to answer those queries.

Yes, you can create your own. They vary by region, so you would have to have some statistical data to work from in your area. Some national weather services departments make IDF curves freely available online, so have a search.

Have you found out about IDF curve please?

Send me an email

@@CADandStuff Thanks for the answer. My email is ingjosuepiano1985@gmail.com

Please email me, I don’t send new emails out, but if you email me I will reply.