Hi! Dr. Wait. Millions of thanks for your lessons and sharings. Finding a source for teaching water management is so hard. Thank you very very much again.
Dear Isaac, Thanks for the best Course and your good effort to spread the knowledge all over the world, God Bless your Effort, further please can I get the Excel sheet please, I'm not able to get it through the web
Hi Dr. Wait, thank you so much for your videos. I know this is an older video, but hopefully you see this as I have a question. For the sum of CA for pipe B: Why would we only sum the product of C and A, and not use the weighted/composite C value (Sum of CA/sum of A) ? Is this because the flow from A is coming directly from pipe A and not draining from area A in to CB2? Thanks so much in advance!
Hi Dr. Wait, your lectures are really excellent! I have learned a ton through your classes on TH-cam. Curious to get your thoughts on Hydrology Studio or Stormwater Studio vs StormCAD. Have you worked with those at all? Second question - it seems your online lecture notes/supporting documentation don't include this spreadsheet. Would it be possible to share the spreadsheet?
I'm not sure if I screwed a calculation up or not because it might be the software. I'm using SWMM as I don't have access to StormCAD and it constantly shows Pipe A as flooded and capacity at over 1.0. I need a much bigger pipe size than what you have in the spreadsheet to stop that. Is that meant to be the case or are my simulator params wrong? Edit: I figured it out, I accidentally set the C values to 75 and 55 instead of 0.75 and 0.55. Now it works as I expect! We don't flood the pipe
Sorry if it is a dumb question. But I am interested in knowing for the time of concentration how did you determined that the Overland flow time for the second watershed was 30 min. Is this typically obtained by area size based on your locality? They typically give a minimum to use lets say around 10min for overland flow time. But how could you have obtained that on your second watershed an overland travel time was 30?
I keep on watching everyday you videos.. Is it possible to have a rainfall intensity of 100mm/hr? how about 400mm/hr? I am confused of heavy rainfall category just greater than 7.5mm/hr a way to far. I love the rational method for run-off but its seems the result is too small diameter of culvert if manning's formula is applied for just 6000 sq. meter land
Hello Sir, thank you for the lecture. I have a question, on 36.50, why you didn't sum up the overland flow time and cumulative upstream time for the Tc of pipe B? Thanks in advance
Hi -- thanks for the question. You don't add them because both things are happening at the same time, not in sequence. 30 minutes overland flow time is how long it takes the water in the east watershed to travel over the surface to CB2. 11.56 minutes is how long it takes water to travel over the surface of the west watershed (10 min) and then through the pipe A (1.56 min). We want to know how long until all of the areas adding water to Pipe B are contributing to flow in that pipe, and it is the longer of the two times -- 30 minutes. Best regards.
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Hi! Dr. Wait. Millions of thanks for your lessons and sharings. Finding a source for teaching water management is so hard. Thank you very very much again.
@@lpszambak thank you - appreciate your kind note. Best wishes.
Hi Isaac. Thank you for sharing. Would you kindly share the pipe sizing spreadsheets please.
How much is your weimaraner cost for storm drainage.
Thank you
Dear Isaac,
Thanks for the best Course and your good effort to spread the knowledge all over the world, God Bless your Effort, further please can I get the Excel sheet please, I'm not able to get it through the web
Yes, if you provide an email address then I will send you the Excel file.
Hi Dr. Wait, thank you so much for your videos. I know this is an older video, but hopefully you see this as I have a question. For the sum of CA for pipe B: Why would we only sum the product of C and A, and not use the weighted/composite C value (Sum of CA/sum of A) ? Is this because the flow from A is coming directly from pipe A and not draining from area A in to CB2? Thanks so much in advance!
Hi Dr. Wait, your lectures are really excellent! I have learned a ton through your classes on TH-cam. Curious to get your thoughts on Hydrology Studio or Stormwater Studio vs StormCAD. Have you worked with those at all? Second question - it seems your online lecture notes/supporting documentation don't include this spreadsheet. Would it be possible to share the spreadsheet?
I'm not sure if I screwed a calculation up or not because it might be the software. I'm using SWMM as I don't have access to StormCAD and it constantly shows Pipe A as flooded and capacity at over 1.0. I need a much bigger pipe size than what you have in the spreadsheet to stop that. Is that meant to be the case or are my simulator params wrong?
Edit: I figured it out, I accidentally set the C values to 75 and 55 instead of 0.75 and 0.55. Now it works as I expect! We don't flood the pipe
how would you design 5 and 100 year storm.. what about overland flow routes etc?
Sorry if it is a dumb question. But I am interested in knowing for the time of concentration how did you determined that the Overland flow time for the second watershed was 30 min. Is this typically obtained by area size based on your locality? They typically give a minimum to use lets say around 10min for overland flow time. But how could you have obtained that on your second watershed an overland travel time was 30?
Is there anyway to see the example spreadsheet or a copy of this powerpoint?
Lecture notes and supporting files available at: sites.google.com/view/yt-isaacwait
I keep on watching everyday you videos.. Is it possible to have a rainfall intensity of 100mm/hr? how about 400mm/hr? I am confused of heavy rainfall category just greater than 7.5mm/hr a way to far. I love the rational method for run-off but its seems the result is too small diameter of culvert if manning's formula is applied for just 6000 sq. meter land
Hello Sir, thank you for the lecture. I have a question, on 36.50, why you didn't sum up the overland flow time and cumulative upstream time for the Tc of pipe B? Thanks in advance
Hi -- thanks for the question. You don't add them because both things are happening at the same time, not in sequence. 30 minutes overland flow time is how long it takes the water in the east watershed to travel over the surface to CB2. 11.56 minutes is how long it takes water to travel over the surface of the west watershed (10 min) and then through the pipe A (1.56 min). We want to know how long until all of the areas adding water to Pipe B are contributing to flow in that pipe, and it is the longer of the two times -- 30 minutes. Best regards.
Hi