Forum discussion
NC-2009 SSc6.1: Stormwater Design—Quantity Control
In case 1, we are required to perform a site run off calculation for 1 yr-24 hr design storm and 2 yr-24 hr design storm for both pre- and post- development period. can you pls clarify how this actually determines the cf/storm quantity? We are having difficulty understanding the difference.
LEEDuser is supported by our premium members, not by advertisers.
Go premium forTo post a comment, you need to register for a LEEDuser Basic membership (free) or login to your existing profile.
Why do the requirements focus on 1-year and 2-year, 24-hour storms?
How can green roofs count as a stormwater control measure?
I have 100-year data—how do I convert to 2-year?
Are there special considerations for international projects?
What performance threshold do I need to achieve for an Exemplary Performance point?
Michael DeVuono
Regional Stormwater LeaderArcadis North America
LEEDuser Expert
187 thumbs up
June 16, 2014 - 4:21 pm
Stormwater runs off with a rate and volume.
How this rate and volume is determined requires about 9 semester hours of hydrology courses, and is beyond the scope of this forum. I recommend you consult with a civil engineer to perform this work for your project.
sona prajapati
1 thumbs up
August 25, 2014 - 2:43 am
Dear Michael,
We have found a sample calculation to determine storm water rate and quantity for 1 yr-24 hr design storm and 2 yr-24 hr design storm from www.illinoisfloods.org/.../4D_Stormwater%20Volume%20and%20Treat.... We would like to know about the process followed in this website is correct for the solution or not?