Contact US

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

How to calculate required storage volume with EPA SWMM 5.1?

How to calculate required storage volume with EPA SWMM 5.1?

How to calculate required storage volume with EPA SWMM 5.1?

Good day professionals,

Please, I want to model storm detention tank in EPA SWMM5.1, the project area is approximately 32 hectare, I need to know how much storage volume is required, given the permissible release rate of 83 l/s/ha.
Anticipating your help, and its highly appreciated.

Thanks in advance

RE: How to calculate required storage volume with EPA SWMM 5.1?

I recommend the hydrograph method: Take your inflow hydrograph and draw a straight line from the start of your storm to the allowable outflow. The area above this line and below the upper portion of the hydrograph is the approximate volume required to meet your outfall flow rate.

RE: How to calculate required storage volume with EPA SWMM 5.1?

To be clear, if you're doing the method gbam suggests, you start at zero and draw a line up and to the right at an angle, intersecting with the point at which the receeding limb of the proposed hydrograph equals the target outflow. Also to be clear, this is an estimate. To get your actual storage volume will require designing a pond and outlet works that matches what you want, and then routing the proposed hydrograph through that pond.

Hydrology, Drainage Analysis, Flood Studies, and Complex Stormwater Litigation for Atlanta and the South East - http://www.campbellcivil.com

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members! Already a Member? Login


Low-Volume Rapid Injection Molding With 3D Printed Molds
Learn methods and guidelines for using stereolithography (SLA) 3D printed molds in the injection molding process to lower costs and lead time. Discover how this hybrid manufacturing process enables on-demand mold fabrication to quickly produce small batches of thermoplastic parts. Download Now
Design for Additive Manufacturing (DfAM)
Examine how the principles of DfAM upend many of the long-standing rules around manufacturability - allowing engineers and designers to place a part’s function at the center of their design considerations. Download Now
Taking Control of Engineering Documents
This ebook covers tips for creating and managing workflows, security best practices and protection of intellectual property, Cloud vs. on-premise software solutions, CAD file management, compliance, and more. Download Now

Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close