×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

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

Stone armoring under storm water pipe inlets and outlets

Stone armoring under storm water pipe inlets and outlets

Stone armoring under storm water pipe inlets and outlets

(OP)
What has me wondering is I nearly always see the bottom of a pipe inlet or outlet armored with rock (apron as I call it) and then only sometimes see up the sides and on top of the culvert armored. This is in agricultural drainage work, commercial developments, drive culverts, and road projects.


Culverts may be designed to operate submerged and sometimes, you can get fasting moving water and almost a sucking at the entrances, it makes sense to armor all around in those instances. On outlets are folks at times just requiring the apron to be armored, not up the side slopes and over the top of the culvert? On most outlet flows I see it as a good thing to have, but when I really think about it I cannot see a reason to have it other than it gives me some extra feel good.

RE: Stone armoring under storm water pipe inlets and outlets

In my design world, I would say that what you are seeing when you see the armoring around the end of a pipe is a temporary erosion control scenario (SWPPP). We use a smaller rock to protect the soils around these drainage appurtenances for that reason. We use it behind headwalls around pipe end sections and around catch basin concrete aprons.

RE: Stone armoring under storm water pipe inlets and outlets

This subject has been discussed recently. Search the various rooms and likely that recent post and comments will show up.

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


Resources

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