INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

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.

Jobs

Dam Breach Outlet

Dam Breach Outlet

(OP)
The Texas Commission on Environmental Quality (TCEQ) Dam Safety Program document GI-364 "Hydrologic and Hydraulic Guidelines for Dams in Texas" 8.3 Breach Parameters / Breach Configuration (Embankments) requires a breach width minimum of 3 times the height of water being impounded and vertical side walls. HydroCAD does not allow for vertical sidewalls for the DAM Breach outlet. The minimum notch angle (NAngle) is 20 degrees. I am trying to come up with the best model I can to have the equivalent flow going through the breach outlet. Higher peak flows are acceptable, but that impacts the spillway design and the downstream inundation area, especially the box culverts under a roadway just downstream from the dam. Can I override the NAngle parameter?

RE: Dam Breach Outlet

For a rectangular breach, just leave the notch angle blank.

For complete details click the Help button on the outlet screen.

Peter Smart
HydroCAD Software
www.hydrocad.net

RE: Dam Breach Outlet

(OP)
Thanks. I read the manual and the error message was pretty clear, but I did not read the Help display. I will always start there before posting any more questions.

RE: Dam Breach Outlet

(OP)
I know the rectangular Dam Breach Outlet is in the very extensive Help file, but (IMHO) it might be useful to also mention it in the Documentation. Or even a data check of (Notch Angle) .LE. 0 or Null ==> Rectangular Breach Outlet.

RE: Dam Breach Outlet

The help file *is* the primary documentation for all HydroCAD input screens. Just click the Help button on any screen for detailed help on that specific screen. In fact, that's exactly how I determined the answer to your question.

Peter Smart
HydroCAD Software
www.hydrocad.net

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!


Resources


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