Steep Storm Drain
Steep Storm Drain
(OP)
I've got a 20 foot drop from an existing 42" oulet pipe that needs to drain to a creek 78 feet away. I was initially thinking about a concrete lined open channel with step-downs to slow the velocity. I believe an open channel would cause a liability for the client. (That could be a heck of a water slide.) I think drop structures would work but I'm still going to have steep slopes on the pipe or major drops in the structures. I read some of the threads on this but I'm still not sure if a structure could handle a 10' drop over time. Any other ideas?





RE: Steep Storm Drain
Hydrology, Drainage Analysis, Flood Studies, and Complex Stormwater Litigation for Atlanta and the South East - http://www.campbellcivil.com
RE: Steep Storm Drain
see attachment
RE: Steep Storm Drain
RE: Steep Storm Drain
RE: Steep Storm Drain
RE: Steep Storm Drain
See attachment: 8' diameter - 80' long
Compaction is always important for all pipe installations.
RE: Steep Storm Drain
RE: Steep Storm Drain
RE: Steep Storm Drain
Mike McCann
MMC Engineering
Motto: KISS
Motivation: Don't ask
RE: Steep Storm Drain
Design procedure and figures (HEC 14) at http://w
RE: Steep Storm Drain
RE: Steep Storm Drain
A couple additional things to consider, to expand on what the other forum members have suggested, is aquiring the expertise of a geotechnical engineer for the overall slope stability, pipe installation and possibly using pipe anchors and ensuring the outlet(if using a engergy dissipator) will not overturn to name a few.
Also, contatct a contractor in your area, that you trust or vaule their opinion that has done similar types of work on slopes. Can you actually construct what you are proposing? What are the complications? How do you construct the project? etc
Hope this helps.
RE: Steep Storm Drain