Register free!

The Green Industry's Resource Center


Reply
 
Thread Tools   Display Modes
  #1  
Old 04-17-2013, 04:01 PM
ProTouch Groundscapes's Avatar
ProTouch Groundscapes ProTouch Groundscapes is offline
LawnSite Silver Member
 
Join Date: Nov 2007
Location: OH
Posts: 2,125
pick your brains on slope stabilization...

Hey guys, I have a customer for whom we are doing some landscaping and new lawn install. He just moved into a new development and has an issue in his back yard. About 50' from the back of the house his yard slopes down into a marsh area (have yet to verify if this is a natural wetland with GIS, eff the EPA...)

The problem is the slope is about 30-35* with a face run of about 50' down to the bottom from the crest of the back yard. He wants me to come up with some ideas on how to stabilize this area. There are some visible "cracks" at the crest area that shows the slope is settling as it was all excavated soil that was dozed and graded for the back yard. So I am thinking it will continue to settle.

My idea was to dig a trench at the crest to install some gravel and drain tile running parallel with the edge, wrapped in geotex with 2-3 discharge pipes running down the slope. After this, use a special slope seed mix and then add a rock layer of rip rap, rough avg. 6-12" limestone pieces over the face of the slope.

What do you guys think? My only concern will be future settling since this is already excavated soil just graded. I know I've seen Chris using that plastic matting with pockets on the bridge project he did last year, but he said it was a pain in the butt.

Any other ideas?
__________________
ProTouch Groundscapes LLC.
"Creativity Inspired By The World We Live In."
Reply With Quote
  #2  
Old 04-17-2013, 10:38 PM
Dirtman2007's Avatar
Dirtman2007 Dirtman2007 is offline
LawnSite Platinum Member
 
Join Date: May 2008
Location: Raleigh, NC
Posts: 4,320
Quote:
Originally Posted by ProTouch Groundscapes View Post
Hey guys, I have a customer for whom we are doing some landscaping and new lawn install. He just moved into a new development and has an issue in his back yard. About 50' from the back of the house his yard slopes down into a marsh area (have yet to verify if this is a natural wetland with GIS, eff the EPA...)

The problem is the slope is about 30-35* with a face run of about 50' down to the bottom from the crest of the back yard. He wants me to come up with some ideas on how to stabilize this area. There are some visible "cracks" at the crest area that shows the slope is settling as it was all excavated soil that was dozed and graded for the back yard. So I am thinking it will continue to settle.

My idea was to dig a trench at the crest to install some gravel and drain tile running parallel with the edge, wrapped in geotex with 2-3 discharge pipes running down the slope. After this, use a special slope seed mix and then add a rock layer of rip rap, rough avg. 6-12" limestone pieces over the face of the slope.

What do you guys think? My only concern will be future settling since this is already excavated soil just graded. I know I've seen Chris using that plastic matting with pockets on the bridge project he did last year, but he said it was a pain in the butt.

Any other ideas?
yeah the Geo web is a very expensive product. is there a way you can grade the slope down so that it is not so steep? I think a French drain at the top of the hill is a waste of time. The problem lies at the bottom. the dirt was just pushed over the hill over unstable dirt. It happens all the time and I do it as well.
One thing you could do is to regrade the slope and install some sort of erosion matting and try to get some vegetation to start growing and hold the dirt.
The next and more expensive route would be to grade it, put down fabric and rip rap the entire slope.
all depends on how much the customer wants to spend!
__________________
Chris

"Life is like running a motor grader. You have to look down the road and plan for whats ahead and not down at your feet!"


http://www.youtube.com/user/letsdig18


New facebook fan page
http://www.facebook.com/pages/Letsdi...3541611?v=wall

Reply With Quote
  #3  
Old 04-19-2013, 09:04 AM
ProTouch Groundscapes's Avatar
ProTouch Groundscapes ProTouch Groundscapes is offline
LawnSite Silver Member
 
Join Date: Nov 2007
Location: OH
Posts: 2,125
I would love to just extend the slope out to decrease the angle, but at the very base of the current slope starts that marsh area. I would need 20' easy to get the angle not as severe.

I have thought about some wildflower/slope mix with straw blanket and some jute netting stapled down. Is there a maximum pitch for rip rap?
__________________
ProTouch Groundscapes LLC.
"Creativity Inspired By The World We Live In."
Reply With Quote
  #4  
Old 04-19-2013, 09:06 AM
ProTouch Groundscapes's Avatar
ProTouch Groundscapes ProTouch Groundscapes is offline
LawnSite Silver Member
 
Join Date: Nov 2007
Location: OH
Posts: 2,125
I'll try to get some pictures today, it should help to give you a better idea.
__________________
ProTouch Groundscapes LLC.
"Creativity Inspired By The World We Live In."
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump





Powered by vBulletin® Version 3.8.6
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Copyright ©1998 - 2012, LawnSite.comô - Moose River Media
All times are GMT -4. The time now is 10:51 PM.

Page generated in 0.06407 seconds with 9 queries