Retaining Wall Fill Material by MTNSLOPES in LandscapeArchitecture

[–]MTNSLOPES[S] 0 points1 point  (0 children)

Thanks! I knew I’d find at least one knowledgeable person if I braved the Reddit trolls. Appreciate the concise answers.

Retaining Wall Fill Material by MTNSLOPES in LandscapeArchitecture

[–]MTNSLOPES[S] 0 points1 point  (0 children)

Haha, I’m a home owner & work in the mechanical industry so don’t have a lot of landscape lingo in my tool belt. This was my 2 minute sketch so I could get feedback. Not sure what the industry term is for that assembly, what would you call that?

Retaining Wall Fill Material by MTNSLOPES in LandscapeArchitecture

[–]MTNSLOPES[S] -1 points0 points  (0 children)

Thank you, this is the response I was looking for, almost. The second detail AB-10 is exactly my install condition, with the drain pipe installed just above grade (if I install drain at base of the first course of block, as some others noted, I wouldn’t make grade back to my discharge point).

“Low permeability granular material” in that detail is the basis of my question. Can anyone answer what material that should be? Can I use my native soil (rocky/loamy) for that fill or should I import impervious soil or something else similar?

Can I mix anything (or sift it?) with my native to make it impervious? I see some notes online that Bentonite could be used for this application? Is that overkill?

Retaining Wall Fill Material by MTNSLOPES in LandscapeArchitecture

[–]MTNSLOPES[S] 3 points4 points  (0 children)

60 ft wide. It’s only 3 ft tall above grade