retaining wall ?'s....

Discussion in 'Hardscaping' started by SusanL, Jun 6, 2011.

  1. SusanL

    SusanL LawnSite Member
    Posts: 2

    I have two retaining walls, one on either side of the driveway. They both need to be rebuilt, and one of them needs to be moved further back to widen the drive.

    I rebuilt parts of them last year, but after the winter snow melted I found that they had pushed back out. What are some things I can do so I do not have to worry about this happening next time?

    I want to plan and do it correctly; so any advice would be greatly appreciated.
     
  2. SusanL

    SusanL LawnSite Member
    Posts: 2

    Sorry guys and galls I forgot to add pics.

    This is what I am working with...
    DSC04591-2.jpg
    DSC04592-2.jpg
    DSC04593-2.jpg

    DSC04591-2.jpg

    DSC04592-2.jpg

    DSC04593-2.jpg
     
  3. 4 seasons lawn&land

    4 seasons lawn&land LawnSite Gold Member
    from NY
    Posts: 3,594

    you need to take them down and dig the soil out a foot under the wall and a couple feet behind the wall, pack the base with aggregate stone, rebuild the wall three-four times as wide, stack 2 over 1, backfill and compact the backside also with aggregate stone
     
  4. Dr.NewEarth

    Dr.NewEarth LawnSite Bronze Member
    Posts: 1,405

    You could try adding a drain tile too, behind the first course.
     
  5. 4Russl5

    4Russl5 LawnSite Member
    Posts: 160

    Length of your stone goes into the wall also. And a thicker cap course.
     
  6. Cam.at.Heritage

    Cam.at.Heritage LawnSite Member
    Posts: 76

    I agree with everything said so far, it also looks like the base of the first wall is actually resting on the driveway move it back so its completely on its own new base material.

    You could also mortar the stones together, this is obviously a lot more work but if you put the mortar deep into the wall you can make it appear like its still a dry stack wall, but with the strength of a mortared wall.
     
  7. White Gardens

    White Gardens LawnSite Fanatic
    Posts: 6,776

    So did anyone notice that the first course is sitting on the driveway?

    I'd mortar those suckers. I'd put the first course in type S-mortar with a couple of pieces of 1/2 rebar. I love dried laid walls, but the grade in this situation isn't conducive for one.

    I'd even stick some geo-grid in one of the course as you went. Then also back-fill correctly and do drainage.
     
  8. 4 seasons lawn&land

    4 seasons lawn&land LawnSite Gold Member
    from NY
    Posts: 3,594

    I wouldnt mortar a wall with out a full 3 ft frost wall or its going to break up, no?
     
  9. land_scaper70

    land_scaper70 LawnSite Member
    Posts: 107

    Personally, I feel you should call someone, a professional, in to do the job right. The bitterness of a poor job out lasts the taste of sweet savings.
     
  10. White Gardens

    White Gardens LawnSite Fanatic
    Posts: 6,776

    Na...

    Think of it this way, if you mortar up a brick building, would you put a frost wall on the outside to protect it?
     

Share This Page