Rock wall question

Discussion in 'Landscape Architecture and Design' started by TAF, Feb 23, 2005.

  1. TAF

    TAF LawnSite Member
    from Wa
    Messages: 47

    I have a customer that would like to replace a rotten wood retaining wall. They would like 2 man rock. The wall is 4' high x 50' long. As I have built a few before I have some questions. 1.) How should I incorporate some drainage through the wall? I have seen some walls that had 2" drain pipe built into the wall to allow water to drain through it. It rains here (Seattle) and I am sure it would be best to do this. There is a drainrock filled trench in front of this wall for this water to go into and drain away. 2.) I will be backfilling with rip rap, should I also put in a barrier between this and the dirt behind the rip rap?

    Thanks for any information....................again!
  2. cgland

    cgland LawnSite Bronze Member
    Messages: 1,929

    I would treat this just like any other retaining wall although I don't think I would use rip rap. I would probably use something a little smaller and place a 4" drain tile directly behind the wall. Definately use a separation fabric. With the wall only being 50' long, I would just daylight it at each end. HTH.


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