Concrete Box Drainage

Discussion in 'Lawn Care/Landscaping' started by RileyinTX, Jul 3, 2019.

  1. RileyinTX

    RileyinTX New Member

    Joined:
    Jul 3, 2019
    Location:
    Dallas, Texas
    Hello,

    I have been reading a while, but now I have a question that hasn't been previously answered.

    I have a 3' deep x 2' wide x 2' length concrete hole in my backyard right next to the driveway. It is covered with a drainage grate and has a pipe sticking out the back about 6" down. Clearly, it helps with drainage. I am wondering about the design of this system. Does anyone know what it is called? It seems to work fine except during heavy downpours where it gets behind. Why isn't there any holes drilled in the bottom of it? Should I drill holes in the bottom to help with drainage? The hole is filled with dirt (which I dug out to investigate), but the dirt (which ends just below the pipe) gets into the pipe and clogs it. Can I put something over the dirt (like landscape fabric) to keep the dirt out of the pipe?

    Just looking for advice.
     
  2. WorthFlorida

    WorthFlorida Broad-Wing Hawk

    Joined:
    Oct 28, 2009
    Occupation:
    Retired
    Location:
    Orlando, Florida
    Yes but remove most of the dirt.
    If there is no bottom to this box, dig down as far as you want to go, probably three feet, the same as the sidewalls. Line the bottom with landscape fabric and fill it with stone. The depth and level of stone below the pipe is really up to you. This is a maintenance item. Runoff will always contain some dirt or sand that settles to the bottom. Don't expect too much to drain into the ground during a rain event but after a few hours it should drain down if the ground is not saturated.
     
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