Asked on Mar 05, 2017

How to fix a washed out area beneath our privacy fence?

by Susan
Heavy rains over the last few years has caused an area about 2 ft wide to wash out under our wooden privacy fence. Our fence runs along a 3 ft wide by 2 ft deep drainage ditch that runs all along the back of our property. Our back yard slopes down so the rain washes down to this one area. Any suggestions on the best way to fix this?
See the tubing, what to do?
  5 answers
  • William William on Mar 05, 2017

    I would dig down about 2' deep and about 1' beyond the area. Fill it with landscape stone about 6" to 8" below the surface. Fill the rest with soil and plant grass. The grass roots will bind with the stone while the water will seep into the stone and slowly percolate into the surrounding soil. Similar to a dry well.

    • Susan Susan on Mar 05, 2017

      Thanks for the info. That sounds like great advice. Since there is a ditch on the opposite side of the fence, we are going to build up that area with some bags of cement...similar to a retaining wall. That hopefully will help too.

  • Terri Wolf Terri Wolf on Mar 05, 2017

    Lazy & no maintenance-throw down piles of colored marbles-if nobody walks around there U could misc glass pieces/chunks...

  • Hillela G. Hillela G. on Mar 06, 2017

    Good luck!!!

  • Myr8816833 Myr8816833 on Mar 07, 2017

    night be a good place for a small water feature/pond

  • MargaretHoulihan MargaretHoulihan on Mar 10, 2017

    Buy perforated corrugated drainage pipe. Buy two 6' lengths and one 'T' section. Cut one 6' piece in half. Attach the two three foot pieces to the top of the T and the 6' piece to the bottom of the 'T' shape. Bury the pipe with the two 3' lengths on your side of the fence where the dirt is washed out while the 6' long part of the T is on the other side of the fence. Dig down to bury the 'T' in your soil. Add some rock around it and fill in with the dirt that you dug out to bury the pipe. The perforated pipe allows the water to soak into the soil. When the soil is saturated, the water will continue to run down the 6' drainage pipe and carry the water away from the fence underground and not allow the dirt to wash away. Be sure that the top of the T is higher than the bottom of the T, even if it means burying the bottom part of the T a little deeper in the soil. We have used this process in 3 different places in our yard to fix drainage problems.

    • See 2 previous
    • MargaretHoulihan MargaretHoulihan on Mar 11, 2017

      It is frequently referred to as a French drain. It carries the water away, but leaves the dirt intact. Good luck!!