Retaining Wall Repair With Helical Anchors

retaining wall failure st louis missouriRetaining walls are common along roads, driveways, parking lots, and even around bodies of water.   These wall anchors can make sloped areas on your property usable by creating room and level space for sidewalks, driveways, gardens, patios, and more.   Just like your basement walls the soil behind retaining walls exert a great deal of pressure.   In Missouri our enemy is water problems and the clay based soils.

Warning signs of failing or collapsing retaining walls: 

  • Tilting, bowed retaining walls
  • Separation of the retaining walls to adjacent walls
  • Forward movement of the retaining wall
  • Buckling or cracks found with the walls

To take care of collapsing retaining wall repair, contractors can install a series of wall anchors which will help to pull the wall back to where it needs to be or stabilize it in place preventing any further movement. The process is similiar to Helical Anchors for Leaning Walls.

Retaining Wall Helical Anchor Installation

broken retaining wallHelical anchors are installed from the exposed face of the retaining wall, through a hole cut in the wall. The anchor's helical blades help to pull it deep into the soil and anchor it there. After closing the hole in the retaining wall, a wall plate is installed and a nut is tightened over the protruding threaded rod to brace the wall.

After the Tieback Anchors are in place the shaft of the Anchor is adapted into threaded bar that extends out though the wall.  A large steel plate with a hole in the center for the Anchor rod can then be placed against the wall.  Large Anchor nuts and Wedged bearing washers are then used to secure the plate tight to the wall. 

Each collapsing retaining wall solution will help to return the wall back to its original position to improve its appearance and its structural integrity.

Wall anchors are a much more affordable solution than replacing the retaining wall.

How Much Does Retaining Wall Repair Cost?

This will vary great depending on the height of the wall, the materials needed to do the repair and access.  For easy figuring, figure an anchor every 4-6 feet.  Costs will range from $600 to $1200 each anchor.  Sometimes excavation could be required behind the wall to allow it to be straightened.  Drain tile could also be installed at that time.  This could add to the costs and would be normal.