Three Little Pigs Masonry follows fundamental masonry procedures to have a successfully functional masonry retaining wall.
We drill 4' deep pilings, 10" in diameter and at maximum 5' intervals (from lowest grade level of retainer). No matter how high your retaining wall, it must have these pilings or the frost will move it.
We install 15m rebar (bent to tie into horizontal rebar or mesh or both into pilings) and pour or place concrete to level of lowest grade.
Next, we install small 3/4" tubing at 3' intervals on top of footing to allow water to drain from the hydro- static pressure, but we also cover the tubing on the inside with an aggregate to ensure that the weepers do not get plugged up from soil or clay. In addition to installing active weepers, we install a water membrane on the inside.
The retaining wall can be built out of stone, brick or block, the choice is yours.
The final component is the limestone coping that is installed on the top of the retaining wall complete with drip edges to guide water away from your retaining wall.