It should cover the trench to a depth of about one half inch.
River rock retaining wall how to build.
Once the foundation has been dug use your rack to smooth out the bottom of your trench.
How to build a river rock wall with mortar step 1.
Lay out the wall area and direction.
If you make a cement retaining wall you can set rocks against the wall as you pour the cement you can create a rock wall.
This is the fun part.
You cannot do this on a high wall as you have to pop the form with the cement is not fully dry or you can t get it off the rocks.
Dig our foundation twice as wide and 1 2 feet deep depending on how high you are planning on building your rock wall.
This allows water to drain through the rock retaining wall.
It s also possible to set pieces of drainage pipe perpendicular to the wall.
Due to their immense weight they need to be built on a stable base of compacted subsoil or.
Place a 6 inch layer of.
The trench should be deeper than the frost.
Give a representative your measurements as that affects the quantity.
Decide how wide and long you d like your rock wall to be and make sure that this is feasible with.
Place gravel behind the stones in the area behind the wall.
Once the gravel is in place you can add some decorative river rocks.
Don t forget to add pipes for drainage when you start so that water doesn t back up behind your retaining wall.
You place larger rocks at the bottom and add mortar on each layer to adhere the next row wiping away excess mortar.
Simply wash the cement off the rocks after you pop the form.
Build your wall it s finally time to build the wall and it s relatively straightforward.
Retaining walls build gabion cages 3 feet thick and tall to stack against a slope for erosion control.
Use rocks in varying sizes to create a natural look.
You can place river rocks according to your own taste to make the dry rock stream look just as you wish.
Select your stones from a stone supply yard.