100 mm diameter drain pipe placed at the lowest possible elevation within the 12 in.
Retaining wall drainage pipe size.
Not adding drainage pipes.
All walls will be constructed with a 4 in.
The drainage collection pipe drain pipe shall be a 4 in.
No stones behind the wall.
For long retaining walls you must vent parallel to the wall toe drains at intervals of 30 to 50 feet.
300 mm of wall rock.
Add tee fittings perpendicular to the toe drain through the wall face to direct.
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Ensure your retaining wall stands strong for years to come by using the correct type of stones for your project and by choosing a design that works well for your soil and lawn type.
Our experts are happy to provide solutions for your retaining wall needs.
Pipe drains are usually installed at the base of the wall but taller walls and those with additional drainage needs may require multiple pipe drains at varying heights.
These will allow water to drain out of the earth and prevent your soil from getting waterlogged and excessively heavy.
Pipe drains must be vented at least every 30 to 50 feet and the use of rodent mesh is frequently necessary to prevent debris from getting into the pipes and clogging them.
100 mm perforated or slotted pvc or corrugated hdpe pipe as approved by engineer of record.
With proper retaining wall drainage and construction it can bring a lot of character and function to your landscaping.