Retaining Wall Drainage Details Explained (French Drains, Weep Holes)

Retaining Wall Drainage Details Explained

Drainage is the most important factor in retaining wall performance. Water pressure behind walls causes bowing and failure if not managed correctly.

Effective drainage methods:

• Free-draining stone behind the wall

• Perforated drain pipe sloped to daylight

• Proper grading at the top of the wall

• Geotextile separation to prevent soil migration

Shop drainage stone & base:
👉 https://directlandscapesupply.ca/collections/shop-aggregates-prodcuts

Reference official installation details (Belgard):
👉 https://www.belgard.com/plan-design/installation-beyond/installation/