Inlet of French Drain into or under a Retaining Wall

The entry point of a French drain into or beneath a retaining wall is a critical aspect of drainage system design.

When planning the installation, it's essential to ensure that the drain inlet is strategically positioned to capture and divert water effectively.

This typically involves placing the drain pipe at the base of the retaining wall or beneath it to intercept groundwater and surface runoff before it accumulates behind the wall.


Proper installation techniques, such as using perforated drain pipe surrounded by gravel or aggregate, help facilitate efficient water flow and prevent hydrostatic pressure buildup, which can compromise the integrity of the retaining wall.


Consulting with a qualified drainage contractor or engineer can provide guidance on the optimal placement and design of the French drain system for your specific site conditions.

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