After removing the soil between the rock wall and the sidewalk, there was nearly two inches of standing water that spanned the length of the rock wall.
The french drain has been installed and rests snuggly between the rock wall and sidewalk and spans the length of the rock wall. The fence drain is designed to block out debris, collect and redirect water to an outlet for removal.
The french drain is now installed and we are ready to back fill the area, clean up the sidewalk and call it a job well done.
Everything has been installed, french drain has been connected to outlet pipes and back fill has been packed.
Exterior french drains in The Great Northwest get their fair share of abuse. When malfunctions happen or parts fail, you can find yourself in a tight spot. A french drain in West Linn, Oregon had failed causing a small pond to form at the bottom of their front rock retaining wall and a river to run down the side walk and into the street. This created an unsightly feature in the front of the home and a hazard to anyone walking or driving by. By locating the malfunctioning part, redesigning the french drain system and outlets, we created an efficient drainage system that would hold up in even the heaviest rain.