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     French drains collect water from poorly drained areas and carry it to a main drainage line, dry well, ravine, or the street. French drains can intercept water that is draining from adjacent properties and carry it away before it enters your landscape. A French drain is constructed using pea gravel, woven landscape fabric, and a perforated and corrugated drainage pipe.
     To create a French drain, we dig a trench that will carry water away from the area to be drained. Ideal places to put drains are the bases of slopes, along retaining walls, or any other area where water tends to collect.

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cross section of an installed french drain

     We make certain that your trench is well sloped so that water is encouraged to move through the drain to the desired destination.

     We install a perforated drain line at the bottom of the trench, and backfill with gravel.  Water enters the perforations in the drain lines when the surrounding media is saturated and can be carried away more quickly than just by percolating through the gravel.

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Advanced Drainage Systems, Inc.