Walkway over French Drain
If the French drain is of solid material (such as bricks) and on the surface then you would not be able to put gravel on it and you may not put a walkway over it except as a bridge. Water has to flow on the level along the French drain (a subtle ditch).
You may put gravel or flagstones etc. over an underground French drain, even one less than 12 inches below the surface.
A French drain (named after the country) is on the surface.
A French drain (named after a person) is underground.
Both are commonly found running along the perimeter of a building foundation.
The disadvantages of crab apple trees. In summer, the apples are too sour to pick and eat. In winter the birds come and leave dropping all over the place.
Last edited by AllanJ; 06-15-2011 at 11:38 AM.