# weep hole in retaining wall

I have spent two days searching the web but haven't found out how to define the following parameters for weep holes in retaining walls.

1. horizontal and vertical (if staggered situation) spacing between each weep hole;
2. slope degree;
3. diameter;
4. the space between bottom of the ground and the weep hole also form the top as well.
• I've typically not seem the weeps defined to that level. I've defined them as a X" pipe to provide positive drainage to the exterior of the retaining wall at an interval of Y' maximum. If more specification is needed I would typically see it drawn into the plans and elevations of the retaining wall. Oct 10 '16 at 19:32