We live in a 1916 home and a retaining wall has been present since the house was built. It is having cracks, and some shifting, but not falling or tilting. We recently had another wall placed ontop of this one, set in, so we have a tiered effect. The new wall has weep holes to drain the top water run off.
Do we need weep holes on the old wall to relief pressure build up and if so, what size, distance between and how far from the bottom. The retaining wall sits about 4.5 feet high and is about 60 feet long on one side and 40 feet long on the other. thanks for anyones thoughts.
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