I have inherited a construction project where the contractor has installed 6inch electrical ducts through the 3’-0”Wide x 2’-0”Deep box drain, thus reducing the drain’s capacity. The pipes cannot be raised as they also cross an adjacent roadway. As a solution, I am considering adding another box...
So I am looking at a retrofitting technique for a failed retaining wall.
The new wall will butt the existing and the footing will rest on top of the existing.
Is that ok?
