The 550-foot stone-masonry retaining wall that separates the rear alley of houses along West Penn Street from the common driveway of homes along Midvale Avenue is leaning, cracked and unsafe. (Bas ...

Size the trench so there's enough room for the retaining wall block and at least 8 in. of space behind it. Excavate deep ...

Sections of a 550-foot-long retaining wall in East Falls built in the late 1920s are leaning, cracked, and unsafe, affecting the owners of 65 homes on either side of the wall. Sound like an ...