The sixth course of 12" concrete blocks are dry stacked as the underground walls are built.
Rebar continues up on the left side where the blocks will rise for seven more courses.
The right side is not as deep into the hill so the undergound block wall will stop at this
level, topped off with the bond beam blocks seen wrapping around the front.
Another view of the underground walls. (May 7, 2005)
Four vertical lines (LEFT) were cut into standard 12" Knock-Out Bond Beam Blocks using
a diamond blade mounted on a circular saw. This side section was then knocked out so
that horizontal #4 rebar (grade 60) can be inserted to wrap around within the corners.
The #4 rebar is seen wrapping around within the bond beam layer. (May 10, 2005)
The underground concrete block walls near completion. (May 31, 2005)