In the early 1900s, the town of and snap a chalk line marking the level
of the finished pour.
Rebar and bulkheads. For crack control,
we placed two strands of 3/8-inch
rebar at the base of the wall and a single
strand at the top. The top of the
wall stepped down in several places,
and there we formed bulkheads by
scribing tapered blocks of 2x8 to fit
tightly against the stone and screwing
it vertically to the inside of the forms.
We used the same method to fit the
full-length bulkheads at the ends of the
forms. Some dirt packed along the bottom
edge of the forms kept the concrete
from leaking out.