Work under this item shall include all concrete
or masonry end walls and retaining walls. All such structures shall
be built in the location indicated or directed, conforming to the
lines, grades, dimensions and details shown on the plans and in accordance
with the provisions of these specifications.
A.
Concrete for this work shall conform to the requirements
of State Form 810, Article M.03.01, and shall be Class A concrete.
B.
Concrete masonry shall conform to the requirements
of ASTM Specification C-90.
C.
Mortar shall be composed of one part portland cement
and two parts by volume of surface dry fine aggregate.
D.
Reinforcing steel shall conform to the requirements
of State Form 810, Article M.06.01.
A.
Retaining walls shall be built in the location and
to the dimensions and details shown on the plans or as ordered. They
shall be neatly and accurately finished, true to the lines and grades
given.
B.
End walls shall be built in the location and to the
dimensions and details shown on the plans or as ordered, and they
shall be neatly and accurately finished, true to the lines and grades
given. Pipes shall be of sufficient length to extend to the exposed
face of the end wall, and the end shall be finished to provide neat,
watertight joints. The ends of pipe culverts which enter end walls
on a skew shall be cut to the angle of the skew or the short side
of the pipe may be built out with adequate forms if this method is
approved by the Engineer.
