Four-inch bituminous concrete sidewalk shall
be constructed as follows:
A. This item shall be constructed to a grade so that,
when the work is competed, the surface of the finished walk will be
approximately the same elevation as the adjacent ground level except
where variations are necessary to produce a neat and satisfactory
sidewalk.
B. The forms shall be one by two inches, securely held
in place and set to conformity with the established lines and grades.
Said forms shall be left in place.
C. The base course shall be constructed on a previously
prepared subgrade and shall consist of one-and-one-half-inch crushed
stone compacted to a thickness of three inches, penetrated with bituminous
binder at the rate of 1.5 gallons to 1.75 gallons per square yard,
covered with a light application of five-eighths-inch crushed stone
and rolled.
D. The surface course shall be constructed on the previously
prepared base course and shall consist of Type A or T bituminous concrete
compacted to a thickness of one inch and covered with screenings.