Roadways shall be graded for the full width of the right-of-way
on each side. Paved shoulders shall be graded at a slope of 3/4 of
an inch per foot. Earthen shoulders shall be graded with a minimum
slope of 1/2 inch per foot and a maximum slope of one inch per foot.
Beyond the limits of this grading, banks shall be sloped to prevent
erosion, but this slope shall not be greater than three horizontal
to one vertical with tops of slope in cuts rounded. All unpaved areas
between the street line and the curb or shoulders (as the case may
be) shall be covered with not less than four inches of topsoil, fertilized
and seeded in a manner and with materials specified in Section 804
of PADOT Publication 408, latest edition thereof.
Joints formed by binder or wearing course laid adjacent to concrete
curbs or other rigid structures shall be sealed with PG 64-22 conforming
to PADOT Bulletin 25, or approved equal, minimum twelve-inch width,
unless directed otherwise by the Township Engineer.