This article shall be applicable to new development or land
disturbance on a steep slope within the Township of North Brunswick.
As used in this article, the following terms shall have the
meanings indicated:
DISTURBANCE
The placement of impervious surface, the exposure or movement
of soil or bedrock, or the clearing, cutting, or removing of vegetation.
IMPERVIOUS SURFACE
Any structure, surface, or improvement that reduces or prevents
absorption of stormwater into land, and includes porous paving, paver
blocks, gravel, crushed stone, decks, patios, elevated structures,
and other similar structures, surfaces, or improvements.
REDEVELOPMENT
The construction of structures or improvements on areas which
previously contained structures or other improvements.
STEEP SLOPES
Any slope equal to or greater than 20% as measured over any
minimum run of 10 feet. Steep slopes are determined based on contour
intervals of two feet or less.
The percent of slope (rise in feet per horizontal distance)
shall be established by measurement of distance perpendicular to the
contour of the slope. The percent of slope shall be calculated for
each two-foot contour interval. For example, any location on the site
where there is a one-foot rise over a ten-foot horizontal run constitutes
a ten-percent slope; a one-and-one-half-foot rise over a ten-foot
horizontal run constitutes a fifteen-percent slope; a two-foot rise
over a ten-foot horizontal run constitutes a twenty-percent slope.
For steep slopes any disturbance shall be prohibited except
as provided below:
A. Redevelopment within the limits of existing impervious surfaces.
B. New disturbance necessary to protect public health, safety or welfare,
such as necessary linear development with no feasible alternative;
to provide an environmental benefit, such as remediation of a contaminated
site; or, to prevent an extraordinary and exceptional situation uniquely
affecting a specific property that would create a hardship affecting
the property, preventing a minimum economically viable use of the
affected property based upon reasonable investment, provided that
the hardship was not created by the property owner, for example, redevelopment,
within the footprint of existing impervious cover should be allowed
to support efforts to revitalize development that has fallen into
disrepair.
C. The applicant shall demonstrate through site plans depicting proposed
development and topography that new disturbance is not located in
areas with a twenty-percent or greater slope.