The preliminary plat shall contain the following
additional data:
A. Survey data.
(1) The plat
shall be based on a boundary survey which shall be based on a field
traverse having an error of closure of not less than one part in 10,000
parts. A certification as to compliance with this requirement shall
be provided by the applicant's engineer.
(2) Topographic
contours at two-foot intervals referred to in the United States Coast
and Geodetic Survey datum of mean sea level, provided that smaller
or larger intervals, when advisable due to the terrain, may be used
after approval by the Township Engineer. The contours shall extend
200 feet beyond the subdivision boundary line.
B. Existing site
conditions to be indicated.
(1) Street rights-of-way
on the subdivision and within 500 feet of its boundaries with the
following data indicated:
(c) Existing
streets intersecting with streets proposed in development.
(d) Center-line
elevations shown on a profile, with elevations indicated at fifty-foot
intervals.
(2) Other rights-of-way
and easements on the subdivision and within 500 feet of its boundaries,
with the following data indicated:
(a) Identification
and description.
(c) Restrictions
on use, if any.
(3) Drainage
structures on the subdivision and within 500 feet of its boundaries
to be shown on plan and profile, with following data indicated:
(b) Location,
invert elevations, gradients and sizes of all pipe and other structures,
where applicable.
(c) Capacity
of all storm drainage facilities.
(4) Location,
size and capacity of other utility structures, such as water and gas
mains and power lines, on the subdivision and within 500 feet of its
boundaries.
(5) Marshes,
ponds, streams and land subject to periodic or occasional flooding
or similar conditions on the subdivision and within 500 feet of its
boundaries, with the following data indicated:
(a) Location
and area covered, indicating apparent high water level.
(b) Water
level on date of survey and survey date.
(c) Maximum
depth of water at critical points.
(6) Test holes.
(Locations shall be reviewed by the Township Engineer prior to digging
thereof.) Test holes shall be located along roadway or easement rights-of-way.
They shall comply with the following:
(a) Test holes
shall be dug at the rate of one test hole per three acres of land
to be subdivided to a depth of 12 feet or bedrock, whichever is less,
for the purpose of determining bedrock elevations, soil horizons and
groundwater depth.
(b) The location
of each test hole shall be shown on the plat with a graphical representation
of the depth to bedrock, soil horizons and groundwater, including
elevations of bedrock and groundwater.
(7) Township
or other public lands, including lands designated as parks, open spaces
or for some other public use.
(8) Buildings
and other structures located on the subdivision and within 200 feet
of its boundaries.
(9) Trees over
four inches in diameter, measured at six feet above the existing grade,
located on the subdivision, provided that where trees are in mass,
only the limits thereof need be shown, except that if the trees are
proposed to be removed, trees over nine inches in diameter shall also
be shown.
C. Proposed site
conditions to be indicated shall be as follows:
(1) Streets.
(a) Name (to
be checked with the Township Engineer prior to submission).
(c) Tentative
center-line elevations at fifty-foot intervals shown on the profile
sheet.
(d) Tentative
center-line gradient shown in percent of slope and vertical curve
data.
(e) Tentative
cross sections.
(f) High points
and low points shown on plan and profiles with elevation thereof shown
on profiles.
(g) An analysis
of allowable site distance at all intersections and an indication
thereof on the profile, including "K" value.
(2) Lot layout.
(a) Lot lines
and dimensions to the nearest foot and lot area, in square feet.
(b) Building
setback lines (dashed) and its dimensions from the lot line.
(c) Easements
and restricted areas with notation as to purpose or restriction.
(d) Identification
of lots or parcels for special uses, whether they are to be offered
for dedication or not.
(e) Future
layout for all reserved parcels, in broken lines, in conformance with
existing zoning regulations.
(f) Location of site triangles as required by §
525-25N.
(3) Preliminary
stormwater drainage system in plan and profile.
(a) All proposed
drainage facilities, with sizes and gradients in plan and profile.
(b) Outline
of watersheds tributary to drainage structures and their area in acres,
including those which extend beyond the boundaries of the subdivision.
(c) Preliminary
design computations.
(4) Existing
trees to remain standing, located on the subdivision.
(5) Proposed
sanitary sewer system, in plan and profile.
(a) All proposed
sanitary sewers with sizes and gradients.
(b) All proposed
pumping stations, force mains and other special facilities.
(c) An engineer's
report in compliance with the requirements of the New Jersey Department
of Environmental Protection.
(d) If the
site is to be served by an individual sewage disposal system, a copy
of the report required for percolation or permeability tests and soil
logs therefor shall be submitted.
[Added 5-3-1988 by Ord. No. 0:88-6; amended 9-4-1990 by Ord. No. 0:90-16]
(6) The tentative location and size of all other proposed utilities. If the site is to be served by an individual water supply system, a copy of the report required for well test requirements as required by §
489-7D shall be submitted.
[Amended 9-16-2003 by Ord. No. 03-7]
(7) The estimated
average number of automobiles and number and size or type of trucks
or buses that will enter and leave the site each day and during peak
hours.
(8) Tentative
grading plan, indicated by contours at four-foot intervals or other
intervals, as may be required by the slope and nature of the final
grading.
(9) The limits
of the final plat sections if the subdivision is to be developed in
more than one section, and the anticipated date of development on
each section.
(10) Impact
on community services.
(a) An analysis
of the impact of the proposed subdivision on community services including
but not necessarily limited to the following:
[3] Street
and highway system.
[5] Police
and fire services.
[7] Public
utilities such as water, telephone, electric and cable television.
(A letter from the public utilities stating their ability to accept
the additional required services may be considered as compliance.)
[8] Other
such services as the Board may deem appropriate.
(b) The analysis
shall assess the impact of the subdivision in its entirety and by
section and shall compare them to the available capacity. It shall
also include the basis for each projection.
(11) Any other
data the Board may deem appropriate.
The improvement and utility plans shall contain
the following additional data:
A. All existing site conditions as required in §
425-13B.
B. Street rights-of-way
and widening of street rights-of-way.
(4) Notation
on widenings where an offer of dedication is being made.
C. Other rights-of-way
and easements.
(1) Identification
and description.
(2) Location
and width, with dimensions necessary for description.
(3) Restrictions
on use, if any.
D. Proposed lot
layouts.
(1) Number identification
by a lot and block system as assigned by the Township Tax Assessor.
(Application for assignment of numbers shall be made through the Township
Engineer.)
(2) Lot lines
with accurate dimensions to the nearest hundredth of a foot.
(3) Lot area
to the nearest square foot.
(4) Building
setback lines with dimensions.
(5) Special parcels.
(a) Description
of proposed action and use, including a note where an offer of dedication
is being made.
(b) Boundary
lines with accurate dimensions to the nearest hundredths of a foot.
E. Street center-line
gradients in percent, with:
(2) Stopping
or headlight site distances.
F. Street center-line
grade elevations indicated at:
(3) Vertical
curve, PVC, PVI and PVT.
G. Drainage system
requirements.
(1) Complete
drainage system plan for the entire subdivision, with appropriate
development stages for each of the final plat sections, shall be shown
graphically with all existing drainage features which are to be incorporated
properly identified as "existing."
(2) Boundaries
of stormwater runoff watersheds for each drainage structure, and their
areas, in acres.
(3) All proposed
surface drainage structures (e.g., ditches, channels, etc.).
(4) All appropriate
details and dimensions necessary to explain clearly the proposed construction,
including type of construction, material, size, pitch and invert elevations
and other data as may be necessary.
(5) Profiles
of all proposed drainage system components.
(6) Final design
computations.
H. Sanitary waste
disposal system.
(1) A sanitary
sewer system design shall be indicated in all cases where public sewer
connections exist or are proposed, including locations of house connections.
(2) A notation
on the profile of the minimum water and air retention time for exfiltration
tests for each line within the subdivision.
(3) If on-site
disposal is proposed, typical lot layout, indicating location of system
with reference to house and water supply; and detailed drawing of
proposed sanitary waste disposal facility.
I. Water supply
and distribution.
(1) Location
of source on property or, where piped in, the size of the supply main.
(2) Location
and size of all distribution mains.
(3) Location
of fire hydrants.
(4) Location
of all control valves.
J. Electric and
telephone and other utility systems.
(1) Location
of all service routes for both aerial and underground cables and of
all poles.
(2) Location
of all special facilities.
K. All off-tract
improvements to be constructed as part of the subdivision.
L. A contour grading
plan for all areas to be disturbed, showing both existing and proposed
grade at two-foot intervals and smaller intervals, if necessary.
M. Locations of
all trees and natural features to be removed and preserved.
N. Location of all
improvements, including but not limited to the following;
(3) Driveway
aprons and drop curbs.
O. Profile drawing
requirements.
(1) Drawings
shall be made on standard profile paper with the following scales:
(a) Horizontal
scale: one inch equals 50 feet.
(b) Vertical
scale: one inch equals five feet.
(2) All profiles
shall show the existing natural grades, the typical cross section
of existing or proposed roadways, the center lines of intersecting
roadways and a system of survey stations.
(3) The center-line
profile of all proposed roadways, with dimensioning on vertical curves,
and notation as to gradient, elevations at fifty-foot stations and
at all high and low points.
(4) The invert
profile and location of all sanitary and storm drainage structures
and pipes in street rights-of-way and in easements.
P. Detailed grading
plans of each intersection, showing elevations at ten-foot intervals
at the following points:
(1) Center lines
for 100 feet on either side of the center line at intersections.
(2) Edge of traveled
way of through street.
(3) Gutters of
both through street and intersecting street.
Q. An estimate of
quantities of each construction item, broken down into the following
categories:
(1) Improvements
dedicated to the Township or, in the case of privately owned streets,
improvements which would formally be dedicated to the municipality.
(2) Improvements
owned by public utilities.
(3) Other site
improvements exclusive of dwellings, septic systems and private wells.
(4) Improvements
to be made off-tract.
R. Copies of all
applications and supporting data for permits issued by other agencies
and copies of the permits.
S. Construction
details of all improvements other than public utilities.
T. Other data as
may be required by the Board.
U. Letters from
utility companies approving all installations shown on the plans.
The final plat must be drawn in conformance
with the provisions of the Map Filing Law and contain all the requirements for drainage easements,
encroachment line sight triangles at intersections and new or additional
right-of-way easements.