The following improvements shall be constructed by the developer
and dedicated without cost to the Township as required by this chapter
and/or as stipulated in the improvements agreement and in a manner
approved by the Board of Supervisors consistent with sound construction
methods:
A. Grading including;
(1) Grading and seeding of road or street rights-of-way and grading and
seeding of slopes outside the road or street right-of-way.
(2) Grading and seeding of all drainage swales on public property, or
within public easements.
(3) Grading and seeding of all open space and recreations areas to produce
a smooth usable surface and accomplish proper drainage, unless the
open space and recreation area is intended to remain in a natural
or undisturbed condition.
(4) Implementation of soil erosion control and sedimentation control
facilities.
(5) Replacement of topsoil and vegetative restoration in disturbed areas
not stabilized with building, paving or other nonvegetative ground
cover.
(6) Removal of temporary soil erosion and sedimentation control facilities
when they are no longer required.
B. Street or road subbase, base and paving.
D. Sidewalks, crosswalks and pathways.
E. Underground facilities for electric, telephone and television cable
lines.
F. Storm sewers and drainage facilities.
G. A public or centralized sanitary sewer disposal system including
but not limited to sanitary sewer laterals, submains, mains and a
treatment plant (if required).
H. A public or centralized water supply and distribution system, including
but not limited to wells, pumping equipment, water laterals and submains.
I. Street name signs at all street intersections and regulatory signs.
J. Permanent monuments and lot pins.
K. Fire hydrants and streetlighting.
M. Recreation area improvements.
N. Open space and/or recreation areas.
O. Off-site improvements. When the development or subdivision proposed
is of such a nature as to cause a specific overload on an existing
Township and/or public facility, the developer and the Township shall
work together to take corrective action required to alleviate the
overload. The developer is encouraged to propose such corrective action
required, including any action which he is willing to undertake to
make the necessary corrections or any contribution he is willing to
make toward the cost of the necessary correction.
The developer shall construct and install, with no expense to
the Township, the streets, curbs, sidewalks, water mains, sanitary
and storm sewers, surface drainage facilities, fire hydrants, landscaping,
monuments, lot pins, streetlighting and other facilities and utilities
specified in this chapter on or adjacent to the subdivision or development
being proposed and off-site, as may be required. Construction and
installation of such facilities and utilities shall be subject to
inspection by appropriate Township, public agency, or public utility
officials during the progress of the work and shall be in conformance
with the standards and specifications of the Township, the public
agency or public utility regulating the improvement.
The following principles of subdivision and land development,
general requirements and the minimum standards of design, shall be
observed by the developer in all instances:
A. Low-lying land subject to flooding shall not be plotted for residential
development or for such other uses as may involve danger to health,
safety, morals and general welfare of the citizens.
B. All subdivision and land development plans shall show the location
of existing and proposed structures and impervious cover (e.g., driveways
and parking areas). All subdivisions and land development plans shall
contain a note as follows: "Individual lot owners are responsible
to ensure that the lots are graded in conformance with the plan's
stormwater design. In any case, each lot owner assumes responsibility
for the grading of each private lot outside of any Township right-of-way
or Township easement."
C. When a new public or centralized public water supply is proposed
for a subdivision or development, the developer shall obtain from
the Pennsylvania Department of Environmental Protection certificates
of approval as to the quality and adequacy of the water supply proposed
to be utilized by the developer and approval of the type and construction
methods to be employed in the installation of the proposed water supply
system.
D. Soil testing shall be undertaken prior to preliminary subdivision
or development approval to assure that adequate on-site sewage disposal
systems can be provided when connection to the Township sewer system
is not possible or practical.
E. Proposed subdivisions and land development shall be coordinated with
the existing nearby neighborhood so that the community as a whole
may develop harmoniously. Provision shall be made to assure that the
street patterns, pedestrian facilities, open space and recreation
facilities, and any other public facilities included in a proposed
subdivision shall complement the existing or proposed streets shown
on the current Township Official Map, and on nearby planned and/or
approved developments.
F. Improvement construction requirements will be completed in accordance
with Township regulations and standards, the Pennsylvania Department
of Transportation construction specifications, the Pennsylvania Department
of Environmental Protection regulations, or regulations or standards
of other appropriate agencies or public utility, whichever specifications
shall result in the more favorable interpretation of this chapter
by the Board of Supervisors.
G. All proposed subdivision and land developments shall be consistent with Chapter
300, Zoning, and the Official Map.
H. The final subdivision or land development plan shall contain the
following legend:
[Added 8-7-2007 by Ord.
No. 2007-03]
(1) Prior to the issuance of a building permit or commencement of construction
for any individual lot or parcel shown hereon, the applicant shall
submit to the Township Engineer for review and approval, three copies
of a final grading plan drawn at a scale of one inch equals 20 feet.
The grading plan shall be sealed by the professional engineer or land
surveyor responsible for the preparation of the plan. The plan shall
contain the following information:
(a)
Lot lines with bearings and distances, lot area, locations of
all existing and proposed lot corner monumentation, and tax parcel
identification number for the subject property.
(b)
Existing and proposed contour elevations at intervals of two
feet, including the subject lot, adjoining street(s) and 50 feet beyond
the subject property, as approved on the final grading plan. If the
average slope of the property is less than 3%, contour elevations
at intervals of one foot shall be provided.
(c)
Spot elevations for the first-floor level of any structure,
primary on-lot sewage disposal systems (where applicable), finished
road elevations, at point of entry, and any other area as deemed necessary
by the Township Engineer.
(d)
North reference, building restriction lines, easements, and
rights-of-way within or adjacent to the subject property.
(e)
Locations, sizes, and elevations of all existing or proposed
storm drainage structures within or adjacent to the subject property.
(f)
All property adjoiners and names of adjoining street(s).
(g)
Locations of all percolation test holes and soil probes and
the locations and dimensions of primary and secondary on-lot, sewage
disposal systems, where applicable.
(h)
The exact location and dimensions of any proposed structure,
appurtenant structure, road or driveway, with tie-in dimensions to
property line.
(i)
Individual lot soil erosion and sedimentation controls in accordance
with the approved subdivision plan or current conservation district
standards.
(j)
All covenants and conditions from the plan of record, if the
subject property is part of an approved and recorded subdivision plan.
All new streets, culs-de-sac and widened portions of all existing
rights-of-way intended for public use shall be dedicated to the Township
or state, subject to final acceptance based on compliance with the
following requirements:
A. Arrangements. Streets shall be arranged and considered in relation
to both existing and planned streets, as shown on the Township Official
Map, and located to allow proper development of surrounding properties
in accordance with the Comprehensive Plan.
B. Construction details. All construction details for street improvements
shall be reviewed and approved by the Township Engineer.
C. Street planning. Proposed streets shall be properly related to the
road and highway plans of the state and Township.
D. Traffic pattern. Local residential streets shall be laid out to discourage
through traffic, but provisions for street connections into and from
adjacent areas will be generally required.
E. Street classification. The Township Engineer, with the approval of
the Board of Supervisors, shall determine the classification of streets,
e.g., arterial, collector or local.
F. Conformity with topography. Street profile grades shall be adjusted
to the contour of the land to produce usable lots and streets of reasonable
grade. A transition slope from the right-of-way line to the elevation
of the abutting property(s) must be provided.
G. Grading. Street shoulder strips shall be graded to the full width
of the street right-of-way. If areas adjacent to the right-of-way
permit stormwater to drain toward the right-of-way, grading shall
be done in such a way as to prevent silting or erosion within the
street right-of-way.
H. Street width. The minimum widths of the right-of-way and the paving
shall not be less than those of an existing street of which the new
street is to be a continuation.
I. All proposed streets and streets adjacent to a development or along
the frontage of a proposed development shall meet the following requirements.
If an existing street does not meet these requirements, the developer
is required to upgrade the street to meet these requirements by improving
the road or paying a contribution to a Township road improvement fund
(if so adopted by the Township):
|
Width in Feet
|
---|
Type
|
Ultimate Right-of-Way
|
Paving
|
---|
Arterial street or highway
|
80
|
44
|
Collector street
|
60
|
32
|
Local street
|
60 or 50 depending on development type
|
36, 32 or 28 depending development type
|
(1) Arterial roads shall have an eighty-foot design right-of-way minimum
and at least two fourteen-foot traffic lanes and two paved eight-foot
pull-off lanes/shoulders. Curbs and/or sidewalks are required at the
discretion of the Board of Supervisors.
(2) Collector roads shall have a sixty-foot design right-of-way minimum,
and at least two twelve-foot traffic lanes and two four-foot paved
shoulders. Curbs and sidewalks are required at the discretion of the
Board of Supervisors.
(3) Local streets shall have a fifty-foot right-of-way minimum for single-family
detached lot subdivisions and sixty-foot right-of-way for nonresidential
or townhouse and multifamily subdivisions or subdivisions with densities
of three dwelling units per acre or more.
(a)
In nonresidential developments and residential developments
with townhouses or multifamily dwellings or with a density of three
dwelling units per acre or more, the local street shall consist of
at least;
[2]
Two ten-foot traffic lanes.
[3]
Two eight-foot parking/gutter lanes.
[4]
Total paved width 36 feet.
[5]
Concrete curb and concrete sidewalk are required in residential
subdivisions.
(b)
In residential subdivisions with a density of less than three
dwelling units per acre but more than one dwelling unit per acre,
the local street shall consist of at least;
[2]
Two twelve-foot traffic lanes.
[3]
Two four-foot paved shoulders/gutters lanes.
[4]
Total paved width 32 feet.
[5]
Concrete curb and concrete sidewalk.
(c)
In residential subdivisions with a density of one or less than
one dwelling unit per acre the local streets shall consist of at least;
[2]
Two ten-foot traffic lanes.
[3]
Two four-foot paved shoulders.
[4]
Total paved width 28 feet.
J. All paved shoulders, pull-off lanes, gutters and widened portions
of road are to be constructed to the same standard as required for
the abutting road, but the cross-slope shall be 4% (where curb is
not proposed).
K. Residential density for the purpose of this section of this chapter
shall be interpreted as being the number of dwelling units in the
total development divided by the area of the development, excluding
dedicated street rights-of-way and dedicated park or open space areas.
L. Cul-de-sac construction standards shall be the same as construction
standards for local streets.
M. Wearing course may not be applied without specific permission from
the Township.
N. All major subdivisions shall have two points of access via public
roads. For subdivisions proposing less than 20 lots, one of the points
may be a road extension to an undeveloped property. For subdivisions
proposing 20 lots or more, two points of access to existing public
roads must be provided.
Swimming pools where permitted in accordance with Chapter
300, Zoning, constructed for private or public use shall be regulated by applicable state or local regulations.
Complete streetlighting facilities shall be provided by the developer, at his expense, at each fire hydrant, and at each street intersection with a collector or arterial road. Streetlights shall be separated by at least 100 feet from each other. Plans for the placement shall be prepared in cooperation with appropriate public utility and by the Board of Supervisors. The subdivider shall have the right to select public utility approved metal poles; however, the type selected shall be the only type installed in the entire development, and such type shall be of the type approved by the Board of Supervisors. Streetlighting design must conform to Chapter
300, Zoning.
Subdrains may be required adjacent to concrete curb or edge
of road during construction of roads, at locations determined by the
Township Engineer during or before construction where such drains
are necessary to preserve road integrity in high water table conditions.
Such subdrains shall be installed in accordance with Appendix "B." The developer must provide a suitable outlet for each
subdrain outside the Township right-of-way or into the storm piping
system.
Proposed structures shall be set back the following specified distances from the following natural features. Building restriction lines shall be adjusted, even if more restrictive than those listed in Chapter
300, Zoning:
A. Wetlands - per Chapter
300, Zoning.
B. Stream banks - per Chapter
300, Zoning.
C. Pond or lakes - 100 feet for primary residential structures; 25 feet
for other structures.
D. Detention basin 100-year water surface elevation:
(1) One hundred feet for primary residential structures.
(2) Twenty-five feet for other structures.
All subdivisions and land development plans proposing 20 or
more residential units or nonresidential sewage flow greater than
800 gpd shall include an impact assessment showing their affect the
following. Impact studies may be required by the Township on smaller
developments/subdivisions if deemed necessary by the Board of Supervisors.
C. Public police protection.
D. Groundwater quality (prepared by a registered professional geologist
or professional soil scientist). This study must meet all requirements
of a Department of Environmental Protection "Preliminary Hydrogeologic
Study." For any subdivision or land development proposing greater
than 50 residential units and/or nonresidential sewage flow greater
than 20,000 gpd, the study shall meet all requirements of a Department
of Environmental Protection "Detailed Hydrogeologic Study."
E. Sufficient groundwater availability (if on-lot water is proposed)
without adverse impact on adjacent properties (prepared by a registered
professional geologist).
F. Traffic study showing the development's impact on area intersections
and existing roadway's levels of service. This study must be
prepared by a registered professional engineer and meet the following
standards:
(1) General site description. The site description shall include the
size, location, proposed land uses, construction, staging and completion
date and types of dwelling units, if applicable. A brief description
of other major existing and proposed land developments within 1/2
mile of the proposal which shall constitute the study area, except
that a study area of one mile from the proposal shall be used for
any commercial development of greater than 200,000 square feet of
total floor area.
(2) Traffic facilities description. The description shall contain a full
documentation of the proposed internal and existing highway system.
The report shall describe the external roadway system within the area.
Major intersections in the area shall be identified and sketched.
All future highway improvements which are part of proposed surrounding
developments shall be noted and included in the calculations.
(3) Existing traffic conditions.
(a)
Existing traffic conditions shall be measured and documented
for all streets and intersections in the area. Existing traffic volumes
for average daily traffic, peak highway hour(s) traffic, and for hour(s)
of predicted peak development generated hour(s) traffic shall be recorded.
Traffic counts at major intersections in the study area shall be conducted,
encompassing the peak highway and predicted peak development generated
hour(s), traffic shall be recorded. Traffic counts at major intersections
in the study area shall be conducted, encompassing the peak highway
and predicted peak development generated hour(s), and documentation
shall be included in the report. A volume/capacity analysis based
upon existing volumes shall be performed during the peak highway hour(s)
and the predicted peak development generated hour(s) for all streets
and major intersections in the study area. Levels of service shall
be determined for each major road segment and turning movement. Detailed
traffic counts of existing local streets not provided or proposed
for through access are not required. A tabulation of accident locations
during a recent three-year period shall be shown.
(b)
This analysis will determine the adequacy of the existing roadway
system to serve the current traffic demand. Roadways and/or turning
movements experiencing Levels of Service D, E, or F, as described
in Highway Capacity Manual, Special Report No. 209, dated 1985, shall
be noted as congestion locations.
(4) Traffic impact of the development. Estimation of vehicular trips
to result from the proposal shall be computed from the average daily
peak hour(s). Vehicular trip generation rates to be used for this
calculation shall be obtained from the Trip Generation Manual, published
by the Institute of Transportation Engineers, or, at the request of
the Township, said calculations shall be substantiated by physical
counts at similar type developments. These estimated developments
generated traffic volumes shall be provided for both inbound and outbound
traffic movements, and the reference source(s) and methodology followed
shall be documented. All turning movements shall be calculated. These
estimated volumes shall be distributed to the area and assigned to
the existing streets and intersections throughout the area. Documentation
of all assumptions used in the distribution and assignment phase shall
be provided. Traffic volumes shall be assigned to individual access
points. Any characteristics of the site that will cause particular
trip generation problems shall be noted. For retail sales uses, the
increased traffic during the holiday seasons and during weekends shall
be forecast and analyzed.
(5) Analysis of traffic impact.
(a)
The total future traffic demand shall be calculated. This demand
shall consist of the combination of the existing traffic expanded
to the completion year (straight line projections based on historical
data), the development generated traffic and the traffic generated
by other proposed developments in the study area. A second volume/capacity
analysis shall be conducted using the total future demand and the
future roadway capacity. If staging of the proposed development is
anticipated, calculations for each stage of completion shall be made.
This analysis shall be performed during the peak highway hour(s) for
all roadways and major intersections in the study area. Volume/capacity
calculations shall be completed for all major intersections.
(b)
All access points shall be examined as to the necessity of installing
traffic signals. This evaluation shall compare the projected traffic
to state warrant regulations for traffic signal installation.
(6) Conclusions and recommendations. Levels of service for all streets
and intersections shall be listed. All streets and/or intersections
showing a Level of Service below C shall be considered deficient,
and specific recommendations for the elimination of these problems
shall be listed. This listing of recommended improvements shall include,
but not be limited to, the following elements: internal circulation
design, site access location and design, external roadway and intersection
design and improvements, and traffic signal intersection and operation
including signal timing. All physical street improvements shall be
shown in sketches.
(7) Cost of needed projects. Approximate costs for all needed transportation
improvements shall be developed within a defined impact area.
(8) Administration.
(a)
The full cost of the traffic study and Township reviews of the
study shall be borne by the applicant.
(b)
The traffic study shall be reviewed by the Township Engineer
or other professional reviewer designated by the Township.
(c)
The project manager for any traffic impact report shall be a
professional traffic engineer or transportation planner with significant
experience in traffic studies.
(d)
In place of individual traffic studies, the Board of Supervisors
may by resolution establish a fee schedule for traffic studies. The
applicant shall then pay such fees which shall be used for a coordinated
study of more than one proposed development in an area of the Township.
(e)
The Board of Supervisors shall approve the traffic study as
complete prior to granting final approval to a land development, subdivision,
or conditional use application, unless a specific process for determining
any needed traffic improvements is made a condition of such approval.
(9) Applicant's responsibility. The applicant shall respond to the
traffic impact report by stating to what degree he/she is willing
to assist in funding or completing any off-site improvements that
are needed and to state what on-site improvements he/she proposes.
These improvements may include structural or nonstructural improvements.
Nonstructural improvements include long-term commitments by employers
or developers to support van pools, bus pools, staggered work hours
or public bus service.
(10)
Future stages of development. The traffic study shall include
not only an analysis of one individual project proposed at one point
in time, but also the overall projected impacts of future development
of all nearby lands owned by the applicant or that the applicant has
an option to purchase. The study shall include a projection of the
traffic expected from this future development, using reasonable alternatives
if no definite plans are available.
(11)
Other proposed development. The study should also take into
account traffic that can be expected as a result of other development
which has been approved and development for which plans have been
submitted to the Township and are being actively pursued.
(12)
Timing of required traffic improvements. No occupancy permit
shall be granted for a use or uses until such traffic improvements
that have been required by PennDOT or the Township to serve the use
are in place and operating, unless the Board of Supervisors require
or allow funds for a required traffic improvement to be placed in
a dedicated escrow account to be used when such improvements are warranted.
G. Any other site specific impact as may be identified by the Township
Engineer.