The purpose of this article is to describe the
design and construction standards applicable to land use activities
regulated by this chapter.
A.
The standards herein shall be considered to be minimum standards. When literal compliance with the standards and requirements contained in this chapter is clearly not appropriate, the Board of Supervisors may grant a modification of requirements from such requirements under the provisions of Article IX of this chapter.
A.
Land to be subdivided or developed shall be of such
character that it can be used safely for land development purposes
without danger to health, or peril from fire, flood or other menace.
B.
Land subject to hazards such as quarry land, open
ditches and ponds, having side slopes in excess of two horizontal
to one vertical having embankments of three or more feet in height
and the like, shall not be subdivided for residential purposes until
such hazards have been eliminated, or unless safeguards against such
hazards are provided, which are deemed adequate by the Township.
A.
Monuments must be placed so that the scored or marked
point coincides exactly with the point of intersection of the lines
being monumented.
B.
Monuments and markers must be set so that the top
of the monument or marker is level to one inch above the finished
grade.
C.
Monuments must be set at points of intersection in
the perimeter of a subdivision or land development, or at maximum
intersection intervals of 1,000 feet. If points of intersection occur
at intervals of more than 1,000 feet, the 1,000 feet spacing between
the points of intersection is waived.
D.
Street right-of-way lines shall be provided with monuments
at all points of intersection.
E.
Monuments shall be four inches square or four inches
in diameter and shall be 30 inches long.
F.
Monuments shall be made of concrete, stone or by setting
a four inch metallic pipe filled with concrete. Monuments which are
not constructed by filling a four inch metallic pipe shall have embedded
a metallic bar and/or cap to facilitate locating the monument with
electronic locating devices.
G.
Markers must be set at all lot corners except those
monumented, and must be placed before the property is offered for
sale.
H.
Markers shall be 3/4 of an inch square or 3/4 of an
inch in diameter, 30 inches long. Markers shall be made of iron or
steel bars.
I.
All markers and monuments shall be placed by a registered
surveyor.
A.
To the largest degree feasible, natural vegetation
shall be retained and protected.
B.
Stripping of vegetation, regrading or other development
activities shall be done in such a manner as will minimize erosion
and be in accordance with the approved soil erosion and sedimentation
control plan.
C.
On any property being developed pursuant to the provisions
of this chapter, no healthy tree with a trunk diameter equal to or
greater than eight inches measured 36 inches above the ground shall
be removed except for agricultural pursuits, foundations, roads, driveways,
access drives, parking facilities, active public or commercial recreation
areas, sidewalks and walkways, achieving clear sight lines for street
and driveway intersections and utility placement, unless such tree
removal is authorized by the Board of Supervisors as part of the plan
approval. When authorized to remove such trees, the developer shall,
at the Township's request, be required to plant a tree for each tree
removed, at a location approved by the Township, which may be located
on the lands being developed or any publicly owned lands of the Township.
D.
In the event that a developer or builder does not
clear the affected land in accordance with the approved plan, the
Township may issue a cease and desist order, and may revoke the approval
of the development plan and/or building permit for the subject land.
A.
To provide suitable sites for building and other uses,
and to improve surface drainage and control erosion, the following
requirements shall be observed during earth-moving activities:
(1)
The design of the land use activity shall preserve,
to the greatest extent practical, the natural features of the land,
and shall minimize land cuts and fills.
(2)
All land shall be graded to provide proper drainage
away from buildings, and to disperse water without adversely affecting
downstream properties.
(3)
All development activities shall be graded so as to collect and control stormwater as specified in Chapter 174, Stormwater Management.
[Amended 12-21-2010 by Ord. No. 602]
(4)
Where drainage swales are used to carry surface water,
they shall be sodded or otherwise constructed and protected so as
to be stable and noneroding.
(5)
Adequate provisions shall be made to minimize surface
water from damaging the cut face of excavations or the sloping surfaces
of fills.
(6)
Cuts and fills shall be designed to not endanger adjoining
property or public right-of-way.
(7)
Fills shall be placed and compacted so as to minimize
sliding or erosion of the soil and shall not encroach on natural watercourses
or drainage swales.
(8)
When adjacent to natural watercourses or drainage
swales, cuts and fills shall have suitable protection against erosion
during periods of flooding.
(9)
Trenches shall be backfilled in such a manner to minimize
settlement. This represents Township minimum standards and shall not
supersede any more stringent requirements of any other utility and/or
agency which may apply, such as the Derry Township Municipal Authority's
"Standard Construction and Material Specifications for Wastewater
Collection System Extensions," 1993, or as may be amended.
(10)
Settlement shall be minimized by placing fill
material in loose lifts not exceeding eight inches and compacted to
its optimum moisture content, plus or minus two percentage points,
to 95% of its maximum dry density as determined by the modified proctor
compaction test ASTM Designation D-1557-70.
(11)
Each compacted lift in a public right-of-way
may be inspected by the Township or its representative before placing
additional fill material.
(12)
Grading equipment shall not cross permanent
streams.
B.
In the event a developer initiates earth-moving or
other activities which disturb the site, and the developer's failure
to complete the development as scheduled creates the potential of,
or an actual environmental hazard, or is otherwise detrimental to
the health, safety and welfare of the public, and it appears the developer
has abandoned serious development activities at the site, the Township
may give the developer a written notice stating that the developer
must take corrective action to eliminate the potential or existing
harm within 10 days of receipt of said notice, or the Township will
proceed to take corrective action to do so. If the developer fails
to initiate good faith corrective action by the 10th day after receiving
said written notice, the Township may take the minimal corrective
action necessary to protect the health, safety and welfare of the
public, and may charge developer's performance security for the costs
of the same if not reimbursed by the developer within 30 days of receipt
of a written request for payment of the costs of the corrective work,
including engineering and administrative costs. Such written request
for payment shall be accomplished by a complete itemization of the
cost incurred. In an emergency situation, when the threat of harm
is immediate, notice to take corrective action may be made by telephone
or direct verbal communication and the Township may take immediate
action if the developer fails to indicate they will promptly undertake
the appropriate corrective action. In an emergency situation the Township
may act without giving actual notice if it has made reasonable attempts
to do so without success and the potential danger from failure to
act would be imminent and substantial in nature.
A.
An erosion and sedimentation control plan shall be included with preliminary and final plan submissions and shall consist of such graphic plans, details, calculations, written narrative, etc., as necessary to explain the proposed earth disturbance activity and demonstrate compliance with the requirements of the Pennsylvania Department of Environmental Protection, "Erosion Control Rules and Regulations" (Title 25, part I, Subpart C, Article II, Chapter 102 — Erosion Control). The design criteria and requirements for the erosion and sedimentation control plan may be obtained from the Dauphin County Conservation District, or directly from the Pennsylvania Department of Environmental Protection.
B.
The plan shall be submitted to the Dauphin County
Conservation District for review with evidence of such submission
forwarded to the Township. A letter indicating that the plan complies
with the relevant Department of Environmental Protection rules and
regulations may be required by the Township prior to final plan approval.
When an earth disturbance permit is necessary, the Township may require
the issuance of said permit prior to final plan approval.
C.
Construction shall be in accordance with the approved
erosion and sedimentation control plan. Controls shall be installed
at the initial stages of earth-moving activities and shall remain
in effect until final stabilization of the project occurs.
A.
General.
(1)
The design of all streets shall, at a minimum, conform
to this chapter and all other applicable standards and specifications.
(2)
All proposed streets shall be considered in their
relation to existing streets, to planned streets, to the Derry Township
Comprehensive Plan, to topographical conditions, to public conveniences
and safety and to their appropriate relation to the proposed uses
of the land to be served by such streets.
(3)
Private streets are prohibited except to the extent that common driveways are permitted as part of a conditional use grant for a cluster development as described in § 225-501.43 of Chapter 225, Zoning; or as part of a conditional use grant for a master plan development as described in § 225-501.58 of Chapter 225, Zoning.
[Amended 3-28-2017 by Ord. No. 684]
B.
Street classification.
(1)
Four functional classifications of public streets
are established as follows:
(a)
Arterial. This classification includes public
streets which provide intercounty and intermunicipal traffic of substantial
volumes.
(b)
Collector. This classification includes those
public streets which connect minor public streets to arterial public
streets and which generally serve intra-county and intra-municipal
traffic. They may serve as traffic corridors connecting residential
areas with industrial, shopping and other services. They may penetrate
residential areas.
(c)
Minor. This classification includes those public
streets that provide direct access to abutting land and connections
to higher classes of public streets. Traffic volumes will be low and
travel distances generally short.
(d)
Alley. This classification includes those public
streets that are primarily used for service or parking access to the
rear or side of a property.
(2)
The Township shall determine the street classification
based on existing proposed and anticipated conditions. The developer
shall meet with the Township prior to preparing a preliminary plan
to obtain necessary classification information.
C.
Street system design.
(1)
The arrangement of streets in new subdivisions or
land developments shall make provisions for the continuation of existing
streets from adjoining areas.
(2)
Where adjoining areas are not developed, the arrangement
of streets in the proposed subdivision or land development shall make
provision for appropriate projection of streets by constructing them
to the boundary between the new development and adjoining areas or
by providing an area reserved for future street extensions, unless
the future projection of such streets is clearly impractical.
(3)
Streets terminating in a cul-de-sac shall not exceed
500 feet in length and shall not serve more than 14 dwelling units.
Not more than 20% of the dwelling units in a development shall be
served by streets terminating in cul-de-sacs.
(4)
The cul-de-sac portion of streets shall be provided
with a paved turnaround having a right-of-way and paving radius as
specified in Table 185-22.
(5)
Dead-end streets shall be permitted only when terminated
in a permanent cul-de-sac.
(6)
If a developer chooses to develop an area represented
on an approved preliminary plat in stages, and streets are planned
to extend into other sections represented on the preliminary plat,
temporary cul-de-sacs shall be provided for a period of use not to
exceed three years.
(7)
Temporary cul-de-sacs shall be stabilized all weather
turnarounds having the same radius as required for a permanent cul-de-sac.
Minimum stabilization shall consist of an eight inch 2-RC stone base
on a natural or compacted subgrade.
(8)
When temporary cul-de-sacs are proposed, security
guarantees must be provided to the Township to ensure that if, after
the three years, the street is not extended, the cul-de-sac will be
improved to a permanent type of construction, complete with curbs
and sidewalks.
(9)
When establishing phase lines for preliminary plan,
the phase lines shall be laid out so that if the development does
not progress beyond any particular phase, the streets will not remain
as streets terminating in a cul-de-sac which are contrary to the street
design standards contained herein.
(10)
Reserve strips providing an area reserved for
future marginal access streets may be required along collector or
arterial streets.
(11)
A development activity which abuts a collector
or arterial street may be required by the Township to use marginal
access streets, double frontage lots or such other design which will
reduce the number of street or driveway intersections with collector
or arterial streets.
(12)
Half or partial streets will not be permitted.
(13)
Whenever a tract to be developed borders an
existing half or partial street, the other part of the street shall
be plotted within such a tract.
(14)
All lands subdivided and/or all lots developed
which are to be the site of 10 or more dwelling units shall provide
for at least two street connections to existing public streets.
(15)
In situations involving the subdivision or development
of land for nonresidential purposes, the Board of Supervisors may
require at least two street connections, or if the land is to be accessed
by driveways, two driveway connections to existing public streets
where necessary to ensure safe and efficient traffic flow.
D.
Street right-of-way and cartway widths.
(1)
Based on the criteria provided in § 185-22B of this article, the Township shall determine whether a street shall be classified as an arterial, collector, minor street or alley.
(2)
Street right-of-way and cartway widths shall not be
less than as shown on Table 185-22.
(3)
Additional street width (right-of-way, cartway, or
both) may be required to be dedicated adjacent to existing streets
with substandard right-of-way of cartway widths with respect to Table
185-22 of this article, in specific cases for:
(4)
Short extensions of already existing streets with
right-of-way or cartway widths less than the requirements above may
be permitted provided the Board of Supervisors determines that such
an extension would be reasonable and necessary for the orderly and
efficient completion of the street.
Table 185-22
| |||||
---|---|---|---|---|---|
Right-of-Way and Cartway Widths
[Amended 2-13-2007 by Ord. No.
558]
| |||||
Street Type
Cul-de-Sac Area
|
ROW
|
Paved
|
Number of Lanes
|
Width of Lanes
|
Width and Number of Parking Lanes
|
Arterials
|
As approved by PennDOT or the Board
of Supervisors of Derry Township, whichever governs the street
| ||||
Collectors
|
65 feet
|
40 feet
|
2
|
12 feet
|
8 feet (2 lanes)
|
Minors
|
60 feet
|
34 feet
|
2
|
10 feet
|
7 feet (2 lanes)
|
Cul-de-sacs area
|
55 feet
|
45 feet
|
1
|
N/A
|
7 feet (1 lane turnaround)
|
Alleys
|
26 feet
|
18 feet
|
2
|
9 feet
|
None
|
E.
Curbs.
(1)
All new streets which are created or intended to be
created as part of a land development or subdivision shall be provided
with curbing on both sides of the street as specified in the Appendices.[1]
[1]
Editor's Note: The Appendices and Sample Documents
are included at the end of this chapter.
(2)
The cross-sections of curbs shall be constructed in
accordance with the details shown on approved drawings.
(3)
Curbs shall be set and finished to the lines and grades
shown on the approved drawings.
(4)
The developer shall notify the Township a minimum
of 24 hours in advance of the start of curb construction.
(5)
Existing adjacent streets abutting development sites
shall be provided by the developer with curbing along the abutting
side of any adjacent street. Restoration or placement of paving between
the curbing and the existing cartway shall also be provided by the
developer.
F.
On-street parking. Streets shall provide street widths
and right-of-way widths to accommodate parking as specified in Table
185-22.
G.
Street alignment and grade.
(1)
Streets shall be logically related to the terrain
and topography so as to produce usable roads with reasonable alignments
and grades.
(2)
Horizontal street alignments shall be measured along
the centerline. Horizontal curves shall be used at all angle changes
in excess of one degree, and shall have a minimum length of 50 feet.
Single, long radius curves shall be used rather than a series of curves
with varying radii and/or a series of short curves separated by short,
straight segments.
(3)
Minimum centerline radii for horizontal curves shall
be as shown on the following table:
Street Type
|
Minimum Centerline Radii
| |
---|---|---|
Arterial
|
As required by PennDOT or the Board the Supervisors,
whichever governs the street
| |
Collector
|
300 feet
| |
Minor
|
150 feet (Exception: If a street terminated
in a cul-de-sac, and, when extended, would become or is likely to
become a collector street or arterial street, the minimum centerline
radii of the ultimate street classification shall be used.)
| |
Alley
|
75 feet
|
(4)
Vertical curves shall be used in changes in grade
exceeding 1%. The minimum lengths (in feet) of vertical curves shall
be 15 times the algebraic difference in grade. For example, if a 3%
upgrade is followed by a 4% downgrade, the algebraic difference in
grade is 7 [+3-(-4)=7]; the minimum length of the vertical curve would
then be 105 feet (15 by seven equals 105).
(5)
Centerline grade shall not be less than 0.75%, and
shall not be greater than as shown on the following table:
Street Type
|
Maximum Centerline Grade
| |
---|---|---|
Arterial
|
As required by PennDOT or the Board of Supervisors,
whichever governs the street
| |
Collector
|
8.0%
| |
Minor
|
10.0% (Exception: If a street terminated in
a cul-de-sac, and, when extended would become or is likely to become
a collector street or an arterial street, the minimum centerline grade
of the ultimate street classification shall be used.)
| |
Cul-de-sac area
|
2% measured radially from the center point of
the turnaround area to any and all points on its circumference
| |
Alley
|
10.0%
|
H.
Snow dump areas in cul-de-sac right-of-way.
(1)
Permanent cul-de-sac areas shall be provided with
a minimum of two snow dump areas within the cul-de-sac right-of-way.
(2)
Each snow dump area shall be a minimum of 30 feet
in width and shall extend to the full depth of the cul-de-sac right-of-way
from the curb or edge of cartway.
(3)
The snow dump areas shall be located on the portion
of the circle generally opposite the side used by traffic entering
the cul-de-sac.
(4)
Each snow dump area shall be separated radially by
a minimum distance of 25 feet.
(5)
The exact location of snow dump areas shall be delineated
on the final subdivision or land development plan.
(6)
The location of snow dump areas may be marked by the
Township by whatever means may be deemed appropriate including the
installation of vertical posts or marker stakes. It shall be unlawful
for the marker devices to be removed by other than Township employees.
(7)
The snow dump areas shall not be the location of the
following encroachments:
I.
Guide rail required.
(1)
The Township may require a developer to install guide
rail along new streets or common drives which are adjacent to such
physical features which would be of unusual danger to motorists if
guide rails were not installed.
(2)
When required, guide rail shall meet PennDOT specifications
for the Strong Post Type 2 system, and shall be installed in accordance
with § 620 of the Pennsylvania Department of Transportation
Specifications, Form 408, 1994, as amended.
J.
Retaining walls adjacent to right-of-way. Retaining
walls adjacent to the right-of-way shall be placed a minimum distance
from the right-of-way line that would allow the angle of natural repose
of the material being retained to not encroach on the right-of-way
area if the retaining wall would fail or be removed. All such retaining
walls shall be designed by a professional engineer licensed in the
Commonwealth of Pennsylvania.
K.
Minimum sight distance requirement.
(1)
The minimum vertical and horizontal sight distance
at intersections of streets and driveways shall be measured and provided
as shown in Appendix C-1[2] as minimum sight distance requirements.
[2]
Editor's Note: The Appendices and Sample Documents
are included at the end of this chapter.
(2)
If the minimum sight distance can be achieved only
by a line of sight across lands which are not public street rights-of-way,
a clear sight easement shall be established and recorded with the
deed of each affected property. The easement shall prohibit the existence
of structures, vegetation, or change in grade in excess of 24 inches
in height within the clear sight easement. The easement shall establish
the right of the Township to enter and remove any above described
obstructions at the property owner's expense if, after being notified
by the Township to remove said obstructions, the property owner fails
to respond.
L.
At-grade intersections.
(1)
Streets shall be laid out to intersect at right angles.
(2)
The Township may require additional traffic lanes
to facilitate vehicular turning movements at existing or proposed
street intersections which are affected by the development activity.
(3)
Intersections involving the junction or crossing of
more than two streets are prohibited.
(4)
Boulevard type streets having a center median shall
be prohibited unless a perpetual maintenance agreement is proposed
and implemented which will, to the satisfaction of the Township, provide
a guarantee of perpetual maintenance of such center median areas.
(5)
The distance between the centerline of streets intersecting
at grade with a minor street shall be no less than 150 feet measured
along the centerline of the street being intersected.
(6)
The distance between the centerline of streets intersecting
at grade with a collector street shall be no less than 300 feet measured
along the centerline of the street being intersected.
(7)
The distance between the centerline of streets intersecting
at grade with an arterial street shall be no less than 600 feet measured
along the centerline of the street being intersected.
(8)
Where the centerline grade of any street approaching
an intersection exceeds 7% a leveling area shall be provided with
a grade not greater than 4% for a distance of not less than 50 feet
measured from the nearest right-of-way line of the intersecting street.
(9)
The minimum curb radii at street intersections involving
minor streets shall be 20 feet. Intersections involving collector
or arterial streets shall have minimum curb radii of 35 feet.
(10)
Property lines shall be made concentric with
the curb radii.
(11)
Ramped curb cuts shall be provided for sidewalks
in accordance with the Americans With Disabilities Act.
(12)
Driveway entrances or aprons within the street
right-of-way shall be surfaced with asphalt or concrete to their full
width.
M.
Street names and signs.
(1)
Streets shall be provided with street name signs at
all intersections. The signs shall identify the names of each street
involved in the intersection.
(2)
Such signs shall conform to Township specifications
as set forth in the Appendices of this chapter[3] and shall be installed by the developer at the developer's
expense.
[3]
Editor's Note: The Appendices and Sample Documents
are included at the end of this chapter.
(3)
Names of new streets shall not duplicate existing
or platted street names, or approximate such names by the use of suffixes
such as "lane," "way," "drive," "court" or "avenue." In approving
the names of streets, cognizance should be given to existing or platted
street names within the postal delivery district served by their local
post office. New streets shall bear the same name of any continuation
of alignment with an existing or platted street.
(4)
Final selection of street names shall be made by the
Township although proposals are encouraged to be made by the developer.
[Amended 4-10-2007 by Ord. No. 562]
A.
General.
(1)
Streets must be constructed to the grades and dimensions
depicted on the plans, profiles, and cross sections submitted by the
applicant and approved by the Township.
(2)
Before any street construction can begin, the applicant
must install the required utilities and provide, where necessary,
adequate stormwater drainage from the street.
(3)
Pipe underdrain and pavement base drain shall be installed
according to the specifications set forth in Section 610 of the current
edition of the Pennsylvania Department of Transportation Specifications,
Publication 408, at such locations and in such quantities as determined
necessary by the Township. Field conditions may cause underdrain and
pavement base drain to be installed at locations not depicted on approved
drawings.
B.
Inspections.
(1)
All street construction shall be subject to inspection
at any time by the Township or its agent.
(2)
A preconstruction meeting shall be held at the start
of a project with a representative of the Derry Township Department
of Community Development to determine what inspections will be required.
(3)
At a minimum, the following inspections and approvals
shall be made:
(a)
Inspection and approval of the subgrade immediately
prior to the installation of the subbase.
(b)
Inspection and approval of the subbase immediately
prior to the installation of the base course.
(c)
Inspection and approval of the base course immediately
prior to the installation of the wearing course.
(4)
The developer shall notify the Township a minimum
of 24 hours in advance of each required inspection.
(5)
Copies of all stone and material delivery slips shall
be kept on file and be made available for inspection until final approval
by the Township is received.
C.
Specifications. The subgrade, subbase, base course,
binder course, and wearing course of new, reconstructed, or resurfaced
streets shall be designed using the DARWin Pavement Design and Analysis
System or an acceptable alternate procedure that meets the requirements
of the 1993 American Association of State Highway and Transportation
Officials (AASHTO) pavement design procedures or the minimum depths
indicated for each classification of street, whichever is greater,
and constructed according to the following specifications:
(1)
Arterial streets. The developer shall consult with
the Township in the matter of a Township-owned arterial street and
shall consult with the Pennsylvania Department of Transportation in
the matter of Pennsylvania-owned arterial streets. The street specification
shall be governed by whichever entity owns or will own the street.
Unless special conditions exist, it shall be the Township policy to
follow the construction standards of the Pennsylvania Department of
Transportation.
(2)
Collector streets.
(a)
Subgrade. Prior to the installation of the subbase,
the subgrade shall be prepared according to the specifications set
forth in Section 210 of the current edition of the Pennsylvania Department
of Transportation Specifications, Publication 408.
(b)
Subbase. The subbase shall consist of eight
inches of compacted 2A aggregate constructed in accordance with the
specifications set forth in Section 350 and Section 703 of the current
edition of the Pennsylvania Department of Transportation Specifications,
Publication 408.
(c)
Base course. The base course shall consist of
five inches of compacted Hot Mix Asphalt Superpave Base Course, PG64-22,
25 mm mix, 3.0 to 10.0 million ESALs, conforming to Section 309 of
the current edition of the Pennsylvania Department of Transportation
Specifications, Publication 408.
(d)
Wearing course. The wearing course shall consist
of 1 1/2 inches of compacted Hot Mix Asphalt Superpave Wearing
Course, PG64-22, 9.5 mm mix, 3.0 to 10.0 million ESALs, SRL-G, conforming
to Section 409 of the current edition of the Pennsylvania Department
of Transportation Specifications, Publication 408.
(3)
Minor streets.
(a)
Subgrade. Prior to the installation of the subbase,
the subgrade shall be prepared according to the specifications set
forth in Section 210 of the current edition of the Pennsylvania Department
of Transportation Specifications, Publication 408.
(b)
Subbase. The subbase shall consist of eight
inches of compacted 2A aggregate constructed in accordance with the
specifications set forth in Section 350 and Section 703 of the current
edition of the Pennsylvania Department of Transportation Specifications,
Publication 408.
(c)
Base course. The base course shall consist of
three inches of compacted Hot Mix Asphalt Superpave Base Course, PG64-22,
25 mm mix, 0.3 to 3.0 million ESALs, conforming to Section 309 of
the current edition of the Pennsylvania Department of Transportation
Specifications, Publication 408.
(d)
Wearing course. The wearing course shall consist
of 1 1/2 inches of compacted Hot Mix Asphalt Superpave Wearing
Course, PG64-22, 9.5 mm mix, 0.3 to 3.0 million ESALs, SRL-M, conforming
to Section 409 of the current edition of the Pennsylvania Department
of Transportation Specifications, Publication 408.
(4)
Additional paving items that may be required for each
street classification are as follows:
(a)
Binder course: Superpave Asphalt Mixture Design,
HMA Binder Course. This course shall conform to Section 409 of the
current edition of the Pennsylvania Department of Transportation Specifications,
Publication 408.
(b)
Binder leveling course: Superpave Asphalt Mixture
Design, HMA Binder Course (Leveling). This course shall conform to
Section 409 of the current edition of the Pennsylvania Department
of Transportation Specifications, Publication 408.
(c)
Scratch course: Superpave Asphalt Mixture Design,
HMA Wearing Course (Scratch). This course shall conform to Section
409 of the current edition of the Pennsylvania Department of Transportation
Specifications, Publication 408.
(d)
Bituminous tack coat: This tack coat shall conform
to Section 460 of the current edition of the Pennsylvania Department
of Transportation Specifications, Publication 408.
(5)
Alleys. Alleys shall be constructed to the same specifications
as minor streets.
(6)
Skid resistance level (SRL). All new construction,
overlays, and resurfacing work shall use the following guidelines
to determine the appropriate SRL for the coarse aggregate used in
the bituminous wearing course:
Initial or Current Two-Way ADT*
|
SRL Designation
| |
---|---|---|
Above 20,000
|
E
| |
5,001 to 20,000
|
H
| |
3,001 to 5,000
|
G
| |
1,001 to 3,000
|
M
| |
1 to 1,000
|
L
|
*When all traffic for the street travels in
one direction, divide the ADT (average daily traffic) values shown
above by two to determine the required SRL.
|
(7)
Street crown and curbs.
(a)
A street must be designed to provide for the
discharge of surface water from its cartway and right-of-way.
(b)
The slope of the crown on a street shall be
not less than 1/8 of an inch per foot and not more than 3/8 of an
inch per foot measured perpendicularly from the center line of the
street, unless special designs, such as super elevation, require alternate
slope designs which shall be reviewed on an individual basis by the
Township.
(8)
General.
(a)
Superpave Asphalt Mixture Design, HMA Binder
Course or Superpave Asphalt Mixture Design, HMA Wearing Course (Scratch)
shall be used to provide proper crown on resurfaced sections of streets
when directed by the Township.
(b)
Existing sections of streets to be resurfaced
will be prepared with bituminous tack coat prior to resurfacing.
(c)
Paving of bituminous pavement courses will not
be allowed between the dates of October 15 and April 15 without the
expressed written permission of the Township Engineer.
A.
Streets shall have a planting strip located between
the curb and sidewalk.
B.
Street right-of-way areas which are not part of the
paved cartway shall be graded to have a vertical rise of 1/8 inch
per foot from the top of curb or from the edge of paving if no curbing
is installed (see typical street section in the Appendices of this
chapter[1]).
[1]
Editor's Note: The Appendices and Sample Documents
are included at the end of this chapter.
C.
The unpaved portion of the right-of-way shall be provided
with a minimum of four inches of topsoil and shall be seeded with
grass or sodded.
A.
Driveways shall be located at least 60 feet from the
point of intersection of the nearest street right-of-way line unless,
owing to lot dimensions, such a distance is not possible.
B.
In order to provide a safe and convenient means of
access, grades of driveways shall not exceed a 7% grade within 20
feet of the edge of adjacent street paving.
C.
Driveways must be stabilized in order to prevent them
from eroding onto public rights-of-way.
D.
Driveways shall intersect streets only at right angles.
E.
The number of driveway intersections with streets shall be kept to the minimum necessary to serve each lot. Multiple driveways for one lot shall be prohibited unless it can be demonstrated that such an arrangement is necessary for safe and efficient traffic flow or unless multiple driveway connections are necessary to comply with § 185-22C(14) of this article.
[Amended 12-21-2010 by Ord. No. 602]
Stormwater management. All subdivision and/or land development activities shall include stormwater controls in accordance with Chapter 174.
A.
At a minimum easements or rights-of-way shall be established
to accommodate the existence of utility lines, drainage ways, sidewalks
and walkways or emergency access ways.
B.
Where possible, easements or rights-of-way shall be
centered on side and/or rear lot lines, and shall be at least 20 feet
wide. All of the Derry Township Municipal Authority's requirements
regarding sanitary sewer rights-of-way must be met for rights-of-way
and easements involving sanitary sewer facilities.
C.
Such easements or rights-of-way shall be carried to
adjoining street rights-of-way or to other locations as necessary
to provide access to all easements.
D.
Nothing shall be planted or placed within the area
of an easement or right-of-way which would adversely affect the function
of the easement or right-of-way, or conflict with any conditions associated
with such easement or right-of-way.
A.
General.
(1)
Where utility easements or rights-of-way are located
within a subdivision or land development, the applicant shall provide
the Township with a statement from the relevant utilities stating
any conditions associated with the utility easement or right-of-way.
(2)
The developer shall be required to comply with all
rules and regulations of a public utility, Derry Township Municipal
Authority and the Township including regulations relating to design,
installation and inspection thereof, and payment of fees.
B.
Water.
(1)
Development activities regulated by this chapter shall
have an existing or proposed public water main supply system, on a
valid preliminary or final development plan approved by the Township,
extended to serve the development activity if the existing or proposed
public water main supply system is within a cumulative distance of
80 feet from the tract on which the development activity is proposed,
for each dwelling unit proposed or, in the case of nonresidential
development, a cumulative distance of 80 feet for every 250 gpd of
proposed daily water usage.
(2)
Notwithstanding the extension distances set forth in Subsection B(1), above, all development activities required by the provisions of § 225-409 of Chapter 225, Zoning, as amended, and all residential development having more than 10 dwelling units shall be required to connect to an existing public water main supply system.
[Amended 3-28-2017 by Ord. No. 684]
(3)
Where installation of a public water supply system
or public water main supply system is not required, the developer
or owner of the lot shall provide for each lot, at the time improvements
are erected thereon, an individual water supply system.
(4)
Development activities regulated by this chapter,
in which potable water is to be provided by means other than by private
wells owned and maintained by individual lot owners within the subdivision
or development, shall present evidence to the Township confirming
that the subdivision or development is to be supplied by a certified
public utility, a bona fide cooperative association of lot owners,
or by a municipal corporation, authority or utility. A copy of a certificate
of public convenience from the Pennsylvania Public Utility Commission
or an application for such certificate, or a cooperative agreement
or a commitment or agreement to serve the subject areas, whichever
is appropriate, shall be acceptable evidence.
C.
Sanitary sewers.
(1)
Development activities regulated by this chapter shall
have an existing public sanitary sewer, or a public sanitary sewer
proposed on a valid preliminary or final development plan approved
by the Township, extended to serve the development activity if the
existing or proposed public sanitary sewer is within a cumulative
distance of 110 feet from the tract on which the development activity
is proposed for each dwelling unit proposed, or, in the case of nonresidential
development, a cumulative distance of 110 feet for every 250 gpd of
proposed sewage flow.
(2)
Notwithstanding the extension distances set forth in this subsection, all development activity required by the provisions of § 225-409 of Chapter 225, Zoning, as amended, and all residential developments having more than 10 dwelling units, shall be required to connect to an existing public sanitary sewer.
[Amended 3-28-2017 by Ord. No. 684]
(3)
If a public sanitary sewer is not within a distance
of a development activity which would require the extension of such
system, but is within the distance specified of a public sanitary
sewer which, in the opinion of Derry Township Municipal Authority,
will be available and operational within five years, the developer
shall install a system of public sanitary sewers, including all necessary
laterals, within the development site.
(4)
Such mains and laterals shall be capped pending the
availability of the expected or another sanitary sewer system to which
they can be connected.
(5)
When public sanitary sewer mains are proposed to be
located under streets in a new development, they shall be installed
before the new streets are paved.
(6)
Where installation of a public sanitary sewer system
is not required, the developer or lot owner shall provide an approved
private sewage disposal system for each lot.
(7)
Such systems shall be constructed in accordance with
the rules and regulations of the Pennsylvania Sewage Facilities Act
(Act 537).
(8)
All public sanitary sewer system design and construction
shall meet all of the Derry Township Municipal Authority's requirements
including, but not limited to, the latest edition of the Authority's
"Standard Construction and Material Specifications for Sanitary Sewer
Extensions."
B.
When a grid type street system is used, blocks shall
have a maximum dimension (length or width) of 1,200 feet and a minimum
dimension (length or width) of 500 feet.
C.
Blocks for commercial and industrial areas may vary
from the elements of design contained in this section if the nature
of the use requires other treatment.
The arrangement of lots shall conform to the
following requirements:
A.
Every lot shall abut a publicly owned street other
than an alley, unless as part of a cluster development it is permitted
to have frontage on a common drive.
B.
Every lot shall have sufficient means of access to
be reached by emergency vehicles and delivery vehicles in addition
to the vehicles which would routinely access the lot.
C.
Double frontage lots, other than those lots or portions
thereof which are located in an industrial zoning district, shall
not be created unless such lots are abutting collector or arterial
streets and access is provided by a minor street or a marginal access
street.
D.
In the case of a double frontage lot, other than those
lots or portions thereof which are located in an industrial zoning
district, which has one frontage abutting a collector or arterial
street, a planting strip at least 15 feet wide shall be provided for
a screen along the portion of the lot which abuts the collector or
arterial street.
E.
The Township may require a planting strip at least
15 feet wide for a screen adjacent to a railroad line except a railroad
line adjacent to a lot or portion thereof which is located in an industrial
zoning district, public park, stream or other natural feature adjacent
to a lot.
F.
Side lot lines shall be perpendicular to the street
or common drive centerline for a length at least equal to the minimum
lot depth.
I.
Corner lots may be required to have an additional width of at least 10% over the minimum lot width prescribed by Chapter 225, Zoning, to accommodate the additional front yard area from the side street.
J.
The Township may require additional area for lots
with grades exceeding 15% to provide area to control surface water
runoff and/or to provide sufficient area for installation of an approved
private sewage disposal system.
K.
Lots on which two or more residential buildings are
proposed to be constructed shall be given consideration as to the
probability and method of future proposed subdivisions for the purpose
of having each principal building on a separate lot. If believed likely
that a future subdivision may be desired by the landowner or successors
thereto, the developer shall demonstrate how such subdivision could
be achieved. The inability to subdivide in the future shall be sufficient
cause to reject the proposed land development plan.
[Amended 11-12-2019 by Ord. No. 718]
Shade trees shall be provided by the developer
in the street right-of-way area of new streets and along existing
streets.
A.
Newly planted shade trees shall conform to the spacing, size, species, and any special requirements in Chapter 201, Trees.
B.
Depending on the species of shade trees proposed to
be provided, the Township may require root control devices or material
to minimize the effect of root growth on sidewalks, curbs, and underground
utilities.
The developer shall consult with the Township
and all appropriate agencies and utility companies regarding the design
and installation of street furniture and accessories. This section
shall apply to, but not be limited to, pedestrian and vehicular safety
devices, mass transit stops, phone booths, mail boxes, public seating,
information boards, kiosks, signs, water fountains, waste and litter
containers and the like.
A.
COMMERCIAL AREA
HIGH ACTIVITY
INTERMEDIATE AREA
LOW ACTIVITY
MEDIUM ACTIVITY
Definitions. As used in this chapter, the following
terms shall have the meanings indicated:
A business area of a municipality where ordinarily there
are many pedestrians during night hours.
Examples include major-league athletic events, major cultural
or civic events, regional shopping centers and fast food facilities.
Those areas of a municipality often characterized by moderately
heavy nighttime pedestrian activity such as blocks having libraries,
community recreation centers, large apartment buildings, industrial
buildings or neighborhood retail stores.
Examples include neighborhood shopping, industrial employee
parking, educational facility parking and church parking.
Examples include community shopping centers, office parks,
hospital parking areas, transportation parking (airports, etc.), cultural,
civic or recreational events and residential complex parking.
B.
Lighting for safety and convenience shall be provided
along streets, common drives, sidewalks, walkways, in parking compounds
and at street intersections.
C.
Lighting shall be provided along public streets and
at intersections in accordance with an illumination design prepared
by the Pennsylvania Power and Light Company and which has been approved
by the Township.
D.
Lighting shall be provided along common drives, sidewalks,
walkways, and in parking compounds in conformance with the following
table:
Table 185-33
| |||
---|---|---|---|
Use
|
Lux
|
Footcandles
| |
Parking Compound
| |||
Low activity
|
5
|
0.5
| |
Medium activity
|
11
|
1
| |
High activity
|
22
|
2
| |
Common Drive
| |||
Commercial area
|
6
|
0.6
| |
Intermediate area
|
5
|
0.5
| |
Residential area
|
3
|
0.3
| |
Sidewalks and Walkways
| |||
Commercial area
|
10
|
1
| |
Intermediate area
|
6
|
0.6
| |
Residential area
|
2
|
0.2
|
E.
A subdivision or development plan proposing to install
lighting other than public street or intersection lighting shall provide
a certification from a professional engineer licensed by the Commonwealth
of Pennsylvania confirming that the proposed lighting will meet or
exceed the specifications of this section.
F.
The height and shielding of lighting standards shall
provide proper lighting without hazard to vehicle operators.
G.
The Township reserves the right to select the type
of public street lighting fixtures which are installed along public
streets and at street intersections.
H.
Subdivision or development plans shall detail the
types of light standards and fixtures to be utilized.
[Amended 9-8-1998 by Ord. No. 446; 2-22-2000 by Ord. No. 465; 6-10-2003 by Ord. No. 519; 10-13-2015 by Ord. No. 669]
A.
Sidewalks. Sidewalks shall be constructed on both sides of new streets
and on the adjacent sides of abutting streets.
(1)
Sidewalks shall be installed within the right-of-way of new and abutting
streets, and shall be located four inches from the right-of-way line,
except that sidewalk placement may be adjusted along existing abutting
streets to maintain continuity with existing sidewalk, if deemed appropriate
by the Township.
(2)
All sidewalk construction shall be in accordance with the sidewalk
specifications set forth in the Appendices of this chapter.[1]
[1]
Editor's Note: The Appendices and Sample Documents
are included at the end of this chapter.
(3)
Handicapped access curb cuts and ramps shall be provided at pedestrian crosswalks. These facilities shall be designed and installed in accordance with the Pennsylvania Department of Transportation Design Manual Part 2, Chapter 6, "Pedestrian Facilities," 2009, or as may be amended.
(4)
Fee in lieu of installation of sidewalks.
(a)
The applicant may propose (or offer) a fee in lieu of installation
of required sidewalks when the Township determines that one or more
of the following conditions exist:
[1]
Sidewalks are scheduled to be installed as part of a Township,
County, or State project that has been funded for construction.
[2]
The potential impact to sensitive environmental features if
sidewalks are installed outweighs the need for the sidewalks in that
particular location.
[3]
The sidewalks are not logical extensions of or links to other
existing or proposed pedestrian facilities.
[4]
The sidewalks are not a proposed feature as depicted within
the Township's Comprehensive Plan or any Official Map as may
be adopted by the Township.
(b)
The fee amount shall be determined by using RSMeans' Construction
Cost Data, current quarter, regionally adjusted to Hershey, Pennsylvania,
Division 32, line item 320610100310 (Sidewalks, driveways, and patios,
sidewalk, concrete, cast-in-place with 6 x 6 - W1.4 x W1.4 mesh, broomed
finish, 3,000 psi, four inches thick, excludes base) and line item
320610100450 (Sidewalks, driveways, and patios, sidewalks, concrete,
excludes base, for four-inch-thick bank run gravel base) at standard
union rates, based on bare costs without O&P or equivalent cost
data information.
(c)
The fee authorized under this article shall, upon its receipt
by the Township, be deposited in an interest bearing account. The
Township shall maintain records indicating the source of the funds
and the projects where the funds are expended. Interest earned on
the account shall become funds of that account. All fees collected
by the Township pursuant to these provisions shall be utilized for
Township sidewalks, pedestrian walkways, and other related pedestrian
access purposes in a time period as determined by the Township.
B.
Pedestrian walkways.
(1)
The Board of Supervisors may grant a waiver to allow pedestrian walkways
as an alternative to sidewalks located within the street right-of-way,
if the applicant can demonstrate that the alternate system of pedestrian
walkways located outside the street right-of-way will provide for:
(a)
Planned pedestrian systems or bicycle paths as depicted within
the Township's Comprehensive Plan or any Official Map as may
be adopted by the Township;
(b)
Increased safety from vehicle conflicts;
(c)
A more efficient path of pedestrian circulation;
(d)
Extensions or links to an existing pedestrian walkway or bicycle
system; and/or
(e)
Less disturbance of sensitive environmental features.
(2)
The pedestrian walkway system shall be constructed of concrete with a minimum width of five feet, or of asphalt with a minimum width of eight feet. Concrete pedestrian walkways shall be constructed to the same specifications as set forth in this chapter for concrete sidewalks, and asphalt pedestrian walkways shall be constructed in accordance with the specifications for bicycle paths as set forth in § 185-34C of this article.
(3)
Pedestrian walkway systems shall be located within a right-of-way having a minimum width of 20 feet. The right-of-way shall be recorded and shall state that it is for the purposes of ensuring the right of use of the pedestrian walkway by the general public and providing an adequate area for maintenance. The applicant shall also provide a recorded covenant that the property owner shall maintain the pedestrian walkway system in the same manner as prescribed for sidewalks in Chapter 179 (Streets and Sidewalks) of the Code of the Township of Derry.
(4)
A pedestrian walkway system shall provide access to properties on
the opposite side of the street. Access shall be provided at street
intersections; however, if street intersections occur at intervals
in excess of 800 feet, additional points of access may be provided
so that pedestrian walkway intersections with streets occur at intervals
not exceeding 800 feet.
(5)
Handicapped access curb cuts and ramps shall be provided at pedestrian crosswalks to make the transition from street to pedestrian walkway easily negotiable for handicapped persons in wheelchairs and for other persons who may have difficulty in making the step up or down from curb level to street level. These facilities shall be designed and installed in accordance with the Pennsylvania Department of Transportation Design Manual, Part 2, Chapter 6, "Pedestrian Facilities," 2009, or as may be amended.
(6)
The applicant shall propose and guarantee implementation of a reliable
program acceptable to the Township for maintaining the pedestrian
walkway system, including providing for ice and snow removal.
C.
Bicycle paths. The Township may also require the installation of
bicycle paths where a development tract is located in such a manner
that it can provide a connection to an existing bicycle path or will
supplement a bicycle path that has been indicated on an Official Map;
or in other circumstances where available evidence indicates that
such facilities would contribute to public safety.
(1)
Bicycle paths shall have a minimum width of eight feet and shall
be located within a right-of-way having a minimum width of 20 feet.
The right-of-way shall state that it is for the purposes of ensuring
the right of use of the bicycle path by the general public and providing
an adequate area for the maintenance of the path. The right-of-way
shall indicate the party responsible for such maintenance and shall
be recorded in the Office of the Recorder of Deeds of Dauphin County.
(2)
Bicycle paths shall be constructed in accordance with the following
minimum standards:
(a)
All topsoil and all unsuitable materials shall be stripped to
a minimum width of eight feet and a minimum depth of nine inches.
(b)
The subgrade, if not undisturbed soil, shall be compacted to
95% density.
(c)
The subbase shall consist of six inches of PennDOT 2A stone,
compacted to 95% density.
(d)
The binder course shall be Superpave Mix 19mm having a compacted
depth of two inches for "Good" and "Medium" subgrade classes, and
a compacted depth of four inches for aggregate base and two inches
for base for "Poor" subgrade class.
(e)
The wearing surface shall be Superpave Mix 9.5mm having a compacted
depth of one inch for "Good" subgrade class, and 1.5 inches compacted
depth for both "Medium" and "Poor" subgrade classes.
(f)
The surface of the bicycle path shall be graded to provide for
the positive drainage of water from the bicycle path by providing
a transverse slope of 1/4 inch per foot on the surface of the bicycle
path. If it is necessary to slope the bicycle path in two directions,
the slope change shall occur on the centerline so as to have a crown
along the centerline.
(g)
A two-foot-wide grassed shoulder area shall be provided immediately
adjacent to each edge of the asphalt paving. The grassed shoulder
shall be level with the edge of the asphalt and shall have the same
slope as the adjacent asphalt bicycle path measured from the centerline
of the bicycle path. The grassed shoulder shall be seeded on a minimum
of four inches of topsoil.
A.
Stop signs shall be placed at the intersection of
all streets in such a manner as to safely control traffic at intersections.
Four-way stop signs and more sophisticated control devices may be
required if deemed necessary for public safety by Derry Township.
Stop signs shall be erected at the junction of driveways and parking
areas with streets for commercial, industrial and multifamily housing
uses when it is deemed in the best interest of public safety. Graphic
details of stop signs and erection requirements are listed in the
Appendices of this chapter.[1]
[1]
Editor's Note: The Appendices and Sample Documents
are included at the end of this chapter.
B.
All regulatory traffic signs shall meet the requirements
of Title 67 (transportation) of the Pennsylvania Code, 67 Pa. Code
§ 101 et seq.
C.
All regulatory traffic signs required to be erected
by this chapter or proposed to be erected on any development final
plan shall be erected prior to the issuance of any certificate of
occupancy for any building or structure represented on such development
plan.
[Amended 9-8-1998 by Ord. No. 446]
A.
Where a public water main supply or a public water supply system exists or is installed pursuant to the provisions of § 185-28B of this article, the developer shall provide fire hydrants in accordance with this section. The location of new fire hydrants shall be coordinated with nearby existing fire hydrant locations.
B.
Fire hydrant design specifications.
(1)
Nonresidential buildings and dwelling buildings containing
two or more dwelling units shall be located a maximum of 400 feet
from a fire hydrant. All other buildings shall be located a maximum
of 600 feet from a fire hydrant. Measurements shall be made along
the roadway and driveway or access drive to the subject building.
(2)
Hydrants shall be placed with the steamer nozzle facing
toward the vehicular travel lane and shall be located so that they
are accessible to within five feet by fire apparatus.
(3)
Hydrants shall be color coded as follows:
(a)
Class AA, Light Blue: Rated capacity of 1,500
gpm or greater (5,680 L/min).
(b)
Class A, Green: Rated capacity of 1000-1499
gpm (3,785-5,675 L/min).
(c)
Class B, Orange: Rated capacity of 500-999 gpm
(1,900-3,780 L/min).
(d)
Class C, Red: Rated capacity of less than 500
gpm (1,900 L/min).
(e)
Barrels: all fire hydrants shall be of chrome
yellow or equivalent.
(4)
Hydrants shall provide two 2 1/2 inch I.D. port
outlets and one 4 1/2 inch I.D. steamer outlet.
(5)
Nonsprinklered buildings shall have fire hydrant flow
rates calculated in accordance with the "Fire Suppression Rating Schedule"
as published by the Insurance Services Office, New York, New York,
September 1980, and sprinklered buildings shall have fire hydrant
flow rates calculated in accordance with the current National Fire
Prevention Association standard which applies to the building type
being considered.
(6)
The water system supplying the hydrants shall be capable
of meeting maximum domestic consumption at all times plus required
fire flow for a minimum duration of two hours.
(7)
Fire hydrant water supply systems shall be capable
of recharge within eight hours after a full fire flow draw-down for
a two hour duration. Buildings represented on final plans requiring
the installation of fire hydrants shall have all hydrants represented
on the final plan installed an fully operational prior to the issuance
of a certificate of occupancy for any building represented on the
final plan.
A.
Developers shall consult with the Township during
the site design of any nonresidential building or residential building
other than a single-family detached dwelling units to enable the Township
to determine if a fire lane or lanes will be required adjacent to
the proposed building.
B.
If determined necessary, fire lanes shall be established
adjacent to the building or buildings. Such fire lanes shall be a
minimum of six feet in width and shall be reserved for use by emergency
vehicles as defined in the Pennsylvania Vehicle Code, 75 Pa.C.S.A.
§ 102.
C.
Developers shall be responsible for marking fire lanes
by providing and erecting signs, painting lines or other means of
identifying the fire lanes as may be required by the Township.
D.
After a final plan has been approved, but prior to
occupancy of the subject building, the Township shall enact an ordinance
formally establishing the fire lane.
E.
No certificate of occupancy for the subject buildings
shall be issued until an ordinance has been adopted formally establishing
a fire lane, if lanes are deemed necessary to be established during
the initial developer/Township consultation.
F.
No ordinance establishing a fire lane shall be adopted
until such fire lane has been marked and/or identified as determined
necessary by the Township.
A.
All electric, telephone, television and other communication
facility main lines, servicing development activities regulated by
this chapter shall be located within easements or dedicated public
rights-of-way, and installed in accordance with the prevailing standards
and practices of the utility or other companies providing such services.
B.
All electric, telephone, television and other communication
service lines which are newly installed to serve a development activity
regulated by this chapter shall be installed underground.
C.
Underground utility lines shall have a warning tape
placed in the excavation above the utility line as a deterrent to
accidental excavation.
D.
All-season screening of any utility apparatus appearing
above the surface of the ground, other than utility poles, shall be
required.