Physical improvements to the property being subdivided or developed
shall be provided, constructed, and installed as shown on the record
plan, in accordance with the requirements of this ordinance or other
Township ordinances or regulations, whichever are more restrictive
(see Appendix A, Township Construction Improvement Standards).[1]
601.1
As a condition to review of a final plan by the Township Planning
Commission and Board of Supervisors, the subdivider shall agree with
the Township as to the installation of all improvements shown on the
plan and required by this ordinance or other Township ordinances or
regulations. Before the record plan is endorsed by the Township Planning
Commission and Board of Supervisors, the subdivider shall submit a
completed original copy of the subdivision improvements agreement,
subdivision escrow agreement and subdivision and land development
agreement.
601.2
All improvements installed by the subdivider shall be constructed
in accordance with the design specifications of the Township, including
any promulgated by the Uwchlan Township Municipal Authority (UTMA).
Where there are no applicable Township specifications, improvements
shall be constructed in accordance with specifications furnished by
the Township Engineer, Pennsylvania Department of Transportation,
Pennsylvania Department of Environmental Protection, or such other
state agency as applicable. If there are no applicable Township or
state regulations, the Township may authorize that specifications
be prepared by the Township Engineer or an engineering consultant.
601.3
Supervision of the installation of the required improvements
shall in all cases be the responsibility of the Township or of the
appropriate state regulatory agency.
[1]
Editor's Note: Appendix A is attached to this chapter.
The following improvements, as shown on the record plan, shall
be provided by the subdivider in all subdivisions:
602.1
Street construction standards. All materials for the construction
of streets and the methods of construction and drainage shall be in
accordance with the applicable requirements of Pennsylvania Department
of Transportation Specifications Publication 408, latest revision
thereof, and shall be supplied by vendors approved by the Pennsylvania
Department of Transportation for the supply of such materials. Cross-sections
shall be as described in Table A and Table B and detailed in Appendixes
A-1 and A-2.[1] Inspection of materials and construction methods shall
be as approved in Section 802 of this ordinance.
a.
Street design.
(1)
Thickness of base and paving for new Township streets shall
meet the minimum requirements in Table A and Table B.
|
Table A
(Local Road)
|
Table B
(Collector Road)
| |
|---|---|---|
|
1 1/2 inches superpave asphalt mixture design, HMA wearing
course, PG 64-22, 0.3 to 3 million ESALS, 9.5 mm mix, SRL-H
on
2 inches superpave asphalt mixture design, HMA binder course,
PG 64-22, 0.3 to 3 million ESALS, 19 mm mix
on
4 inches superpave asphalt mixture design, HMA base course,
PG 64-22, 0.3 to 3 million ESALS, 25 mm mix
on
6 inches of 2A modified stone subbase course
on
Class 4, Type B, geotextile fabric on compacted subgrade
|
2 inches superpave asphalt mixture design, HMA wearing course,
PG 64-22, 0.3 to 3 million ESALS, 9.5 mm mix, SRL-H
on
3 inches superpave asphalt mixture design, HMA binder course,
PG 64-22, 0.3 to 3 million ESALS, 19 mm mix
on
6 inches superpave asphalt mixture design, HMA base course,
PG 64-22, 0.3 to 3 million ESALS, 25 mm mix
on
8 inches of 2A modified stone subbase course
on
Class 4, Type B, geotextile fabric on compacted subgrade
|
|
Stone Subbase Course Notes: The stone subbase course shall consist
of stone and screenings meeting with the requirements of Pennsylvania
Department of Transportation Publication 408, as amended. Every attempt
shall be made to completely fill voids with fines. No large areas
of solid screenings or loose stone areas shall be permitted. The application
of bituminous concrete base course materials shall be in accordance
with Pennsylvania Department of Transportation Publication 70 and
Publication 408, both as amended.
|
(2)
The Township may require additional paving, base or subbase
materials where soil types are inferior, wet or otherwise unsuitable
as indicated by the "Soil Survey of Chester and Delaware Counties,
Pennsylvania," prepared by the U.S. Soil Conservation Service or where,
in the opinion of the Township Engineer, field conditions indicate
soil conditions are inferior, wet or otherwise unsuitable.
(3)
Alternate paving sections may be approved by the Township Engineer
as long as the proposed alternative meets the structural strength
achieved with the above pavement specification.
b.
Subgrade.
(1)
The area within the limits of the proposed road surface shall
be shaped to conform to the line, grade and cross section of the proposed
street.
(2)
All unsuitable subgrade material shall be removed.
(3)
All wet or swampy areas shall be permanently drained and stabilized,
subject to the approval of the Township Engineer.
(4)
Fills, within the roadway, shall be made with suitable materials
as approved by the Township Engineer; they shall be thoroughly compacted
for the full width of the cartway in uniform layers of not more than
eight inches thick. No more than two eight-inch layers of fill shall
be laid or placed between inspections by the Township Engineer.
(5)
The subgrade shall be thoroughly compacted by rolling with a
minimum ten-ton, three-wheel roller. Equivalent vibratory, sheep's
foot or rubber-tired rollers may be used with the approval of the
Township Engineer. Subgrade shall be compacted tight and dry, to 95%
compaction at optimum moisture, and shall not be soft and spongy under
the roller. Compaction of the subgrade shall extend the full width
of the cartway, including the width to be occupied by shoulders.
(6)
In fill areas over three feet thick, compaction tests are required
in each eight-inch layer at one-hundred-fifty-foot intervals. A qualified
geotechnical engineer shall test compaction of soils in place according
to ASTM D 1556, ASTM D 2167, ASTM D 2922, and ASTM D 2937, as applicable.
The tests must be performed by a certified testing laboratory and
the results submitted to the Township Engineer for approval. All compaction
must be 95% compaction at optimum moisture. Any layer not coming up
to standard will be removed or rerolled until suitable compaction
is obtained.
(7)
A Class 4, Type B, geotextile shall be placed on the compacted
subgrade.
c.
Paving.
(1)
Paving and base thickness and materials shall be as specified
in § 602.1.a(1) and Table A and Table B above.
(2)
The subbase course, where required, shall be installed and compacted
in accordance with Pennsylvania Department of Transportation Specifications,
Publication 408, and latest edition thereof.
(3)
Bituminous base, binder and surface courses shall be laid to
the specified thickness after compaction. All bituminous courses shall
be laid with a mechanical bituminous paver in accordance with specifications
of the Pennsylvania Department of Transportation Specifications, Publication
408, and latest edition thereof.
(4)
Duplicate delivery slips for all material deliveries shall be
furnished to the Township Engineer and shall become the property of
the Township.
(5)
Failure to adhere to the above specifications shall give the
Township cause to refuse, among other things, to accept streets for
dedication.
(6)
All wearing courses shall be sealed to the concrete curb with
a solid one-foot-wide Class BM-1 bituminous gutter seal.
(7)
A tack coat must be applied to each layer of pavement if not
installed within the same day.
d.
Grading and slopes.
(1)
Roadways shall be graded for the full width of the right-of-way
on each side, unless modified by the Township to avoid disturbance
of significant trees, historic structures, or other significant natural
or cultural resources. Planting strips behind curbs shall be graded
with a minimum slope of 1/2 inch per foot and a maximum slope of one
inch per foot. Beyond the limits of this grading, banks shall be sloped
to prevent erosion, but this slope shall conform to the details included
in Appendixes A-1 and A-2.[2]
[2]
Editor's Note: Appendix A is attached to this chapter.
(2)
All roads shall be constructed with plain cement concrete curb
as detailed in Appendix A-3.
(3)
Seeding. All unpaved areas between the street line and the curb
or shoulders (as the case may be) shall be covered with not less than
six inches of topsoil, fertilized, seeded, and mulched in a manner
and with materials approved by the Township.
e.
Underdrains may be required by the Township to mitigate wet road
conditions.
f.
Utility trench construction (storm sewer, wastewater lines, water
main, gas main, etc.) within existing streets shall be backfilled
with 2A modified stone placed and compacted in eight-inch lifts. The
trench shall be paved with superpave asphalt mixture design, HMA base
course, PG 64-22, 0.3 to 3 M ESALS, 25 mm mix (four inches compacted
depth), superpave asphalt mixture design, HMA binder course, PG 64-22,
0.3 to 3 M ESALS, 19 mm mix (two inches compacted depth), and the
entire roadway shall be paved with a full-width overlayment (edge
of road to edge of road) of superpave asphalt mixture design, HMA
wearing course, PG 64-22, 0.3 to 3 M ESALS, 9.5 mm mix, SRL-L (1.5
inches compacted depth). Utility trenches within proposed streets
shall be backfilled with clean, dry, select material and compacted
in eight-inch lifts to not less than 100% of the dry weight density
of the backfill material. Trenches within easements shall be backfilled
with clean, dry, select material and compacted in twelve-inch lifts
to not less than 100% of the dry weight density of the backfill material
as set forth in ASTM D 698 and Pennsylvania Department of Transportation
Specifications, Publication 408, and latest edition thereof.
g.
During construction of streets, the contractor shall provide maintenance
and protection of traffic meeting Pennsylvania Department of Transportation
standards.
[1]
Editor's Note: Appendix A is attached to this chapter.
602.2
Curbs.
a.
Concrete curbs shall be required at streets, private and public,
at the sole discretion of the Board of Supervisors, and will generally
be required along heavily traveled streets, at intersections and where
street grades require them for proper drainage. Curbs shall be plain
cement concrete curb as detailed in Appendix A-3[3] in accordance with "Pennsylvania Department of Transportation
Publication 72, Standards for Roadway Construction," as last revised.
[3]
Editor's Note: Appendix A is attached to this chapter.
b.
Curbs shall be provided on all parking areas within a land development.
Curb may be replaced with another form of vehicle stop, such as, but
not limited to, bumpers and bollards, at the sole discretion of the
Board of Supervisors, if the applicant can demonstrate that the physical
barrier is not warranted and the elimination of curb helps promote
water quality measures, including filtration and infiltration of stormwater
runoff.
c.
All curbs shall conform to the specifications for Class AA concrete
air-entrained, as specified by the Pennsylvania Department of Transportation
Publication 408, last revised, with a minimum compressive strength
of 3,500 psi after 28 days.
d.
Final curb height, above the wearing course, shall be eight inches.
e.
Curb constructing methods shall be in accordance with Pennsylvania
Department of Transportation Publication 408, last revised.
f.
Where a curb ties into an inlet, two No. 5 reinforced bars 12 inches
long shall be used to connect the curb to the inlet. Driveway curb
depressions shall be reinforced with two No. 5 reinforced bars in
accordance with Pennsylvania Department of Transportation Publication
72, Standards for Roadway Construction.
g.
Depressed curbs at driveways shall be no higher than 1 1/2 inches
above the street surface. The length of this depressed curb shall
not exceed 35 feet without a safety island. This safety island shall
not be less than 15 feet in length. Pipes, grates or other constructions
shall not be placed in the gutter to form a driveway ramp. The depressed
curb at handicapped ramps shall be flush with the paving surface.
h.
New curb cuts for driveways and parking areas shall be limited to
the extent feasible.
i.
Excavations shall be made to the required depth, and the material
upon which the curb is to be constructed shall be compacted to a firm,
even surface to 95% of the maximum dry weight density of the soil.
j.
Where it is necessary to replace existing vertical curbs with depressed
curbing, two ten-foot-long sections of existing curb shall be removed
down to the subgrade without disturbing the adjacent cartway paving.
Any portions of the cartway disturbed during curbing removal or installation
will be repaired to new condition.
k.
Curbing shall be constructed in ten-foot lengths. A premolded bituminous
impregnated expansion joint having a minimum thickness of 1/4 inch
shall be placed between sections of curved curb and at intervals of
not more than 50 feet. Intermediate joints between ten-foot sections
shall be saw cut. However, wherever a driveway enters a street, the
driveway shall not have a curb joint nor be constructed in lengths
longer than 20 feet.
l.
All curb depressions must comply with the requirements of the Americans
with Disabilities Act and the Pennsylvania Universal Accessibility
Act, and the latest Pennsylvania Department of Transportation RC-67M
standards.
602.3
Sidewalks. The following construction standards shall be used
for sidewalks:
a.
The minimum width of all sidewalks shall be four feet, and a minimum
four-foot-wide planting strip between the curb and sidewalk shall
be provided. Additional width may be required, as determined by the
Township, if the walk abuts a fence, a building, walls or parking
areas. Where a sidewalk exists on an adjoining property, the dimensions
may be modified to match existing conditions, provided the sidewalk
is located within the road right-of-way.
b.
The grades shall be continuous across driveways, but the concrete
sidewalk will stop at each side of the bituminous driveway as detailed
in Appendix A-4.[4]
[4]
Editor's Note: Appendix A is attached to this chapter.
c.
The construction of all sidewalks shall be in accordance with the
requirements of the Township.
d.
Sidewalks shall be laterally pitched at a slope of not less than
1/4 inch per foot to provide for adequate surface drainage.
e.
Handicap ramps shall be provided at all intersections. All sidewalks
and sidewalk ramps must meet the requirements of the Americans with
Disabilities Act and the Pennsylvania Universal Accessibility Act.
Shared ramps at intersections are not allowed. Each crossing at an
intersection must have its own ramp. Landing areas may be shared as
detailed in Appendix A-3.
f.
All sidewalks shall conform to the specifications for Class AA concrete,
as specified by the Pennsylvania Department of Transportation, with
a minimum compression strength of 3,500 psi after 28 days.
g.
Where sidewalks abut the curb and a building, wall or other permanent
structure, a premolded expansion joint 1/4 inch in thickness shall
be placed between the curb and the sidewalk for the full length of
such structure. Sidewalks shall be constructed in separate slabs 24
feet in length except for closures. The slabs between expansion joints
shall be divided into blocks four feet in length by scoring transversely.
h.
Sidewalks shall have a minimum thickness of four inches when used
solely for pedestrian traffic. Upon approval of the Township Engineer,
fiber-reinforced concrete may be used as an alternative.
i.
Excavation shall be made to the required depth, whereupon a layer
of four-inch base of 2B aggregate shall be placed and thoroughly compacted
prior to laying the sidewalks when used solely for pedestrian traffic.
j.
Where required by the Board of Supervisors, sidewalks with a minimum
width of four feet shall be installed on both sides of all streets,
except that no sidewalks shall be required along service streets.
k.
All sidewalks shall be placed within the right-of-way, parallel to
the right-of-way line. Gradient shall be continuous across all private
driveways, but the concrete sidewalk will stop at the paved driveway.
602.4
Cul-de-sac turnaround.
a.
The end of a cul-de-sac street shall be constructed with a permanent
curbed turnaround as detailed in Appendix A-5.[5] No more than five residential driveways may enter onto
the curb radius or returns of the cul-de-sac turnaround.
[5]
Editor's Note: Appendix A is attached to this chapter.
b.
If a cul-de-sac street is intended to be extended within a three-year
period after dedication of the street, a temporary noncurbed turnaround
may be considered as detailed in Appendix A-5.1. The Township may
require a barrier to be placed at the end of the temporary turnaround.
c.
The turnaround right-of-way of a cul-de-sac street shall be placed
adjacent to the tract boundary with a fifty-foot right-of-way width
provided along or to the boundary line to permit extension of a street
at full width, unless future expansion of a cul-de-sac street is clearly
impractical or undesirable. The small triangles of land beyond the
cul-de-sac to the boundary shall be dedicated to the Township.
602.5
Street signs. The subdivider shall furnish and install signposts
and street nameplates, approved by the Township, and at least one
street name sign shall be erected at each street intersection. Cul-de-sac
streets shall be provided in addition to a street sign, with a standard
"no outlet" sign at the intersection of a street, furnished and installed
by the subdivider.
a.
Street nameplates shall be put at all intersections, naming all streets
at each intersection, and shall be visible from both directions when
approaching an intersection. Generally, the sign shall be parallel
to the street that it is identifying.
b.
Street nameplates shall match existing street nameplates as currently
used by the Township.
(1)
Street nameplates shall be mounted on a metal signpost.
(2)
The post shall be equipped with such standard rustproofed hardware
as to hold the nameplates rigidly in a proper and permanent position
and to prevent their swaying in the wind.
(3)
The signs shall be preferably of rustproof materials, such as
aluminum, and the proper thickness and properly reinforced at the
edge to have rigidity and stiffness. If they are of a material other
than aluminum, such as steel or cast iron, they shall be adequately
rustproofed by bonderizing or other acceptable methods prior to final
painting. The backgrounds shall be white and the letters green or
other acceptable contrasting colors. The finish shall be equivalent
to a baked enamel, and the letters shall be of the spacing and proportions
as recommended in one of the alphabets used by the Federal Highway
Administration (FHWA) Manual on Uniform Traffic Control Devices (MUTCD),
U.S. Bureau of Public Roads. Lettering on ground-mounted street name
signs should be at least six-inch-high capital letters or six-inch
uppercase letters.
(4)
The signs shall be located with a view to making them seen at
all times with a minimum of effort by both pedestrian and vehicular
traffic, and as close to the side of the cartway or curb as practical,
but no part of the nameplate shall be permitted to overhang any part
of the cartway or curb.
(5)
Types and samples of street nameplates, standards and installation
and location shall be submitted for the inspection and approval of
the Township prior to installation.
c.
Street signs, including stop and speed limit signs, shall be erected
prior to occupancy of the first dwelling on the street.
d.
All signs shall be high-grade reflectivity signage in accordance
with PennDOT Standards Pub. 212 as amended.
602.6
Streetlights.
a.
Poles and standards for streets with underground "parkway" cable
service lines shall be furnished and installed by the subdivider on
all collector streets and streets within industrial or commercial
subdivisions or land developments. Improvements shall be located in
the street right-of-way, approved by the Township and appropriate
public utility, spaced not more than 500 feet apart, and shall be
provided with approved screens.
b.
In residential subdivisions, in lieu of streetlights, the Township
may require an individual lamppost and light be installed at the end
of the driveway one foot behind the street right-of-way or in front
of the house if no driveway exists. All lighting shall comply with
this ordinance and § 615 of the Uwchlan Township Zoning
Ordinance.
602.7
Mailboxes.
602.8
Street trees, buffering, and landscaping.
a.
All subdivisions or land developments shall provide street trees
of varying species along the entire length of any existing or proposed
public road that forms a property boundary and on both sides of any
road within the subdivision or land development, except where the
Township agrees that suitable street trees are already in place.
b.
One of the following street tree planting concepts shall be used,
subject to Township approval:
(1)
Formal allee of street trees.
(a)
Use uniform street tree variety.
(b)
Coordinate new plantings with existing street tree plantings,
where applicable, to obtain a uniform canopy from both sides of the
street or road.
(c)
Street trees shall be located a minimum of two feet back from
the street right-of-way for all subdivisions proposed for single-family
detached dwellings. For single-family attached or multifamily residential
subdivisions, or for mixed-use or village-style developments, street
trees may be planted between the sidewalk and curb, with the minimum
width of the tree lawn (the planted area between the sidewalk and
the curb) being no less than eight feet, in which case trees shall
be tap-rooted, columnar species (see Appendix A-7).[6]
[6]
Editor's Note: Appendix A is attached to this chapter.
(d)
Street trees shall be planted not less than 40 feet nor more
than 60 feet apart, staggered along both sides of the street along
street frontages.
(e)
New plantings shall observe the clear sight triangles to be
provided at local street and major driveway entrances (see Appendix
A-6 of this ordinance). This requirement does not apply to driveways
for single-family detached residences.
(2)
Naturalized street tree planting.
(a)
Varying street tree varieties spaced 10 to 15 feet back from
the street right-of-way line.
(b)
An average of one street tree shall be planted on each side
of the street or road for every 35 feet of street frontage.
(c)
Planting design shall accentuate views and integrate important
landscape elements.
(d)
New plantings shall observe the clear sight triangles to be
provided at driveway entrances (see § 515.C of this ordinance).
c.
Street trees shall meet the following standards:
(1)
Minimum size: 2 1/2 to three inches' caliper; trees of
greater than three inches' caliper are desirable, if locally available.
(2)
Branching height: The height of branching shall depend upon
the size and species of tree; those trees selected for street tree
usage shall have a minimum clearance height of seven feet above grade
before branching begins.
(3)
All trees shall be balled and burlapped in accordance with the
standards of the following publications: "American or U.S.A. Standard
for Nursery Stock," ANSI or U.S.A.S. Z60.1 of the American Association
of Nurserymen, as amended. The ball depth shall be not less than 60%
of the ball diameter and in all cases contain the maximum of the fibrous
roots of the tree. Bare root material is not acceptable. The following
standards shall apply:
|
Caliper
(inches)
|
Minimum Ball Diameter
(inches)
| |
|---|---|---|
|
2 1/2 to 3
|
24 to 28
| |
|
3 to 3 1/2
|
32
|
(4)
Excavated plant pits shall be two feet wider than the ball size.
(5)
Backfill mix for the excavated plant pit shall be composed of
topsoil, compost, or other Township-recommended material.
(6)
Tree guying. Tree guying shall be in accordance with standard
landscaping requirements.
(7)
Tree wrapping paper the entire length of the tree trunk from
the top of ball to the start of lateral branching shall be provided,
tied on with natural twine.
(8)
All tree guying material shall be removed one year after planting.
(9)
All plantings shall be mulched to a depth of three inches in
a six-foot-diameter ring around the base of each tree, or continuous
beds if trees or shrubs are less than six feet apart.
(10)
Pruning: Each plant shall be pruned to preserve the natural
character of the plant in a manner appropriate to the particular plant.
Branches shall be thinned by approximately 25% by the removal of crossing,
damaged or competing limbs back to the major crotch. The leader shall
be left intact.
(11)
Plant material.
(a)
Street tree species for planting shall be selected from the
"Street/Urban Trees" list in Appendices A-7 and A-7.1 of this ordinance.[7]
[7]
Editor's Note: Appendix A is attached to this chapter.
(b)
The use of native species from this list is encouraged, with
trees selected to have minimal maintenance requirements and, at maturity,
to provide adequate summer shade. Selected street tree species shall
be of the nongrafted type. Tap-rooted species shall be required in
locations proximate to roads or sidewalks.
(c)
Plantings and their measurement shall conform to the standards
of the following publications: "American or U.S.A. Standard for Nursery
Stock," ANSI or U.S.A.S. Z60.1 of the American Association of Nurserymen,
as amended. All plant material shall have been grown within the same
USDA hardiness zone as the site, shall be free of disease, and shall
be nursery grown, unless it is determined by the Township that the
transplanting of trees may partially fulfill the requirements of this
section.
d.
Landscape guaranty. All replacement plantings shall be guaranteed
and maintained by the applicant or developer in a healthy and/or sound
condition for at least 18 months or be replaced by the applicant or
developer. The applicant shall escrow sufficient funds for the maintenance
and/or replacement of the proposed vegetation during the eighteen-month
replacement period to insure that funds are available for the applicant's/developer's
use for the removal and replacement of vegetation damaged during construction.
e.
Buffering and screening. Subdivision and land development plans shall
comply with § 607.6 and § 608 of the Uwchlan Township
Zoning Ordinance and this ordinance, as applicable.
f.
General landscaping requirements. Any part or portion of any tract
which is not occupied by buildings or structures or used for loading,
parking spaces and aisles, pedestrian circulation, designated storage
areas, or other permitted impervious or semipervious surfaces shall
be landscaped according to a landscape plan approved by the Township
or shall be left in its natural state (e.g., forest, meadow or hedgerow).
The landscape plan shall be submitted as part of both preliminary
and final plan submissions and shall clearly identify all landscaped
area, all areas subject to vegetation disturbance and replacement
pursuant to § 524 above, and any areas to be left in a natural
state. The landscape plan shall be coordinated with the applicant's
proposed grading plan and shall comply with this ordinance and §§ 607.6
and 608 of the Uwchlan Township Zoning Ordinance.
[Amended 6-13-2022 by Ord. No. 2022-04]
(1)
Applicants shall reference Appendix A-7[8] for recommended
plant species for various design and cultural considerations.
[8]
Editor's Note: Appendix A-1 is included as an attachment to this chapter.
(2)
No plant species shall be installed that is classified as invasive
by the U.S. Department of Interior National Park Service Invasive
Plant Atlas (invasiveplantatlas.org) or similar recognized authoritative
source.
(3)
Deciduous shade trees, including street trees, shall meet the following
criteria:
(a)
Minimum size at planting shall be two-and-one-half-inch caliper.
(b)
No fewer than 75% of proposed shade trees shall be of native species.
(c)
When 10 to 40 shade trees are proposed, no more than 50% may be of
one species. Street trees shall also meet this requirement.
(d)
When more than 40 shade trees are proposed, no more than 35% may
be of one species. Street trees shall also meet this requirement.
(4)
Deciduous understory/flowering trees shall meet the following criteria:
(a)
Minimum size at planting shall be two-inch caliper, or eight feet
in height for multi-stem plants.
(b)
No fewer than 75% of proposed deciduous understory/flowering trees
shall be of native species.
(c)
When 10 to 40 deciduous understory/flowering trees are proposed,
no more than 50% may be of one species.
(d)
When more than 40 deciduous understory/flowering trees are proposed,
no more than 35% may be of one species.
(6)
Shrubs shall meet the following criteria:
602.9
Sewers.
a.
Storm sewers. Storm sewers and related facilities shall be designed
and installed consistent with the design principles and requirements
contained in this ordinance and the Uwchlan Township Stormwater Management
Ordinance.[9]
(1)
Storm sewers, inlets, endwalls, manholes, and other related
items shall be manufactured, constructed, and installed in accordance
with the latest edition of Pennsylvania Department of Transportation
Publication No. 72M, Road Construction Standards, and Publication
408, Specifications.
(2)
The minimum pipe size shall be 18 inches in diameter for any
public or privately owned storm sewer conveyance system. Storm sewers
for conveyance of roof drains or U'drains may be less than 18 feet
in diameter.
(3)
All storm sewers shall be laid to a minimum depth of one foot
measured from the top the compacted subgrade to the crown of the pipe
unless the pipe manufacturer requires additional fill depth over the
pipe.
(4)
Storm sewer conveyance systems may be constructed with RCP (Type
A), Reinforced Concrete Pipe (heavy duty), CCGSP, coated (polymer)
corrugated galvanized steel pipe and TP, thermoplastic pipe Group
I, II, III or IV (60 inches max). Alternate pipe designs may be considered
dependent upon environmental factors when approved by the Township
Engineer.
(5)
In inlets and manholes, a minimum of two inches in elevation
shall be provided between the invert in and out of the pipe, for pipes
of the same diameter. For pipes that vary in size, the crown elevation
of the pipes shall be matched.
(6)
Outlet pipes for permanent stormwater basins shall be constructed
with RCP (Type A) reinforced concrete pipe (heavy duty) with watertight
joints.
(7)
Storm sewers may not enter the corner of an inlet. The storm
sewer shall enter an inlet with the crown of the pipe at least six
inches minimum below the top of the box. Waterproof grout shall be
used to anchor the pipe into the inlet. The pipe must be cut flush
with the interior wall of the inlet box. All pipes shall be saw cut.
(8)
Storm sewers shall be extended to storm basins, if used, or
to a point at least 100 feet beyond any home site as approved by the
Township Engineer.
(9)
Stormwater pipes must be oriented at right angles to electric,
water, sanitary sewer, and gas utilities when crossing above or beneath
them. Crossing angles of less than 90° will only be permitted
at the discretion of the Township Engineer. When skewed crossings
are permitted, interior angles between alignment of the storm sewer
pipe and the utility may not be less than 45°. Vertical and horizontal
design of storm sewers must be linear.
(10)
All open-ended storm sewers must be provided with a concrete
endwall.
(11)
All inlets shall be furnished with bicycle-safe grates unless
located in a swale, etc.
(12)
All inlets and manholes located in paved areas must be overexcavated
a minimum of two feet around the structure and backfilled with crushed
stone aggregate.
(13)
The maximum spacing of inlets and manholes shall 300 feet.
(14)
Double inlets must be spaced a minimum of 10 feet apart.
(15)
Inlet and manhole risers shall be a one-piece solid structure
a minimum of three inches thick. Bricks for use as a riser will not
be allowed.
(16)
All present inlet boxes, endwalls, manholes, and pipe materials
shall be manufactured by an approved PennDOT supplier.
(17)
No connections of roof drains, storm sewers, and others shall
be made directly to a storm sewer pipe. All connections must be made
to an inlet or manhole.
b.
Sanitary sewage disposal system(s).
(1)
Sanitary sewage disposal systems shall be provided consistent with the design standards and requirements contained in Article V of this ordinance.
(2)
Whenever a subdivider proposes that individual on-site sanitary
sewage disposal systems shall be utilized within the subdivision,
the subdivider shall either install such an approved facility, approved
by the Pennsylvania Department of Environmental Protection and/or
the Chester County Health Department, or shall guarantee (by deed
restriction or otherwise) as a condition of the sale of each lot or
parcel within the subdivision that such facilities can be installed
by the purchaser of such lot or parcel.
(3)
In all other cases, the subdivider shall provide a complete
community or public sanitary sewage disposal system. The design and
installation of such public system shall be subject to the approval
of the Township Engineer and the UTMA. The design and installation
of such community distribution system shall be subject to the approval
of the Pennsylvania Department of Environmental Protection, and such
system shall be further subject to the satisfactory provision for
the maintenance thereof.
(4)
Where studies by the Township Planning Commission or UTMA indicate
that construction or extension of sanitary trunk sewers to serve the
property being subdivided appears probable within a reasonably short
time (up to five years), the Township Planning Commission and the
Board of Supervisors shall require the installation and capping of
sanitary sewer mains and house connections, in addition to the installation
of temporary, individual, on-site sanitary sewage disposal systems.
It shall, however, be the responsibility of the Township to supervise
the design and installation of such capped sewers.
(5)
Terminal manhole location. In order to provide an efficient
sewer system and to minimize sewer duplication, it is the Township
policy that all publicly owned sewer extensions shall be sized and
located to accept the efficient connection of sewers from other subdivisions
or future sewered areas of the Township. During the review of sewer
drawings for proposed subdivision sewers, the UTMA or its engineer
will designate future connection points, if any, to the proposed sewers.
The portion of the proposed sewer which is designated as a connection
point shall be extended or situated (at the developer's expense) on
the property boundary at a depth and location provided by the UTMA
or its engineer.
602.10
Water supply.
a.
Water supply system(s) shall be installed consistent with design principles and requirements contained in Article V of this ordinance and Township standards.
b.
Where the subdivider proposes that individual on-site water supply
systems shall be utilized within the subdivision, the subdivider shall
either install such facilities or shall guarantee (by deed restriction
or otherwise) as a condition of the sale of each lot or parcel within
the subdivision that the facilities can be installed by the purchaser
of such lot or parcel.
c.
Wherever feasible, the subdivision shall be provided with a complete
public or community water distribution system. The design and installation
of such public system shall be subject to the approval of the Township
Engineer; the design and installation of such community distribution
system shall be subject to the approval of the Pennsylvania Department
of Environmental Protection; and such system shall be further subject
to satisfactory provision for the maintenance thereof.
602.11
Fire hydrants. Wherever a public or community water system is
provided, fire hydrants suitable for the coupling of equipment serving
the Township shall be installed as specified by the Insurance Services
Offices of Pennsylvania. Locations of hydrants shall be approved by
the Lionville Fire Company and by the Township Fire Marshal.
602.12
Trails shall be required in any subdivision or land development
where it is desirable, in the opinion of the Board of Supervisors,
to provide access to community facilities (schools, shopping areas,
recreation areas, etc.), or to continue sidewalks or trails that are
existing in adjacent developments, or to ensure the safety of pedestrians
in unusual or peculiar conditions with respect to prospective traffic,
or where proposed sidewalks and trails are shown on Map 4-4, Plans
for Parks, Recreation and Open Space — Walkway Network, of the
Township 2010 Comprehensive Plan Update.
a.
All trails shall be continually offered to the Township for dedication.
A note stating this shall be placed on the subdivision or land development
plan. This shall include a twenty-foot-wide easement centered on the
trail. Additionally, the developer must provide a written continuing
offer of dedication to the Township that includes a metes and bounds
description of the easement.
b.
The following design standards shall be used for trails:
(1)
The trail surface shall be bituminous pavement having a minimum
depth of three inches.
(2)
Trails shall cross roadways and parking lots at a ninety-degree
angle and include appropriate signage. Trail grades shall not exceed
5%. Where trails cross driveways, they shall be delineated with striping
and appropriate signage.
(3)
Trails shall be constructed to the dimensions shown in Appendix
A-7.[10] Trails shall be a minimum of six feet wide, except along
collector and arterial streets and adjacent to shopping centers, schools,
recreation areas, and other community facilities, where they shall
be a minimum of eight feet wide.
[10]
Editor's Note: Appendix A is attached to this chapter.
(4)
Trail excavations shall be made to the required depth, and a
Class 4, Type B, geotextile fabric shall be placed over the compacted
subgrade. A subbase layer of crushed stone, PennDOT 2-A Type C, not
less than six inches thick, shall be placed and thoroughly compacted
prior to laying the trail (this may be achieved in one lift). The
base course shall extend out a distance of 18 inches from the paved
width on either side of the trail before tapering to subgrade.
(5)
Trail paving shall consist of a bituminous concrete base course
having a compacted depth of two inches and a wearing course having
a compacted depth of one inch. A tack coat shall be applied between
the two courses, and any joints must be sealed. Trails under construction
shall comply with the requirements of § 602.12.b of this
ordinance.
(6)
Trails shall be constructed with appropriate drainage swales
and surface pitch or crowning so that water flows off the trail in
a perpendicular sheet flow.
(7)
Trails shall be graded at street or parking lot intersections
to provide handicapped accessibility.
(8)
Trails shall provide connections to the development's internal
sidewalk system and any adjacent tract's trails and sidewalk systems.
Alignments do not necessarily have to follow exactly those proposed
in Map 4-4, Plans for Parks, Recreation and Open Space — Walkway
Network, of the Township 2010 Comprehensive Plan Update; however,
they should enter/depart the development in close proximity to the
alignment shown.
c.
Waiver. The design standards set forth in § 602.12.b above
may be waived if environmental or topographic constraints preclude
the use of a paved trail or 5% maximum slope.
602.13
Parking lots. The required number of parking spaces shall be
in accordance with the Uwchlan Township Zoning Ordinance.[11] The dimensions of parking stalls and aisles shall be in
accordance with Appendix A-9;[12] the pavement section for a parking lot shall be determined
based on the use of the parking lot but shall be no less than 1 1/2
inches of bituminous wearing course on two inches of bituminous binder
course on six inches of crushed stone.
[12]
Editor's Note: Appendix A is attached to this chapter.
603.1
Monuments shall be placed at sufficient locations to define
the exact location of all roads and to enable the reestablishment
of all road lines. In general, monuments shall be set on the road
line on one side of the road at the beginning and ending of all curves
and at those points on the curve at road intersections necessary to
establish the actual intersection. Monuments shall be placed at the
tract perimeter where no markers exist, as required by the Township.
603.2
Markers shall be placed at all points where lot lines intersect
road lines or other lot lines, at all angle points in lot lines, and
tangent points of curves, except where concrete monuments are required.
603.3
Monuments shall be concrete with a minimum top width of four
inches by four inches and a bottom width of six inches by six inches.
The minimum height shall be 24 inches. The concrete monument shall
have a metal component detectable by an electromagnetic locator.
603.4
Markers shall be steel bars at least 24 inches long and not
less than 5/8 inch in diameter.
603.5
Utility easements shall be monumented at their beginning, their
end, and at all directed changes. The monumentations shall be placed
in the ground after final grading is completed. The monumentation
shall be either a concrete monument or marker, as required by the
Township.
603.6
All monuments and markers shall be certified for accuracy by
the developer's engineer and their accuracy checked by the Township
Engineer. Accuracy of monument/markers shall be within 3/100 of a
foot.
603.7
In cases where it is impossible to set a monument or where the
permanency of a monument may be better ensured by offsetting the monument
with a reference monument(s), the Township may authorize such procedure,
provided that proper instrument sights may be obtained and complete
offset data is designated on the record plan. A reference monument
(preferably two) should be set on the boundary line(s) that intersect
the corner.
604.1
Easements with a minimum width of 30 feet shall be provided
for all utilities. Additional width may be required for access and
maintenance as determined by the Township. Permanent or temporary
construction easements may also be required at the sole discretion
of the Township.
604.2
Easements shall be centered on or adjacent to rear or side lot
lines.
604.3
Nothing shall be permitted to be placed, planted, set or put
within the area of an easement unless necessary for the purpose of
the easement, including but not limited to plants, trees or fences.
604.4
Drainage easements shall be required along watercourses and
drainage structures. Easements with a minimum width of 30 feet shall
be provided for all drainage structures and swales.
604.5
Sanitary sewer easements with a minimum width of 30 feet shall
be provided for all sanitary sewer structures located outside of the
street right-of-way.
604.6
Easements shall be required along existing trails which are
to remain. At the discretion of the Township, such easements may be
dedicated to the Township for public use.
604.7
Where stormwater or surface water will be gathered within a
subdivision or land development and discharged or drained over lands
within or beyond the boundaries of the subdivision or land development,
the applicant or owner shall reserve or obtain easements over all
lands affected if flow patterns are changed, as deemed by the Township.
These easements shall be adequate for such discharge of drainage and
for the carrying off of such water and for the maintenance, repair
and reconstruction, including the right of passage over and upon the
same by vehicles, machinery and other equipment for such purposes,
and shall be of sufficient width for such passage and work. The width
of the easement shall be as required by the Township.
604.8
The Township may accept dedication of easements prior to the
final dedication of improvements to enforce such easements during
construction or prior to the completion of all improvements.
604.9
Metes and bounds descriptions shall be provided for all easements.
604.10
The applicant shall provide, where required by the Township,
a method of physically delineating easements for emergency access,
pedestrian access or other utilization across private lots. Such method
may include shrubbery, trees, fence, markers, or other methods acceptable
to the Township.
604.11
Any easement or right-of-way required herein shall be made part
of the deeds to all affected properties. Any error found in a deed
shall be immediately corrected and rerecorded in the Chester County
Recorder of Deeds' office at the sole expense of the applicant. The
applicant shall be solely responsible to the buyer for any failure
to record an easement or right-of-way shown on the approved plan.
Failure to record an easement or right-of-way shown on the approved
plan shall not prevent its intended use from being utilized. All easements
and rights-of-way shown on the final plan of record shall be deemed
to be incorporated in the appropriate deed.
605.1
All other utility lines, including but not limited to electric,
telephone, cable and security, shall be placed underground. Installation
of all utilities shall be in strict accordance with the engineering
standards and specifications of the Township and of the public utility
concerned.
605.2
Underground utilities shall be installed before the roads are
constructed, as approved by the Township.
605.3
Easements shall be required to facilitate the maintenance and
repair of utility lines. Facilities shall be located within a right-of-way
or in the center of an easement not less than 30 feet wide.
605.4
All proposed utility locations shall be coordinated so as not
to conflict with landscaping requirements.
605.5
In accordance with the provisions of the Pennsylvania Utility
Line Protection Act, Act 287 of 1974, as amended (Act 199 of 2004),[1] an applicant shall contact all applicable utilities and
accurately determine the locations and depths of all underground utilities
within the boundaries of the tract proposed for development prior
to excavation. A list of the applicant's utilities and each utility's
phone numbers shall appear on the plans submitted for review, and
proof of contact shall be presented in the form of the Pennsylvania
One Call System serial number.
[1]
Editor's Note: See 73 P.S. § 176 et seq.
606.1
It shall be unlawful for any person, except any department or
authority of the Township, to perform any work, including opening
or excavation in or under any Township street, unless and until a
permit therefor shall be secured from the Township for each separate
undertaking. All work performed within the right-of-way shall conform
to the provisions of PennDOT Publication 213, Temporary Traffic Control
Devices. Notwithstanding the aforesaid, a permit shall not be required
in the following instances:
606.2
The Township Manager or Code Enforcement Officer or any duly
authorized agent of the Township may prohibit any work being done
without a proper permit or contrary to the terms thereof.
a.
A permit will not be issued for an open trench excavation on any
road for a period of five years after a new bituminous wearing course
has been installed.
606.3
Backfilling. All openings made in the cartway or in paved shoulders
shall be backfilled by the permittee in accordance with the following
minimum standards:
a.
The opening shall be backfilled with No. 2 RC aggregate, compacted
in not more than six-inch layers, with approved vibratory compaction
equipment.
b.
Compaction shall be completed to the bottom elevation of the existing
pavement.
c.
Temporary or permanent restoration shall be placed at the end of
each working day.
606.4
Permanent restoration: Prior to replacement of the pavement,
one foot from each edge of the trench shall be saw cut, in a neat,
straight line, to the bottom elevation of the existing asphalt, and
the detached material shall be removed. Drilling shall not be permitted.
All material shall comply with PennDOT Form 408. Refer to Appendix
A-10 for trench and flexible pavement restoration details.[1]
[1]
Editor's Note: Appendix A is attached to this chapter.
606.5
The Township may require modified specifications if, determined
during the construction, the existing road section is greater than
the specified section listed above in Section I(1). If a concrete
road base is located below the asphalt roadway, the trench restoration
must include a concrete base of similar depth and material.
606.6
Temporary restoration.
a.
Temporary restoration. The 2RC aggregate backfill material shall
be placed in accordance with § 606.4 above with a surface
of a two-inch compacted cold patch asphalt. The Township may require
the temporary restoration to be made and kept in place for up to 60
days after backfilling the trench.
(1)
Weather pending, the permanent restoration shall be made within
120 days of roadway opening. Outside air temperatures at time of permanent
restoration shall comply with PennDOT Form 408 specifications (40°
and rising).
606.7
Additional restoration.
a.
All disturbed portions of the street, including all appurtenances
and structures, such as guardrail or drainpipes, shall be restored
to a condition equal to or better than that which existed before the
start of any work authorized by the permit.
b.
If the permittee opens the street pavement, whether to install a
new facility or to modify an existing facility or for any reason other
than to perform emergency work pursuant to § 606.1 above
(relating to emergency work), and the wearing course is less than
seven years old, the permittee shall, in addition to the minimum restoration
conditions outlined in this section of this article (relating to special
conditions - subsurface operations), overlay the entire street pavement
in accordance with the following conditions:
(1)
When a longitudinal opening longer than 10 feet and wider than
three feet is made in the street pavement, the permittee shall overlay
the traffic lane(s) in which the opening was made, for the entire
length of street that was opened.
(2)
When two or more transverse trench openings are made by the
permittee in the street pavement less than 100 feet apart, the permittee
shall overlay all traffic lanes in which the openings were made, for
the entire length of the street between such openings.
c.
Regardless of the age of the wearing course, when both longitudinal
and transverse trench openings are made in the street pavement, the
Township may require the permittee to overlay all traffic lanes in
which such openings were made, for the entire length of street that
was opened, if the Township Manager or Code Enforcement Officer determines
that the present serviceability of the street has been impaired by
the openings.
d.
Any lawn area disturbed as part of the work shall be restored to
the condition prior to the start of work
(1)
A minimum of six inches of screened topsoil shall be placed
at all locations of lawn restoration.
(2)
Disturbed areas shall be permanently stabilized with quality
seed mixture and straw mulch. Seed mixture shall match existing grass
type.
(3)
Erosion control blanket shall be placed on all slopes that are
3:1 or greater. Blanket must be placed on all areas where erosion
occurs or on locations specified by the Township.
(4)
All wheel ruts created by the construction shall be restored
to the condition prior to the start of work.
606.8
Enforcement. Any violation of the regulations set forth in this
article shall constitute grounds for imposition of any or all of the
following penalties:
a.
Upon receipt of oral or written notice of any violation(s) from the
Township's authorized representative, the permittee shall cease to
perform any further work in the permitted area except to restore the
area to a safe condition. No further work shall commence in the permitted
area until the violation(s) has been remedied. Where the permittee
has received oral notice of the violation(s), written notice shall
be sent to the permittee within five days of receipt of the oral notice.
b.
Confiscation of the applicant's permit or emergency permit card by
the Township Manager or Code Enforcement Officer.
c.
Revocation of the applicant's permit or emergency permit card by
the Township Manager or Code Enforcement Officer.
d.
Removal by the utility facilities' owner of facilities installed
without a permit or in violation of the regulations set forth in this
article.
606.9
Penalties. Any person who shall violate any provision of this
article shall, upon conviction thereof in a summary proceeding before
a District Justice, be sentenced to pay a fine of not less than $200
nor more than $1,000, together with costs of prosecution. The continuation
of such violation for each successive day shall constitute a separate
offense, and the person or persons allowing or permitting the continuation
of a violation may be punished as provided above for each separate
offense.
