[Ord. 100-1995, 7/3/1995, § 20.18; as amended by Ord. 04-00, 3/5/2000, Art. III; and by Ord. 2012-04, 5/7/2012]
1. 
Design and Improvements. The design and physical improvements to the property being subdivided shall be provided, constructed and installed by the subdivider as shown on the approved plan in accordance with the requirements of this chapter. If any provisions of this chapter are found to be unreasonable and cause undue and unnecessary hardship as they apply to an applicant's proposed subdivision, the Supervisors may waive or vary the strict terms of such provisions. The criteria for the Supervisors to apply in determining whether to waive or vary the strict applications of a provision are:
A. 
That there exist special physical circumstances or conditions which render the strict application of the requirements as undue or unnecessary hardship.
B. 
That the hardship created cannot be ameliorated by a reasonable change in plans.
C. 
That the unnecessary or undue hardship has not been created by the applicant.
D. 
That the waiver or varying of the strict terms of the chapter will not have the effect of nullifying the intent and purpose of this chapter.
E. 
That the property cannot be reasonably developed without the waiver or the varying of the strict terms of the chapter.
F. 
That the waiver or varying of the strict terms of the chapter will represent the minimum deviation that will afford relief and will represent the least modification possible of the regulations in issue.
2. 
Land Requirements.
A. 
All portions of a tract being subdivided shall be taken up in lots, streets, public lands or other proposed uses so that remnants and landlocked areas shall not be created.
B. 
Reserve strips preventing access to lots, public rights-of-way, public lands or adjacent private lands are prohibited.
C. 
Wherever possible, applicants shall preserve trees, groves, waterways, scenic points, historic spots and other community assets and landmarks.
D. 
Subdivisions and land developments shall be laid out so as to avoid the necessity for excessive cut or fill.
E. 
Land which the Supervisors find to be unsuitable for subdivision building purposes due to flooding, improper drainage, steep slopes, rock formations, adverse earth formations or topography, utility easements or other features which will reasonably be harmful to the safety, health and general welfare of the present or future inhabitants of the subdivision and/or its surrounding areas shall not be subdivided or developed unless adequate methods are formulated by the applicant and approved by the Supervisors, upon recommendation of the Township Planning Commission and Engineer, to solve the problems created by the unsuitable land conditions. Such land shall be set aside for uses that shall not involve such a danger or incorporated into other suitable lots.
3. 
In addition to the use regulations contained in the Spring Township Zoning Ordinance [Chapter 27, § 27-805], the following design standards shall apply to open space and parkland required within a development:
A. 
Preliminary plan for land conservation development shall consist of items 2A through 2J and are intended to show the basic concept of the development and not intended to be construction plans, furthermore, the plan shall be interpreted to meet the land preservation statement of intent of the Zoning Ordinance, § 27-401, Subsection 1, § 27-501, Subsection 1, § 27-502, Subsection 1, § 27-503, Subsection 1, and § 27-504, Subsection 1 [Chapter 27].
B. 
Design Requirements.
(1) 
Unconstrained Conservation Areas.
(a) 
Passive recreation areas.
(b) 
Bike paths and hiking trails.
(c) 
Connection corridors.
(d) 
Parkland (ball fields, swimming pools, pavilions, golf courses, etc.)
(2) 
Identify primary conservation areas.
(a) 
Mature forest land.
(b) 
Shelterbelts and hedgerows.
(c) 
Hydric soils that are not jurisdictional wetlands.
(d) 
Class I, II and III soils as identified in the soil survey of Centre County 1981.
(e) 
Steep slope areas.
(3) 
Identify secondary conservation areas.
(a) 
Identity wetlands by shown on NWI (National Wetlands Inventory) Mapping and/or identified by field studies.
(b) 
One-hundred-year floodplains as shown on FEMA Flood Insurance Rate Map.
(c) 
Continuous and intermittent streams as shown on USGS Topographic Map, with a fifty-foot buffer on both sides from the center line.
(d) 
Land with slopes greater than 25%.
(e) 
Sinkholes within a one-hundred-foot radius around defined upper edge.
(f) 
Wellhead protection zones for existing wells with a one-hundred-foot radius or the minimum distance by State or Federal regulations, whichever is greater.
(g) 
Land under permanent easement prohibiting future development including existing utility easements.
(h) 
Agricultural conservation easements purchased by the State and/or County under the Agricultural Area Security Law, Act of 1981, P.L. 128, No. 43, as amended.
(4) 
Designation of Open Land.
(a) 
Open land shall be the total of the below. Fifty percent shall be reserved as parkland as detailed in the Spring Township Zoning Ordinance [Chapter 27, § 27-805], remainder shall consist of unconstrained and conservation areas.
(b) 
Areas shall be designed as open land in the following order:
1) 
Unconstrained areas.
2) 
Primary conservation areas.
3) 
Secondary conservation areas.
(5) 
Additional data required per § 22-206.
[Ord. 100-1995, 7/3/1995, § 20.19; as amended by Ord. 2012-04, 5/7/2012]
1. 
General.
A. 
Relationship to Other Plans and Ordinances. The location of all streets shall conform to the official map or comprehensive plan adopted by the Township.
B. 
Dedication of Private Streets. Dedication of any street is permitted only if it is totally accessible via a public street and meets the design standards of these regulations. Private streets are permitted only if the Township Engineer certifies that the proposed street has sufficient right-of-way width, grade and other conditions which will make future construction possible in accordance with municipal standards, and if the subdivider submits, at his expense (prior to preliminary approval), to be recorded with the plan, a copy of an agreement made with the Supervisors on behalf of his heirs and assigns establishing the conditions under which the street may later be offered for dedication, stipulating, among other things, that:
(1) 
The private street, unless or until built to municipal standards, shall provide access to no more than three lots sufficient to ensure a mud-free or otherwise permanently passable condition.
(2) 
The street shall conform to the municipal standards or the owners of the abutting lots shall include with the offer of dedication sufficient funds, as estimated by the Township Engineer, to restore the street to conformance with the municipal standards prior to dedication.
(3) 
Any offer to dedicate the street shall be made only for the street as a whole.
(4) 
The methods of assessing repair costs shall be as stipulated in the agreement.
(5) 
Agreement by the owners of 51% of the front footage thereon shall be binding on the owners of the remaining lots.
(6) 
Must either be a through street or provide a cul-de-sac.
C. 
Street Layout. Streets shall be laid out as to discourage through traffic. The arrangement of streets shall provide for continuation of existing or recorded streets. Streets shall be related appropriately to the topography, arranged so as to obtain usable building sites with as many as possible located at or above the street grade. The use of loop streets are encouraged. The use of culs-de-sac is discouraged and are only to be used as a means to gain complete access to building sites. Grades of streets shall conform as closely as possible to the original topography and a combination of steep grades and curves shall be avoided. Parking on both sides of the street is discouraged. At the discretion of the Township, two entrances to any development may be required.
D. 
Street Names. Proposed streets which are obviously in alignment with others already existing and named shall bear the names of the existing streets:
(1) 
In no case shall the name of a proposed street duplicate or approximate phonetically existing or recorded street names in the same postal area or approximate such names by the use of suffixes such as "lane," "way," "drive," "court" or "avenue."
(2) 
All street names shall be subject to the approval of the Spring Township Board of Supervisors and the Centre County 911 EMS office.
(3) 
All house numbers shall be assigned and approved by the Township prior to filing the plan for final approval.
(4) 
Central mail box centers may be required at the discretion of the Township.
E. 
Access to Arterial Streets. Where a subdivision or land development borders on or contains an existing or recorded arterial, the Supervisors may require that access to such street be limited by one of the following means:
(1) 
The subdivision of lots so as to back onto the arterial and front onto a parallel local or collector street; no access shall be provided from the arterial.
(2) 
A series of culs-de-sac, U-shaped streets or short loops entered from and designed generally at right angles to such a parallel street, with the rear lines of their terminal lots abutting the arterial.
(3) 
A marginal access road constructed parallel to the arterial right-of-way. Such access road shall meet all applicable standards contained herein.
F. 
Access Through Adjacent Municipalities. Whenever access to a subdivision or land development is required to cross land in another municipality, assurance shall be provided that such access shall be permitted by the adjacent municipality. The street shall be adequately improved for access through agreement between the property owner and the adjacent municipality prior to final approval of the plan.
G. 
Slope Along Banks. Along streets, the slope of earthen banks, measured perpendicular to the street center line, shall be no steeper than a one-to-three vertical-horizontal measurement for fills and one-to-two vertical-horizontal measurement for cuts.
H. 
Unless otherwise stated, all standards for local streets shall apply to alleys and marginal access streets.
2. 
Width. Minimum street right-of-way and cartway width shall be determined by using the Table of Design Standards in Appendix A.
A. 
Additional right-of-way and cartway widths may be required by the Supervisors for the purpose of promoting the public safety and convenience or to provide additional parking in commercial and industrial areas and in areas of high-density residential development.
B. 
Where a subdivision abuts an existing street with a right-of-way width less than that required herein, the subdivider shall expand such in an amount equal to 1/2 the difference between the existing right-of-way width and that required herein. Where a subdivision contains an existing street with a right-of-way width less than that required herein, the subdivider shall expand such equally on each side in an amount necessary to meet the standards contained herein.
3. 
Grades.
A. 
Center-line grades for public roadways shall conform to standards in Appendix A, Table of Design Standards.
4. 
Curves and Clear Sight Distance.
A. 
Horizontal Curves.
(1) 
Any changes in the horizontal alignment of the roadway center line shall be made through the use of a horizontal circular curve.
(2) 
Minimum horizontal curve radii for the public roadways are as shown in Appendix A, Table of Design Standards.
(3) 
Minimum tangent distances between reverse curves for public roadways are as shown in Appendix A, Table of Design Standards.
B. 
Stopping Sight Distance.
(1) 
Vertical curves shall be provided at all changes of street grades where the algebraic difference exceeds 1%. The vertical curves shall provide the minimum stopping sight distances at a height above grade of 42 inches as shown in Appendix A, Table of Design Standards.
(2) 
At intersections, all earth banks and vegetation shall be cut and removed when such will impede vision between a height of 2 1/2 and 10 feet above the center-line grades of the intersecting streets and within an area bounded by the street right-of-way lines of such corner lots and a line joining points on these street right-of-way lines 25 feet from their intersection.
5. 
Intersection.
A. 
Streets shall intersect as nearly as possible at right angles, and no street shall intersect another at an angle of less than 75° nor more than 105°.
B. 
No more than two streets shall intersect at the same point.
C. 
Wherever possible, local streets shall not intersect directly with arterial streets but shall be linked by means of a collector street.
D. 
Wherever possible, intersections of two streets on opposite sides of a street shall be cross intersections. Any street intersecting with a local or collector street shall be located no closer than 200 feet to another street intersecting the same local or collector street, and any street intersecting with an arterial street shall not be located closer than 1,000 feet to another street intersecting the same arterial street, regardless of whether the two intersecting streets are on the same side or on opposite sides (except where the intersected street has an unbroken median barrier) of said local, collector or arterial street. Distances shall be measured from the center-lines of the two intersecting streets along the center line of said local, collector or arterial street.
E. 
Street curb intersections, where curbs are installed, shall be rounded by a tangential arc with a minimum radius of 20 feet for intersections involving only local streets, 35 feet for all intersections involving a collector street and 50 feet for all intersections involving an arterial street.
6. 
Special Streets.
A. 
Alleys. Alleys are prohibited in developments of single-family detached residences but may be permitted in other types of development, provided that the applicant produces evidence satisfactory to the Supervisors of the need for such alleys and provided that these are not primary means of access.
B. 
Culs-de-Sac and Dead-End Streets.
(1) 
Dead-end streets are prohibited unless designed as permanent cul-de-sac streets or for future access to adjoining properties as stipulated in Subsection 6B(2) below. The Supervisors may require extension of a proposed cul-de-sac to permit access to adjacent property or to connect such street with an adjoining existing or proposed street.
(2) 
Any street dead-ended for access to an adjoining property or because of authorized stage development shall be provided with a temporary, bituminous base course cul-de-sac within the subdivision, and the use of such cul-de-sac shall be guaranteed to the public until such time as the street is extended. The plan shall note that land outside the normal street right-of-way shall revert to abutters whenever the street is continued.
(3) 
Cul-de-sac streets, permanently designed as such, shall be a minimum of 750 feet and maximum of 1,500 feet.
(4) 
A maximum of four lots shall be permitted at the terminus of the cul-de-sac street.
(5) 
The center-line grade on a cul-de-sac street shall not exceed 8%, except at the turnaround where the grade shall not exceed 4%.
(6) 
The Supervisors may require the reservation of easements sufficient to accommodate drainage facilities, pedestrian traffic or utilities from the cul-de-sac to adjoining lands.
C. 
Half Streets. Half streets will not be permitted. Where an existing half street is adjacent to a proposed subdivision or land development, the other half of the street shall be improved by the subdivider in accordance, wherever possible, with the standards of this chapter.
7. 
Paving. Streets must be surfaced to the grades and dimensions shown on the plans, profiles and cross sections approved by the Township Engineer. All streets intended to be dedicated for public use shall be paved to full cartway widths, and paving materials and methods of construction for cartways and shoulders shall conform to municipal standards or applicable standards of the Pennsylvania Department of Transportation.
A. 
All property pins or monuments removed, destroyed or altered by construction shall be accurately replaced in accordance with the approved plan.
B. 
After the streets have been constructed and before such streets are dedicated, the earthen areas between the shoulders or curbs and the right-of-way line shall be finish graded and seeded with grass or other appropriate vegetation to prevent erosion.
8. 
Curbs and Gutters. Curbs and gutters shall be installed along both sides of all streets when such are necessary to control runoff and erosion, stabilize cartway edges, enhance public safety or continue an existing curb or gutter to the next intersection. No portion of the required cartway shall be covered with curbs or gutters. All curbs and gutters shall be constructed to municipal standards. See Appendix B.
9. 
Sidewalks. Sidewalks shall be installed on both sides of the right-of-way of all proposed streets in the following circumstances: when the lot width is 100 feet or less or the lot square footage is 20,000 square feet or less or it is a continuation/extension of an existing sidewalk and at Township discretion. See Appendix B.
A. 
The minimum width of all sidewalks shall be five feet and four inches thick. There shall be a minimum five-foot-wide planting strip of grass between the curb or shoulder and the sidewalk. This planting strip may be used for the location of the streetlights, street signs and trees.
B. 
The grades and paving of the sidewalks shall be continuous across driveways except in nonresidential and high-density residential developments and in certain other cases where heavy traffic volume dictates special treatment.
C. 
The thickness and type of construction of all sidewalks shall be in accordance with the standards established by the Township.
D. 
Sidewalks shall be laterally pitched at a slope of not less than 3/8 inch per foot to provide for adequate surface drainage.
E. 
At corners and pedestrian street-crossing points, sidewalks shall be extended to the curbline with an adequate apron area for anticipated pedestrian traffic and curb cuts and ramps for wheelchairs designed in accordance with A.D.A. standards.
F. 
Sidewalk grades shall not exceed 8%. Where sidewalk grades exceed 5%, a nonslip surface texture shall be used.
10. 
Street Signs. The street signs shall conform to the Township standards for design, placement and erection. Street signs which differ the design of conventional municipal signs may be permitted, provided that the design and size are approved by the Township Supervisors, at the time of the preliminary plan approval. Specialty signs must meet reflectivity requirements and the cost of signs or replacement signs shall be the responsibility of the developer or homeowners association. If the developer or homeowners association does not replace a defective sign, the Township will replace the defective sign with a standard sign.
11. 
Streetlights. Streetlights shall be required at all points of ingress and egress of the proposed development areas, street intersections and culs-de-sac.
A. 
Streetlights shall be placed and have sufficient brightness to completely illuminate intersections. The developer shall install either West Penn Power pole lights or propose an alternate streetlight equal to West Penn Power Company pole lights. Such installations shall be made by the developer and approved by the Spring Township Supervisors and West Penn Power Company, if necessary. The developer shall be responsible for all costs involved in the lighting of streets until such time as the streets are accepted as public streets by the Township. In the case that the streetlights are set on private property, the owner of said property is responsible for the cost and maintenance of the light. (West Penn Power Company or a public utility company.)
B. 
Post lights shall be installed on each lot with a 100-watt bulb and dusk to dawn photo cell.
12. 
Right-of-Way Grading. All land between the back of the curb or the edge of shoulder shall have a positive slope away from the cartway. Streets with curbed road must maintain a rise of 3/8 inch per foot to the right-of-way line. Streets with shoulders must maintain a rise of 5/8 inch per foot to the right-of-way line.
[Ord. 100-1995, 7/3/1995, § 20.20]
1. 
Length. Blocks shall have a minimum length of 300 feet and a maximum length of 1,500 feet.
2. 
Depth. Residential blocks shall be of sufficient depth to accommodate two tiers of lots, except:
A. 
Where reverse-frontage lots are required along an arterial street; or,
B. 
Where prevented by the size, topographical conditions or other inherent conditions of property, in which case the Supervisors may approve a single tier of lots.
3. 
Walkways.
A. 
Walkways shall be required between adjacent residential streets in excess of 1,000 feet in length wherever necessary to facilitate pedestrian and bicycle circulation and to give access to community facilities such as schools and parks. Such walkways shall extend through the approximate center of the block.
B. 
Such walkways shall have the right-of-way width of not less than 10 feet and a sidewalk designed and constructed in accordance with sidewalk standards, Appendix B.
[Ord. 100-1995, 7/3/1995, § 20.20.1; as amended by Ord. 2012-04, 5/7/2012]
See § 22-210, "Acceptance of Public Improvements."
[Ord. 100-1995, 7/3/1995, § 20.20.2; as amended by Ord. 2012-04, 5/7/2012]
See § 22-601, "Construction Inspection Policy and Procedure."
[Ord. 100-1995, 7/3/1995, § 20.20.3]
No action by the Township Supervisors shall be construed to require the Township to accept dedication of any road, street, lane or alley.
[Ord. 100-1995, 7/3/1995, § 20.21]
1. 
General.
A. 
Lot Lines. Insofar as practical, side lot lines shall be at right angles to straight street lines and radial to curved street lines.
B. 
Municipal Boundaries. Where practical, lot lines shall follow municipal boundaries rather than cross them.
C. 
Residential Lot Depth. Generally, the depth of residential lots shall be not less than 1 1/2 nor more than 2 1/2 times their width.
D. 
Lot Drainage. Lots shall be laid out so as to provide positive drainage away from all buildings, and individual lot drainage shall be coordinated with the general storm drainage plan for the area and the stormwater drainage plan submitted with the application for preliminary approval.
2. 
Lot Frontage and Access.
A. 
Access to Public Streets. All lots shall have direct access to a public street (or to a private street if it meets the requirements of these regulations).
B. 
Double or Reverse Frontage. Double or reverse frontage lots shall be avoided except where required to prevent direct access to arterial streets or to overcome specific disadvantages of topography or orientation.
C. 
Arterial Streets. Where a lot abuts an arterial street and an existing local and/or collector street, access shall be from the local or collector street only. Where this chapter requires installation of a local, marginal access or other type of street parallel to an arterial street, all lots abutting such local, marginal access or other type street shall derive access solely therefrom.
3. 
Zoning Requirements. Lot dimensions and areas shall be not less than as specified by the provisions of the Zoning Ordinance [Chapter 27], unless a variance is first granted under provisions of said chapter. No parcel may be subdivided which will create a nonconforming lot or building setback. No parcel may be subdivided which would require, for building purposes, encroachment into floodplains or steep slopes in order to meet other requirements of the Zoning Ordinance [Chapter 27].
[Ord. 100-1995, 7/3/1995, § 20.22; as amended by Ord. 09-00, 10/2/2000]
1. 
All proposed sanitary sewage disposal systems shall comply with applicable rules and regulations of the Pennsylvania Department of Environmental Protection. An approved "planning module" is required as a condition for plan approval.
A. 
Off-Site Systems.
(1) 
Public Sanitary Sewer. All lots located within the designated sewer service area of the Centre County Comprehensive Water and Sewer Plan, 1970, as revised, shall connect to the public sanitary sewer system when deemed feasible, permitted and/or required by the appropriate sewer authority. If sewer service is not presently available to lots in the service area, capped sewers shall be installed for future connection unless off-site service is specifically exempted by revision to the plan. All components of the system shall be designed and constructed in accordance with the standards of the applicable sewer authority.
(2) 
Community Sewage Systems. Community sewage systems (package treatment plant or subsurface disposal) shall be required for subdivisions or land developments outside the sewer service area when such include 10 or more lots with a median lot size of less than one acre. The design of the system shall be approved by the Department of Environmental Protection. An agreement guaranteeing maintenance of the system shall be prepared by the applicant, subject to approval by the Supervisors. Such agreement shall be noted in the deed for each connecting lot and shall specify the responsibilities of each property owner for the proper functioning and maintenance of the system. Must provide letter of commitment to provide service.
B. 
On-site Systems. All lots which will not have off-site sewage disposal shall provide on-site systems approved by the Sewage Enforcement Officer, except for lots intended to remain undeveloped and so exempted by the Supervisors. No lot may be subdivided unless so exempted or found suitable for an approved system.
[Ord. 100-1995, 7/3/1995, § 20.23]
1. 
All water supply systems shall meet applicable State and/or local water authority/company standards.
A. 
All lots located within the designated water service area of the Centre County Comprehensive Water and Sewer Plan, 1970, as revised, shall connect to public water authority/company mains when such is feasible and/or permitted by the appropriate water authority/company. All water mains and laterals shall meet the design and installation specifications of said water authority/company. The developer must provide letter of commitment to provide service.
B. 
Fire hydrants shall be installed with the extension of water mains in locations, approved by the water authority, which assure adequate accessibility of fire equipment and personnel. Fire hydrants shall be placed in such a manner that no lot so served shall be further than 500 feet from a hydrant.
[Ord. 100-1995, 7/3/1995, § 20.24; as amended by Ord. 2012-04, 5/7/2012]
1. 
Utility Easements. In subdivisions containing five or more lots, all electric, telephone and cable television utility lines shall be placed underground. All utilities shall be installed in a manner which will allow safe and ready access for the installation and maintenance of other utilities.
A. 
Utility easements outside street must abut rights-of-way and shall be a minimum of 10 feet in width or as otherwise determined by the appropriate utility company. All other easements outside street rights-of-way shall be centered on or adjacent to rear or side lot lines where feasible.
B. 
Lines connecting utility service to each lot shall be installed in accordance with the standards of the utility company providing such service.
C. 
No structures, trees or shrubs shall be placed or planted within a utility easement.
2. 
Drainageway Easements. Where a subdivision or land development is or will be traversed by a drainage, there shall be provided a drainage easement conforming to the line and width of such adequate to preserve unimpeded flow of natural drainage or for the purpose of installing a stormwater sewer. The owner shall grade and seed the slopes of such after construction where necessary to prevent erosion and sedimentation and in a manner which will not adversely alter the functioning of the drainage. Nothing shall be placed or planted within the drainage easement which will impede the flow of natural drainage.
[Ord. 100-1995, 7/3/1995, § 20.25]
1. 
All monuments and markers required herein shall be accurately placed by a licensed land surveyor prior to final approval of the plan.
A. 
Monuments.
(1) 
Monuments shall be at least six inches square or four inches in diameter and shall be 36 inches long. Monuments shall be made of concrete or stone or by setting a four inch cast iron or steel pipe filled with concrete. They must be set so that the top is level with the finished grade of the surrounding ground and marked on top with a securely embedded copper or brass dowel or other approved material, scored to coincide exactly with the point of intersection of the lines being monumented.
(2) 
Monuments shall be placed at the following points along street rights-of-way: on corners of each intersection, at changes in direction of street lines (excluding curve arcs), at the beginning and end of curves and at intermediate points wherever topographical or other conditions make it impossible to sight between two otherwise required monuments. Land to be conveyed for public use shall be monumented at similar locations along its external boundary.
B. 
Markers.
(1) 
Markers shall consist of iron pipes or steel bars at least 36 inches long and 3/4 inch in diameter.
(2) 
Except where monuments are required, markers shall be set at all lot corners, at all changes in direction of lot lines (except curve arcs) and at the beginning and end of curved lot lines.
[Ord. 100-1995, 7/3/1995, § 20.26; as amended by Ord. 04-00, 3/6/2000; § 20.26; and by Ord. 2012-04, 5/7/2012]
1. 
Shade trees shall be planted by the subdivider within the rights-of-way of all new streets built to provide access to three or more lots in a subdivision. Trees shall be planted on both sides of the street, spaced on fifty-foot centers.
2. 
No tree may be planted within 25 feet of the intersection of two street right-of-way lines or within five feet of proposed driveway entrances or two feet from the cartway or shoulder edge. If the same tree species is used for an entire street, such species may not be used again unless the streets are separated by two streets with different species.
3. 
Existing Trees. Existing trees within the proposed right-of-way may be retained and counted toward fulfillment of the requirements specified above, provided that the location requirements specified above are not violated.
4. 
Tree Selection.
A. 
Tree Species. Shade trees and shrubs used for landscaping and buffer yard purposes shall conform to the list of plants native to Central Pennsylvania as found in the Spring Township Zoning Ordinance [Chapter 27, § 27-804, Subsection 16].
B. 
Other tree and shrub species may be proposed by the developer, provided that such are first approved by the Spring Township Planning Commission. Such species shall be appropriate for local climate extremes, resistant to urban pollution and storm and disease damage, relatively maintenance free and shall present little danger of disrupting utility lines or upheaving sidewalks and driveways. Trees and shrubs listed as invasive species by the Spring Township Zoning Ordinance [Chapter 27, § 27-804, Subsection 15] shall not be used.
5. 
Tree Dedication. Upon dedication of the right-of-way to the Township, all trees within such right-of-way shall revert to Township ownership. It shall be illegal for anyone to prune, spray, plant, remove, cut, burn, injure or fasten wire, rope, signs or other items to such trees or deposit on or into the soil about the base of such trees any chemical deleterious to tree life without first obtaining permission from the Township.
6. 
Landscape Requirements.
A. 
Shade trees shall be planted at 50 feet on center on both sides of the street. Trees shall be planted between 30 feet and 35 feet from the center line of the right of way. Species and size per this section.
B. 
Landscaping of multifamily lots (other than a duplex building on a single lot).
(1) 
Where lot lines abut a single family lot or a public R.O.W. an earthen berm is required. Berm to be a minimum of three feet in height with a maximum slope of two to one. The berm shall be planted with evergreen trees, min. of three feet high at the time of planting and shall be spaced between 10 feet and 20 feet apart. The balance of the berm shall be of a natural and maintenance free material.
C. 
Cul-de-Sac Islands. Islands should be raised above the street level and a minimum of one shade tree shall be planted. A minimum of 10 shrubs shall be worked into the plan to provide virtual maintenance free island.
[Ord. 100-1995, 7/3/1995, § 20.27]
1. 
Erosion and Sedimentation Control Plans. Whenever earth moving activities are proposed for a subdivision or land development which require preparation of an erosion and sedimentation control plan under the rules and regulations of the Centre County Conservation District, the Supervisors may require that a copy of such plan be submitted along with the plan submitted for preliminary approval. Review and approval of such erosion and sedimentation control plan by the Centre County Conservation District or its designated agent shall, in such cases, be required for preliminary approval of the plan.
A. 
Blocks and lots shall be graded to secure proper drainage away from buildings. Alterations to existing storm runoff patterns and amounts shall conform to provisions of the Stormwater Management Ordinance [Chapter 26].
B. 
No excavation shall be made resulting in a slope steeper than one to three vertical-horizontal, and no fill shall be made resulting in a slope steeper than one to 1 1/2 vertical-horizontal, except in the following circumstances:
(1) 
Such excavation and/or fill is for street grading, governed in § 22-302 of this Part.
(2) 
The excavation is located so that a line having a slope of one to three and passing through any portion of the cut face will be entirely inside the property lines of the property on which the excavation is made.
(3) 
The fill is located so that settlement, sliding or erosion will not result in fill being deposited on adjoining property by any means.
(4) 
The materials and methods used to finish such grading are sufficiently stable to sustain a slope of steeper than one to one.
(5) 
The Township Engineer shall review all methods and materials used for such cut and fill operations and shall affirm that such deviation from the slope standard will not result in erosion, sedimentation or injury to persons or damage to adjacent property.
C. 
In all cases, the bottom edge of excavations or fills shall be a minimum of five feet from property lines of developed lots.
[Ord. 100-1995, 7/3/1995, § 20.28; as amended by Ord. 09-00, 10/2/2000]
1. 
Facilities and installations for the control of stormwater shall be designed in accordance with the requirements of the Stormwater Management Ordinance [Chapter 26] and the following:
A. 
Storm sewers, culverts and related installations shall be provided as necessary to:
(1) 
Permit unimpeded flow of natural watercourses.
(2) 
Ensure adequate drainage of all low points along the line of streets.
(3) 
Intercept stormwater runoff along streets at intervals related to the extent and grade of the area drained.
(4) 
Provide positive drainage away from on-site sewage disposal facilities.
B. 
Storm sewers and related installations shall be required only when the runoff stormwater cannot be satisfactorily handled within the street cartway.
C. 
Where existing storm sewers are reasonably accessible, proposed subdivisions shall be required, if necessary, to connect therewith.
D. 
Storm drainage facilities shall be designed to handle not only the anticipated peak discharge from the property being subdivided but also the anticipated runoff that occurs from property at a higher elevation in the same watershed.
E. 
Where a subdivision is traversed by a watercourse, drainage, channel or stream, there shall be provided a drainage easement conforming substantially to the line of such watercourse, drainage, channel or stream and of such width as will be adequate to preserve the unimpeded flow of natural drainage or for the purpose of widening, deepening, relocating, improving or protecting such drainage facilities. Any changes in the existing drainage shall be subject to the approval of the Pennsylvania Department of Environmental Protection.
F. 
Appropriate grates shall be designed for all catch basins, stormwater inlets, and other entrance appurtenances to ensure that maximum openings do not exceed six inches on a side.
G. 
All storm drainage facilities constructed along or crossing State or Township roads shall conform to the applicable requirements of the Pennsylvania Department of Transportation specifications related to such drainage facilities.