Aberdeen Township City Zoning Code
§ 25-5.7
Grading and Site Clearance.
a.
Clearing, excavation and embankment construction shall be in accordance with the applicable requirements of the Standard Specifications and approved Soil Erosion and Sedimentation Control Plan.
b.
No excavated material may be removed from the site except in accordance with an approved site plan or with the prior approval of the Township Engineer. Such material shall be removed from the site and disposed of by the developer.
c.
Where borrow excavation materials from off-site sources are required to complete the necessary grading, such material shall meet the requirements of the Standard Specifications for Borrow Excavation, Zone 3, and shall be subject to the approval of the Township Engineer.
d.
Sites shall be graded to a system of interior drainage in such a manner as to prevent the collection of stormwater or the creation of drainage problems off-site.
e.
Topsoil shall not be removed from lawn areas or open space. Topsoil moved during the course of construction shall be redistributed on the surface as cover and shall be stabilized by seeding or planting. If sufficient topsoil is not available on the site, topsoil meeting the requirements of the Standard Specifications shall be provided to result in a four (4) inch minimum thickness.
f.
Grading shall be performed in a manner which will minimize the damage to or destruction of trees growing on the land. Stripping of trees from a lot or filling within six (6) feet of trees or shrubs to be retained shall not be permitted unless it can be shown to be necessary or unless wells are constructed with extension tiles to the dripline of trees.
g.
Unless otherwise required by the Standard Specifications, all tree stumps, masonry and other obstructions and debris shall be removed to a depth of two (2) feet below finished grade and disposed of in a lawful manner. All dead, dying or diseased trees, standing or fallen, shall be removed from the site. If trees and limbs are reduced to chips they may, subject to the approval of the Township Engineer, be used as mulch in landscaped areas.
h.
The minimum slope for lawns shall be one and one-half (1.5%) percent and for smooth hard-finished surfaces, other than roadways, five-tenths of one (5/10 of 1%) percent.
i.
Unless otherwise approved by the Township Engineer, the maximum grade for lawns within ten (10) feet of a building shall be five (5%) percent.
j.
Retaining walls installed in slope control areas shall be designed as follows:
1.
Said retaining walls shall be constructed of heavy, pressure treated timber or logs, reinforced concrete, other reinforced masonry or of other construction acceptable to the Township Engineer and adequately designed and detailed on the plans to carry all earth pressures, including any expected surcharges.
2.
Proposed retaining walls having a height of greater than three (3) feet shall require calculations to support the design of such walls. Such calculations shall be submitted to the Township Engineer for review.
3.
The height of retaining walls shall not exceed one-third (1/3) of the horizontal distance from the foundation wall of any building to the face of the retaining wall.