The following minimums and subdivision principles, standards, and requirements will be applied by the Planning Commission and the Board of Supervisors in evaluating the plans for proposed subdivision.
A. 
Land shall be suited for the purpose for which it is to be subdivided.
B. 
Land subject to hazards of life, health, and safety such as quarry land, open ditches and land subject to flooding shall not be subdivided for residential purposes until all such hazards have been eliminated or unless guarantee is given that adequate safeguards against such hazards are provided by the subdivision plan.
A. 
Proposed roads shall be properly related to Township and state road and highway plans which have been prepared and officially adopted and/or filed as prescribed by law.
B. 
Roads shall be logically related to the topography so as to produce usable lots and reasonable grades.
C. 
Local roads shall be so laid out as to discourage through traffic, but provisions for road connections into and from adjacent areas will be generally required.
D. 
Where a subdivision plat abuts or contains an existing or proposed arterial road, the Planning Commission and the Board of Supervisors may require local access roads, reverse frontage lots, or such other treatment which will provide protection for abutting properties, reduction in the number of intersections with arterial roads and separation of local and through traffic.
E. 
Wherever a tract to be subdivided borders an existing half or partial road, the other part of the road shall be plotted within such tract.
F. 
Cul-de-sac end roads may be permitted when it is clear that through traffic at such a road end is not essential to the road system in that district, or to the development of adjacent properties in the area, or the topography of the ground prohibits the future extension of the roads.
(1) 
A turnaround with a cartway diameter of 80 feet with a right-of-way diameter of 100 feet shall be required at the end of all roads.
(2) 
Unless future extension is clearly impractical or undesirable, the turnaround right-of-way shall be placed adjacent to a property line, and a right-of-way of the same width as the road shall be carried to the property line in such a way as to permit future extension of the road into an adjoining tract.
G. 
If lots resulting from original subdivision are large enough to permit resubdivision, or if a portion of the tract is not subdivided, adequate road right-of-way to permit further subdivision shall be provided as necessary.
H. 
Reserve strips, restricting or controlling access to adjacent roads or properties shall be prohibited.
I. 
Maximum allowable grades - center line of roads.
(1) 
Arterial roads: 6%.
(2) 
Collector roads: 8%.
(3) 
Local roads: 10%.
J. 
Minimum grades on all roads shall not be less than 1%.
K. 
Vertical curves of proper and adequate length shall be installed on all road grade changes exceeding 1%.
L. 
Alignment.
(1) 
Whenever road lines are deflected in excess of 2°, connection shall be made by horizontal curves.
(2) 
To ensure adequate sight distance, minimum center-line radii for horizontal curves shall be as follows:
(a) 
Arterial roads: 1,000 feet.
(b) 
Collector roads: 200 feet.
(c) 
Local roads: 150 feet.
M. 
Widths. Minimum road right-of-way widths and cartway (roadway) widths shall be as follows:
Type of Road
Cartway
(feet)
Right-of-Way
(feet)
Local
20
50
Collector
24
50
Collector (serving more than 50 lots)
30
50
Arterial
40
60
(1) 
Additional right-of-way and cartway widths may be required by the Board of Supervisors for the following purposes:
(a) 
To promote public safety and convenience.
(b) 
To provide parking space in commercial districts and in areas of high density residential development.
(c) 
Where a subdivision abuts or contains an existing road of inadequate right-of-way width, additional right-of-way width in conformation with the above standards may be required.
N. 
Road intersections.
(1) 
Curbs, where required, shall be installed by the subdivider along the roads or where deemed necessary for public safety as determined by the Board of Supervisors. The curbs shall be of the type and material as specified and approved by the Board of Supervisors. All curbs at intersections shall be rounded by a minimum radius of 20 feet.
(2) 
Where the grade of any road at the approach to an intersection exceeds 5%, a leveling area shall be provided with a transitional grade not to exceed 2% for a distance of 25 feet from the nearest right-of-way line of the intersection.
(3) 
Multiple intersections of more than four roads shall be prohibited.
O. 
Road offsets. Road offsets of less than 125 feet shall be avoided.
P. 
Reverse curves. Reverse curves shall have a minimum tangent between them as follows:
[Amended at time of adoption of Code (see Ch. 1, General Provisions, Art. I)]
(1) 
Arterial roads: 300 feet.
(2) 
Collector roads: 150 feet.
(3) 
Local roads: 100 feet.
Q. 
Alleys shall not be permitted.
R. 
Private roads may be approved by the Board of Supervisors for roads serving only one lot.
S. 
Driveways.
(1) 
Driveways shall be located to provide the best visibility possible within the limits of the property that each driveway serves.
(2) 
Driveways shall be constructed not to interfere with roadway drainage. Cross drains shall be constructed beneath the driveway where required to provide adequate drainage.
A. 
Lots shall be subdivided in accordance with the terms of Chapter 300, Zoning, of the Code of the Township of Charleston.
B. 
Subdivision of land other than for residential purposes shall be subject to review by the Planning Commission and the Board of Supervisors insofar as size, depth, width of lots and parking are concerned.
C. 
The frontage width of lots fronting a cul-de-sac shall be determined as the width at the building line. The side yard setback requirements will be calculated from the midpoint of the structure along the average length of both sides of the structure.
D. 
All lot lines shall be set perpendicular or radial to the center line of the road whenever possible. All nonradial lines shall be denoted as such on the plat.
E. 
Lots abutting local roads shall front upon the roads which parallel the long dimension of the block, if possible.
The building lines shall be in accordance with the terms of Chapter 300, Zoning, of the Code of the Township of Charleston.
A. 
Utility and public utility easements shall have a minimum width of 15 feet and be placed at the side or rear of lots whenever possible. When the Board of Supervisors determines that conditions are suitable for essential services an easement reservation will be required.
B. 
Anchor easements shall be approximately four feet by 30 feet and placed on a lot line.
C. 
Aerial easements shall be a minimum of 15 feet.
D. 
Drainage easements with a minimum fifteen-foot width shall be provided where necessary.
E. 
Where a subdivision is traversed by a watercourse, there shall be provided a drainage easement or right-of-way conforming substantially with the line of such watercourse and of such width as will be adequate to preserve natural drainage and provide sufficient width for maintenance purposes.
Reserve strips surrounding the property or areas reserved for any purpose which shall make any area unprofitable for regular or special assessments or which may revert to untended nuisance areas, will not be approved by the Planning Commission and the Board of Supervisors.
The subdivider may choose his road names subject to the approval of the Planning Commission and the Board of Supervisors. No road, other than an extension, may be given the name of an existing road in the Township's postal service area.
In subdividing land, it shall be done in a manner that will not have the effect of debarring adjacent property owners from access to the roads and ways of the alignments.