Preston Township Wayne County - Shepstone Management Company
Preston Township Wayne County - Shepstone Management Company
Preston Township Wayne County - Shepstone Management Company
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25.3.3 Final approval for subdivisions and land developments which propose private streets<br />
shall not be granted until all applicable standards have been met or street construction is<br />
financially guaranteed.<br />
25.4 Engineering Standards for Private Streets<br />
25.4.1 Right-of-way - The minimum street right-of-way width shall be 50 feet.<br />
25.4.2 Cartway - The minimum width of the cartway shall be 18 feet. The cartway shall<br />
generally be centered within the right-of-way.<br />
25.4.3 Street Construction<br />
<strong>Preston</strong> <strong>Township</strong>, <strong>Wayne</strong> <strong>County</strong><br />
Subdivision and Land Development Ordinance<br />
25.4.3.1 The cartway, shoulders, and ditch areas shall be cleared and grubbed to a<br />
depth sufficient to remove all organic material, and graded to the lines and<br />
profile of the cross-section governing the road design. The design and<br />
construction of the street bed shall take into consideration the supporting<br />
capacities of the subgrade, with particular attention to those soils which are<br />
subject to frost heave.<br />
25.4.3.2 All disturbed areas outside of the ditches shall be graded to match the<br />
existing ground contour, seeded or planted, and mulched until vegetation is<br />
re-established.<br />
25.4.3.3 The base contour shall have a minimum thickness of 8 inches of natural<br />
gravel or durable crushed stone with a maximum size of 6 inches.<br />
25.4.3.4 The surface course shall have a minimum thickness of 4 inches of 2B<br />
modified compacted.<br />
25.4.3.5 The subgrade, base, and surface course shall all be constructed so that there<br />
is a uniform slope away from the center of a minimum of 0.5 inch per foot.<br />
25.3.4 Shoulders. Where curbs are not provided, shoulders 4 feet wide constructed of 6 inches<br />
of natural gravel or durable crushed stone shall be required. They shall slope toward the<br />
ditch 1 inch to 2 inches per foot.<br />
25.3.5 Ditches. Side ditches on both sides of the street shall be provided to handle surface<br />
water from the cartway, back slope, and ground water. The ditches shall be a minimum<br />
of 24 inches deep measured below the elevation of the edge of the shoulder adjacent to<br />
the ditch. They shall have side slopes of a minimum 1.5 horizontal to 1.0 vertical. The<br />
bottom width will be sized to carry the flow from a storm of ten (10) year frequency. Side<br />
ditches shall be provided when the capacity of the parallel ditches is reached for the<br />
design storm. Traverse ditches shall not intersect parallel ditches at an angle of more<br />
than 30 degrees to minimize scour and sedimentation. Where the non-erodible velocity<br />
of the ditch material is exceeded, the ditch shall be lined with stone, concrete, bituminous<br />
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