Street name signs shall be installed at each
street intersection in accordance with the type of materials, designs
and standards established by the Governing Body for use throughout
the Township.
All storm drainage facilities shall be adequately
designed for the anticipated runoff when the area is fully developed,
using criteria or other methods approved by the Township Engineer.
Storm drainage facilities shall comply with, but are not limited to,
the following:
A. Storm sewers shall be located in the street right-of-way
or in designated drainage easements.
B. All pipe culverts and related installations used in
the construction of storm sewers shall be in accordance with standards
and specifications of the Township, county or state, as designated
and approved by the Governing Body.
C. Manholes or inlets will generally be required at changes
in alignment and grade.
D. At no time will roof drains or foundation drains be
allowed to be connected to a sanitary sewer system.
E. Any springs encountered during construction shall
be piped and connected to the storm sewer system or extended to a
natural watercourse as may be approved by the Township Engineer.
F. Concrete headwall and splash aprons shall be constructed
at the outfall of all storm sewers. Where watercourses are piped and
filled, concrete headwalls and splash aprons shall be constructed
at both ends of the pipe.
G. Whenever construction stops or concentrates the natural
flow of surface drainage in such a way as to affect adjoining properties,
written approval must be obtained from the adjoining property owners.
Where storm drainage is piped onto adjoining properties other than
natural watercourses, written permission, a release of damages, and
right-of-way must be obtained from the adjoining property owners before
the storm sewers are taken over by the Township. Approval of plans
by the Township does not authorize or sanction drainage affecting
adjoining properties.
H. All bridges and culverts shall be designed to support
expected loads and to carry expected flows, and shall meet the current
specifications and standards of the Commonwealth of Pennsylvania,
Department of Transportation.
I. A complete drainage plan of the subdivision shall
be submitted, including all necessary storm sewers and appurtenances,
the design of which is based on a ten-year storm frequency, except
in those areas where in the judgment of the Township Engineer or Governing
Body, the likelihood of exceptional damage resulting from stormwater
is such that additional design criteria is required. The drainage
plan shall show the method of drainage of adjacent and contiguous
territory and the method of disposal of all stormwater collected.
The drainage plan shall be accompanied by design calculations.
J. The storm drainage system shall be provided as necessary
to:
(1) Discharge stormwater runoff into common natural watercourses.
(2) Adequately drain all low points along streets.
(3) Intercept street stormwater runoff at intervals related
to the extent and grade of the area drained.
(4) Provide positive drainage away from sewage facilities.
(5) Handle existing off-site runoff through the subdivision.
(6) Insure safe and proper disposal of stormwater where
open watercourses are planned, through adequate safety, erosion and
aesthetic measures.
K. Stormwater management shall meet all state, county
and local standards.
Monuments shall be placed at all block corners,
angle points, points or curves in streets and intermediate points
as determined by the Township Engineer. Monuments shall, at a minimum,
consist of 3/4-inch iron pins or other type of permanent monument
approved by the Governing Body.
Should the subdivider plan to provide trees,
their proposed location, spacing and species must be submitted for
approval to the Governing Body.
The developer shall install street lights at
all intersections shown on the approved plans and at other locations
within the subdivision if deemed necessary by the Governing Body and
Planning Commission. Such street lights shall conform to Duquesne
Light specifications for contemporary type pole luminaries. Specific
pole units shall include P. E. Control No. 36363. Luminarie No. 36640;
two-hundred-fifty-watt Mercury Vapor Lamp No. 32877. Fourteen-foot
pole No. 201202. Installation details to be followed are described
in Duquesne Light specifications VG-8-1.