Street name signs and traffic control signs, as specified by the Board
of Supervisors, shall be installed at each street intersection in accordance
with the type of materials, designs and standards officially established 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 and Engineer.
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, alters or concentrates the
natural flow of surface drainage in any manner that affects adjoining parcels,
plans shall be submitted that detail proposals for handling said water runoff.
All such plans shall be subject to the approval of the Township Engineer and
shall meet all applicable federal, state and local criteria, policies, rules
and regulations.
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 be permanent reference monuments of a precast concrete
or a durable stone, 30 inches by six inches with 45º beveled edges and
shall be set a minimum of two feet in depth.
Should the subdivider plan to provide trees, their proposed location,
spacing and species must be submitted for approval to the governing body.