The following minimum standards shall apply
for all construction proposed to be undertaken within any identified
flood-prone area:
A. Fill. If fill is used, it shall:
(1) Extend laterally at least 15 feet beyond the building
line from all points.
(2) Consist of soil or small rock materials only. Sanitary
landfills shall not be permitted.
(3) Be compacted to provide the necessary permeability
and resistance to erosion, scouring, or settling.
(4) Be no steeper than one vertical to two horizontal,
unless substantiated data justifying steeper slopes are submitted
to and approved by the Building Permit Officer.
(5) Be used to the extent to which it does not adversely
affect adjacent properties.
B. Drainage facilities. Storm drainage facilities shall
be designed to convey the flow of surface water without damage to
persons or property. The system shall insure drainage at all points
along streets, and provide positive drainage away from buildings.
The system shall also be designed to prevent the discharge of excess
runoff onto adjacent properties.
C. Sanitary sewer facilities. All new or replacement
sanitary sewer facilities and private package sewage treatment plants
(including all pumping stations and collector systems) shall be designed
to minimize or eliminate infiltration of flood waters into the systems
and discharges from the systems into the flood waters. In addition,
they should be located and constructed to minimize or eliminate flood
damage and impairment.
D. Water facilities. All new or replacement water facilities
shall be designed to minimize or eliminate infiltration of flood waters
into the system, and be located and constructed to minimize or eliminate
flood damages.
E. Streets. The finished elevation of proposed new streets
shall be no more than one foot below the regulatory flood elevation.
F. Utilities. All utilities such as gas lines, electrical
and telephone systems being placed in flood-prone areas should be
located, elevated (where possible) and constructed to minimize the
change of impairment during a flood.
G. Storage. No materials that are buoyant, flammable,
explosive, or in times of flooding, could be injurious to human, animal,
or plant life, shall be stored below the regulatory flood elevation.
H. Placement of buildings and structures. All buildings
and structures shall be designed, located and constructed so as to
offer the minimum obstruction to the flow of water and shall be designed
to have a minimum effect upon the flow and height of flood water.
I. Anchoring.
(1) All buildings and structures shall be firmly anchored
in accordance with accepted engineering practices to prevent flotation,
collapse, or lateral movement.
(2) All air ducts, large pipes, storage tanks, and other
similar objects or components located below the regulatory flood elevation
shall be securely anchored or affixed to prevent flotation.
J. Floors, walls and ceilings.
(1) Wood flooring used at or below the regulatory flood
elevation shall be installed to accommodate a lateral expansion of
the flooring, perpendicular to the flooring grain without causing
structural damage to the building.
(2) Plywood used at or below the regulatory flood elevation
shall be of a "marine" or water-resistant variety.
(3) Walls and ceilings at or below the regulatory flood
elevation shall be designed and constructed of materials that are
water-resistant and will withstand inundation.
(4) Windows, doors, and other components at or below the
regulatory floor elevation shall be made of metal or other water-resistant
material.
K. Paints and adhesives.
(1) Paints or other finishes used at or below the regulatory
flood elevation shall be of a "marine" or water-resistant quality.
(2) Adhesives used at or below the regulatory flood elevation
shall be of a "marine" or water-resistant quality.
(3) All wooden components (doors, trim, cabinets, etc.)
shall be finished with a "marine" or water-resistant paint or other
finishing material.
L. Electrical systems and components.
(1) Electric Water heaters, furnaces, air conditioning
and ventilating systems, and other electrical equipment or apparatus
shall not be located below the Regulatory Flood Elevation.
(2) Electrical distribution panels shall be at least three
feet above the one-hundred-year flood elevation.
(3) Separate electrical circuits shall serve lower levels
and shall be dropped from above.
M. Plumbing.
(1) Water heaters, furnaces, and other mechanical equipment
or apparatus shall not be located below the regulatory flood elevation.
(2) No part of any on-site sewage disposal system shall
be located within any identified flood-prone area.
(3) Water supply systems and sanitary sewage systems shall
be designed to prevent the infiltration of flood waters into the system
and discharges from the system into flood waters.
(4) All gas and soil supply systems shall be designed
to prevent the infiltration of flood waters into the system and discharges
from the system into flood waters. Additional provision shall be made
for the drainage of these systems in the event that flood water infiltration
occurs.
[Added 5-23-1985 by Ord. No. 85-7]
A. The provisions of this section shall be applicable,
in addition to any other applicable provisions of this chapter, or
any other ordinance, code, or regulation.
B. In accordance with the Pennsylvania Floodplain Management
Act, and the regulations adopted by the Department of Community
and Economic Development, as required by the Act, any new or substantially
improved structure which will be used for the production or storage
of any of the following materials or substances, or which will be
used for any activity requiring the maintenance of a supply (more
than 500 gallons or other comparable volume, or any amount of radioactive
substances) of any of the following materials or substances on the
premises, shall be subject to the provisions of this section, in addition
to all other applicable provisions:
(11)
Nitric acid and oxides of nitrogen.
(12)
Petroleum products (gasoline, fuel oil, etc.).
(16)
Sulphur and sulphur products.
(17)
Pesticides (including insecticides, fungicides
and rodenticides).
(18)
Radioactive substances, insofar as such substances
are not otherwise regulated.
C. Within any Floodway Area (FW), any structure of the kind described in Subsection
B above shall be prohibited.
D. Additional criteria.
(1) Where permitted within any Flood-Fringe Area (FF), Shallow Floodplain Area (FO), or General Floodplain Area (FA), any structure of the kind described in Subsection
B above shall be:
(a)
Elevated or designed and constructed to remain
completely dry up to at least 1 1/2 feet above the hundred-year-flood;
and
(b)
Designed to prevent pollution from the structure
of activity during the course of a one-hundred-year flood.
(2) Any such structure, or part thereof, that will be
built below the regulatory flood elevation shall be designed and constructed
in accordance with the standards for completely dry floodproofing
contained in the publication "Flood-Proofing Regulations (U.S. Army
Corps of Engineers, June 1972), or with some other equivalent watertight
standard.
E. Except for a possible modification of the freeboard
requirements involved, no variance shall be granted for any of the
other requirements of this section.