A. 
No encroachment, alteration or improvement of any kind shall be made to any watercourse until all adjacent municipalities which may be affected by such action have been notified and until all required permits or approvals have been first obtained from the commonwealth. In addition, the Federal Insurance Administrator and Pennsylvania Department of Community and Economic Development, Bureau of Community Planning, shall be notified prior to any alteration or relocation of any watercourse.
B. 
Where a flood-prone area has been identified which includes a floodway area, the following provisions apply:
(1) 
Within any designated floodway (FW) area, no new construction, development, use, activity or encroachment of any kind shall be allowed, except where the effect of such proposed activity on flood heights is fully offset by accompanying improvements.
(2) 
Within any designated flood-fringe (FF) area, new construction and other development, uses and activities shall be allowed, provided that they are undertaken in strict compliance with the provisions contained in this Part and any other applicable codes, ordinances and regulations.
A. 
Residential structures. Within any FW or FF area, the lowest floor, including basement, of any new or substantially improved structure shall be at the 100-year-flood elevation.
B. 
Nonresidential structures.
(1) 
Within any FW or FF area, the lowest floor, including basement, of any new or substantially improved structure shall be at the 100-year-flood elevation or shall be designed and constructed so that the space enclosed by such structure shall remain either completely or essentially dry during any flood up to that height.
(2) 
Any nonresidential structure or part thereof having a lowest floor (including basement) which is not elevated to the 100-year-flood elevation shall be floodproofed in a completely or essentially dry manner in accordance with the W1 or W2 space classification standards contained in the publication entitled "Flood-Proofing Regulations" published by the United States Army Corps of Engineers (June 1972) or with some other equivalent standard. All plans and specifications for such floodproofing shall be accompanied by a statement certified by a registered professional engineer or architect which states that the proposed design and methods of construction are in conformance with the above-referenced standards.
[Amended 4-14-1993 by Ord. No. 516]
C. 
For all new construction and substantial improvements, fully enclosed areas below the lowest floor that are subject to flooding shall be designed to automatically equalize hydrostatic flood forces on exterior walls by allowing for the entry and exit of floodwaters. Designs for meeting this requirement must either be certified by a registered professional engineer or architect or must meet or exceed the following minimum criteria: A minimum of two openings having a total net area of not less than one square inch for every square foot of enclosed area subject to flooding shall be provided. The bottom of all openings shall be no higher than one foot above grade. Openings may be equipped with screens, louvers or other coverings or devices, provided that they permit the automatic entry and exit of floodwaters.
[Added 4-14-1993 by Ord. No. 516]
The following minimum standards shall apply to all new or substantially improved structures proposed to be constructed 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 is 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 waters without damage to persons or property. The system shall ensure 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 floodwaters into the systems and discharges from the systems into the floodwaters. 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 floodwaters into the system and shall 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, and electrical and telephone systems, being placed in flood-prone areas should be located, elevated (where possible) and constructed to minimize the chance 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 floodwater.
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 ceiling at or below the regulatory flood elevations 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 flood 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 100-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 floodwaters into the system and discharges from the system into floodwaters.
(4) 
All gas and oil supply systems shall be designed to prevent the infiltration of floodwaters into the system and discharges from the system into floodwaters. Additional provision shall be made for the drainage of these systems in the event that floodwater infiltration occurs.
[Amended 4-14-1993 by Ord. No. 516]
Where permitted within any identified floodplain area, all manufactured homes and additions thereto shall be:
A. 
Placed on a permanent foundation.
B. 
Elevated so that the lowest floor of the manufactured home is 1 1/2 feet or more above the elevation of the 100-year flood.
C. 
Anchored to resist flotation, collapse or lateral movement.
D. 
Within any identified floodway area, all manufactured homes and any addition thereto shall be prohibited.