In all areas of special flood hazard, the following standards are required:
A. 
The Planning Board or Zoning Board of Adjustment shall also determine, with the advice and assistance of the Township Engineer, Construction Official and other competent authority, that
(1) 
Proposed construction repairs or alterations shall use construction materials that are resistant to flood damage; shall be designed (or modified) and adequately enclosed to prevent flotation, collapse or lateral movement of the structure resulting from hydrodynamic and hydrostatic loads, including the effects of buoyancy; and shall be constructed with electrical, heating, ventilation, plumbing and airconditioning equipment and other service facilities that are designed and/or located so as to prevent water from entering or accumulating within the components during conditions of flooding. In any zone where manufactured homes might be deemed a permissible use, the standards provided in this section and §§ 87-17 and 87-18 shall apply.
(2) 
Construction methods and practices are used that will resist rupture or collapse from water pressure and minimize flood damage.
(3) 
Proposed utilities and facilities, such as water, sewer and electrical systems are located, elevated and constructed to minimize or eliminate flood damage. These shall include watertight manholes with vents, raised vents, flap valves, etc. Such facilities shall be constructed with overflow elevations two feet above flood level. In addition, on-site waste disposal systems shall be located to avoid impairment to them or contamination from them during flooding.
(4) 
Drainage is provided to reduce exposure to flood hazards.
(5) 
New or replacement water systems and sanitary sewer systems are designed and located to prevent infiltration, leakage, impairment or contamination during flooding.
(6) 
Installation of watertight doors.
(7) 
Use of paints, membranes or mortars to reduce seepage of water through walls.
(8) 
Backfill should be of soils with natural low permeability.
(9) 
Eight inches of compacted granular fill beneath ground floor; such fill materials shall act as a French drain.
(10) 
No buried fuel-oil tanks shall be permitted unless properly anchored and vented, with the vent two feet above the floor level.
(11) 
All mechanical devices and equipment subject to water damage, including furnaces and electrical distribution centers, shall be located at least two feet above flood level.
(12) 
For all new construction and substantial improvements, that fully enclosed areas below the lowest floor are usable solely for parking of vehicles, building access or storage in an area other than a basement and which are subject to flooding shall be designed to automatically equalize hydrostatic flood forces on exterior walls by allowing the entry and exit of floodwaters. Designs for meeting this requirement must either be certified by a registered professional engineer or architect or meet or exceed the following minimum criteria:
[Amended 3-12-2001 by Ord. No. 7-2001]
(a) 
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.
(b) 
The bottom of all openings shall be no higher than one foot above grade.
(c) 
Openings may be equipped with screens, louvers, valves or other coverings or devices, provided that they permit the automatic entry and exit of floodwaters.
B. 
Anchoring.
(1) 
All new construction and substantial improvements shall be anchored to prevent flotation, collapse or lateral movement of the structure.
(2) 
All manufactured homes shall be anchored to resist flotation, collapse or lateral movement by providing over-the-top and frame ties to ground anchors. Special requirements shall be that:
(a) 
Over-the-top ties shall be provided at each of the four corners of the manufactured home, with two additional ties per side at intermediate locations, with manufactured homes less than 50 feet long requiring one additional tie per side.
(b) 
Frame ties shall be provided at each corner of the home, with five additional ties per side at intermediate points, with manufactured homes less than 50 feet long requiring four additional ties per side.
(c) 
All components of the anchoring system shall be capable of carrying a force of 4,800 pounds.
(d) 
Any additions to the manufactured home shall be similarly anchored.
C. 
Construction materials and methods.
(1) 
All new construction and substantial improvements shall be constructed with materials and utility equipment resistant to flood damage.
(2) 
All new construction and substantial improvements shall be constructed using methods and practices that minimize flood damage.
D. 
Utilities.
(1) 
All new and replacement water supply systems shall be designed to minimize or eliminate the infiltration of floodwaters into the system.
(2) 
New and replacement sanitary sewage systems shall be designed to minimize or eliminate the infiltration of floodwaters into the systems and discharge from the systems into floodwaters.
(3) 
On-site waste disposal systems shall be located to avoid impairment to them or contamination from them during flooding.
(4) 
All new construction and substantial improvements shall be constructed with electrical, heating, ventilation, plumbing and air-conditioning equipment and other service facilities that are designed and/or located so as to prevent water from entering or accumulating within the components during conditions of flooding.
E. 
Subdivision proposals.
(1) 
All subdivision proposals shall be consistent with the need to minimize flood damage.
(2) 
All subdivision proposals shall have public utilities and facilities, such as sewer, gas, electrical and water systems, located and constructed to minimize flood damage.
(3) 
All subdivision proposals shall have adequate drainage provided to reduce exposure to flood damage.
(4) 
Base flood elevation data shall be provided for subdivision proposals and other proposed development, including proposals for manufactured home parks and subdivisions, which contain at least 50 lots or five acres, whichever is less.
In all areas of special flood hazard where base flood elevation data has been provided as set forth in § 87-7, Basis for establishing areas of special flood hazard, or in § 87-14B, Use of other base flood data, the following standards are required:
A. 
Residential construction. New construction and substantial improvement of any residential structure shall have the lowest floor, including basement, elevated to or above base flood elevation.
B. 
Nonresidential construction. New construction and substantial improvement of any commercial, industrial or other nonresidential structure shall either have the lowest floor, including basement, elevated to or above the level of the base flood elevation or, together with attendant utility and sanitary facilities, shall:
(1) 
Be floodproofed so that below the base flood level the structure is watertight with walls substantially impermeable to the passage of water.
(2) 
Have structural components capable of resisting hydrostatic and hydrodynamic loads and the effects of buoyancy.
(3) 
Be certified by a registered professional engineer or architect, after development and/or review of structural design, specifications and plans for the construction, that the design and methods of construction are in accordance with accepted standards of practice for meeting the provisions of this subsection. Such certifications shall be provided to the Construction Official as set forth in § 87-14C(2).
C. 
Manufactured homes.
(1) 
Manufactured home shall be anchored in accordance with § 87-16B(2).
(2) 
For all manufactured homes to be placed or substantially improved within areas of special flood hazard, it shall be required that:
(a) 
The manufactured home is elevated on a permanent foundation such that the lowest floor is at or above the base flood elevation.
(b) 
Adequate surface drainage and access for a hauler are provided.
(c) 
In the instance of elevation on pilings:
[1] 
Lots are large enough to permit steps.
[2] 
Piling foundations are placed in stable soil no more than 10 feet apart.
[3] 
Reinforcement is provided for piling more than six feet above the ground level.
(3) 
No manufactured home shall be placed in a floodway, except in an existing manufactured home park or an existing manufactured home subdivision.
Located within areas of special flood hazard established in § 87-7 are areas designated as floodways. Since the floodway is an extremely hazardous area due to the velocity of floodwaters which carry debris, potential projectiles and erosion potential, the following provisions apply:
A. 
Encroachments shall be prohibited, including fill, new construction, substantial improvements and other development, unless a technical evaluation demonstrates that encroachments shall not result in any increase in flood levels during the occurrence of the base flood discharge.
B. 
If Subsection A is satisfied, all new construction and substantial improvements shall comply with all applicable flood hazard reduction provisions of § 87-16.
C. 
The placement of any manufactured homes shall be prohibited, except in an existing manufactured home park or existing manufactured home subdivision.
D. 
In all areas of special flood hazard in which base flood elevation data have been provided and no floodway has been designated, the cumulative effect of any proposed development, when combined with all other existing and anticipated development, shall not increase the water surface elevation of the base flood more than 0.2 foot at any point