[Ord. No. 19-87, § 2]
In all areas of special flood hazard, the following standards
are required:
(a)
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. Methods of anchoring may include, but
are not to be limited to, use of over-the-top or frame ties to ground
anchors. This requirement is in addition to the applicable state and
local anchoring requirements for resisting wind forces.
(b)
Construction materials and methods.
(c)
Utilities.
(1)
All new and replacement water supply systems shall be designed
to minimize or eliminate infiltration of floodwaters into the system.
(2)
New and replacement sanitary sewage systems shall be designed
to minimize or eliminate 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)
Electrical, heating, ventilating, plumbing and air-conditioning
equipment and other service facilities shall be designed and/or located
so as to prevent water from entering or accumulating within the components
during conditions of flooding.
(d)
Subdivision and site plan proposals.
[Ord. No. 9-2015, §
6]
(1)
All subdivision and site plan proposals shall be consistent
with the need to minimize flood damage.
(2)
All subdivision and site plan 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 and site plan proposals shall have adequate
drainage provided to reduce exposure to flood damage.
(4)
Base flood elevation data shall be provided for subdivision
and site plan proposals and other proposed development which contain
at least 50 lots or five acres, whichever is less.
(e)
Enclosure openings. 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:
(1)
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;
(2)
The bottom of all openings shall be no higher than one foot
above grade;
(3)
Openings may be equipped with screens, louvers or other coverings
or devices, provided that they permit the automatic entry and exit
of floodwaters.
[Ord. No. 19-87, § 2]
In all areas of special flood hazard where base flood elevation
data have been provided as set forth in Section 11A-6, Basis for establishing
areas of special flood hazard, or in Section 11A-13(b), Use of other
base flood and floodway 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, together with attendant utilities and sanitary facilities,
elevated at or above the base flood elevation plus one foot.
[Ord. No. 9-2015, § 7]
(b)
Nonresidential construction. New construction and substantial improvement
of any commercial, industrial or other nonresidential structure shall
either have the lowest floor, including basement, together with the
attendant utilities and sanitary facilities, elevated to or above
the base flood elevation plus one foot; or:
[Ord. No. 9-2015, § 8]
(1)
Be floodproofed so that below the base flood level plus one
foot 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 effects of buoyancy; and
(3)
Be certified by a licensed professional engineer or registered
architect that the design and methods of construction are in accordance
with accepted standards of practice for meeting the applicable provisions
of this subsection. Such certification shall be provided to the official
as set forth in Section 11A-13(c)(2).
(c)
Manufactured homes.
(1)
Manufactured homes shall be anchored in accordance with Section
11A-15(a)(2); and
(2)
All manufactured homes to be placed or substantially improved
within an area of special flood hazard shall:
[Ord. No. 9-2015, § 9]
(i)
Be consistent with the need to minimize flood damage;
(ii)
Be constructed to minimize flood damage;
(iii)
Have adequate drainage provided to reduce exposure
to flood damage; and
(iv)
Be elevated on a permanent foundation such that the top of the
lowest floor is at or above the base elevation plus one foot.
(d)
All construction in the flood hazard area shall comply with the Flood
Hazard Area Control Act rules, N.J.A.C. 7:13 et seq., as may be amended
from time to time.
[Ord. No. 9-2015, § 10]
[Ord. No. 19-87, § 2; Ord.
No. 3-2000, § 4]
Located within areas of special flood hazard established in
Section 11A-6 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 are 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)
Improvements must comply with Section 11A-17(a). All new construction
and substantial improvements shall comply with all applicable flood
hazard reduction provisions of Article 5 for flood hazard reduction.
(c)
In all areas of special flood hazard in which base flood elevation
data has 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 of a foot at any point.
