[HISTORY: Adopted by the Mayor and Council
of the Borough of Park Ridge 4-14-1981 by Ord. No. 81-3; amended in its entirety 8-13-2019 by Ord. No. 2019-019. Subsequent amendments noted where applicable.]
The Legislature of the State of New Jersey has in N.J.S.A. 40:48-1.,
et seq. delegated the responsibility to local governmental units to
adopt regulations designed to promote the public health, safety, and
general welfare of its citizenry. Therefore, the governing body of
the Borough of Park Ridge, of Bergen County, New Jersey does ordain
as follows:
A.
The flood hazard areas of the Borough of Park Ridge are subject to
periodic inundation which results in loss of life and property, health
and safety hazards, disruption of commerce and governmental services,
extraordinary public expenditures for flood protection and relief
and impairment of the tax base, all of which adversely affect the
public health, safety and general welfare.
B.
These flood losses are caused by the cumulative effect of obstructions
in areas of special flood hazards which increase flood heights and
velocities and, when inadequately anchored, cause damage in other
areas. Uses that are inadequately floodproofed, elevated or otherwise
protected from flood damage also contribute to the flood loss.
It is the purpose of this chapter to promote the public health,
safety, and general welfare, and to minimize public and private losses
due to flood conditions in specific areas by provisions designed to:
A.
Protect human life and health.
B.
Minimize expenditure of public money for costly flood control projects.
C.
Minimize the need for rescue and relief efforts associated with flooding
and generally undertaken at the expense of the general public.
D.
Minimize prolonged business interruptions.
E.
Minimize damage to public facilities and utilities, such as water
and gas mains, electric, telephone and sewer lines, streets, bridges
located in areas of special flood hazard.
F.
Help maintain a stable tax base by providing for the sound use and
development of areas of special flood hazard so as to minimize future
flood blight areas.
G.
Ensure that potential buyers are notified that property is in an
area of special flood hazard.
H.
Ensure that those who occupy the areas of special flood hazard assume
responsibility for their actions.
In order to accomplish its purposes, this chapter includes methods
and provisions for:
A.
Restricting or prohibiting uses which are dangerous to health, safety,
and property due to water or erosion hazards or which result in damaging
increases in erosion or in flood heights or velocities.
B.
Requiring that uses vulnerable to floods, including facilities which
serve such uses, be protected against flood damage at the time of
initial construction.
C.
Controlling the alteration of natural floodplains, stream channels
and natural protective barriers, which help accommodate or channel
floodwaters.
D.
Controlling filling, grading, dredging and other development which
may increase flood damage.
E.
Preventing or regulating the construction of flood barriers which
will unnaturally divert floodwaters or which may increase flood hazards
in other areas.
A.
Unless specifically defined below, words or phrases used in this
chapter shall be interpreted so as to give them the meanings they
have in common usage and to give this chapter its most reasonable
application.
B.
AH ZONE
AO ZONE
APPEAL
AREA OF SHALLOW FLOODING
AREA OF SPECIAL FLOOD HAZARD
BASE FLOOD
BASE FLOOD ELEVATION
BASEMENT
BREAKAWAY WALL
DEVELOPMENT
DIGITAL FLOOD INSURANCE RATE MAP (DFIRM)
ELEVATED BUILDING
EROSION
EXISTING MANUFACTRED HOME PARK OR SUBDIVISION
FLOOD INSURANCE RATE MAP (FIRM)
FLOOD INSURANCE STUDY (FIS)
FLOOD or FLOODING
FLOODPLAIN MANAGEMENT REGULATIONS
FLOODPROOFING
FLOODWAY
FREEBOARD
HIGHEST ADJACENT GRADE
HISTORIC STRUCTURE
(1)
(a)
(b)
(c)
(d)
LOWEST FLOOR
MANUFACTURED HOME
MANUFACTURED HOME PARK OR MANUFACTURED HOME SUBDIVISION
NEW CONSTRUCTION
NEW MANUFACTURED HOME PARK OR SUBDIVISION
RECREATIONAL VEHICLE
START OF CONSTRUCTION
(1)
(2)
STRUCTURE
SUBSTANTIAL DAMAGE
SUBSTANTIAL IMPROVEMENT
(1)
(a)
(b)
VARIANCE
VIOLATION
As used in this chapter, the following terms shall have the meanings
indicated:
Areas subject to inundation by 1% annual chance shallow flooding
(usually areas of ponding) where average depths are between one and
three feet. Base flood elevations (BFEs) derived from detailed hydraulic
analyses are shown in this Zone.
Areas subject to inundation by 1% annual chance shallow flooding
(usually sheet flow on sloping terrain) where average depths are between
one and three feet.
A request for a review of the Construction Code Official's
interpretation of any provision of this chapter or a request for a
variance.
A designated AO or AH Zone on a community's Digital
Flood Insurance Rate Map (DFIRM) with a 1% annual or greater chance
of flooding to an average depth of one to three feet where a clearly
defined channel does not exist, where the path of flooding is unpredictable
and where velocity flow may be evident. Such flooding is characterized
by ponding or sheet flow.
Land in the floodplain within a community subject to a 1%
or greater chance of flooding in any given year. It is shown on the
FIRM as Zone V, VE, V1-30, A, AO, A1-A30, AE, A99, or AH.
A flood having a 1% chance of being equaled or exceeded in
any given year.
The flood elevation shown on a published Flood Insurance
Study (FIS) including the Flood Insurance Rate Map (FIRM). For Zones
AE, AH, AO, and A1-30 the elevation represents the water surface elevation
resulting from a flood that has a 1% or greater chance of being equaled
or exceeded in any given year.
Any area of the building having its floor subgrade (below
ground level) on all sides.
A wall that is not part of the structural support of the
building and is intended through its design and construction to collapse
under specific lateral loading forces without causing damage to the
elevated portion of the building or supporting foundation system.
Any man-made change to improved or unimproved real estate,
including but not limited to buildings or other structures, mining,
dredging, filling, grading, paving, excavation or drilling operations,
or storage of equipment or materials located within the area of special
flood hazard.
The official map on which the Federal Insurance Administration
has delineated both the areas of special flood hazards and the risk
premium zones applicable to the community.
A nonbasement building built in the case of a building in
an area of special flood hazard, to have the top of the elevated floor,
elevated above the base flood elevation plus freeboard by means of
piling, columns (posts and piers), or shear walls parallel to the
flow of the water, and adequately anchored so as not to impair the
structural integrity of the building during a flood of up to the magnitude
of the base flood. In an area of special flood hazard "elevated building"
also includes a building elevated by means of fill or solid foundation
perimeter walls with openings sufficient to facilitate the unimpeded
movement of floodwaters.
The process of gradual wearing away of land masses.
A manufactured home park or subdivision for which the construction
of facilities for servicing the lots on which the manufactured homes
are to be affixed (including, at minimum, the installation of utilities,
the construction of streets, and either final site grading or the
pouring of concrete pads) is completed before the effective date of
the floodplain management regulations adopted by a community.
The official map on which the Federal Insurance Administration
has delineated both the areas of special flood hazard and the risk
premium zones applicable to the community.
The official report in which the Federal Insurance Administration
has provided flood profiles, as well as the Flood Insurance Rate Map(s)
and the water surface elevation of the base flood.
A general and temporary condition of partial or complete
inundation of normally dry land areas from the overflow of inland
or tidal waters and/or the unusual and rapid accumulation or runoff
of surface waters from any source.
Zoning ordinances, subdivision regulations, building codes,
health regulations, special purpose ordinances (such as a floodplain
ordinance, grading ordinance and erosion control ordinance) and other
applications of police power. The term describes such state or local
regulations, in any combination thereof, which provide standards for
the purpose of flood damage prevention and reduction.
Any combination of structural and nonstructural additions,
changes, or adjustments to structures which reduce or eliminate flood
damage to real estate or improved real property, water and sanitary
facilities, structures and their contents.
The channel of a river or other watercourse and the adjacent
land areas that must be reserved in order to discharge the base flood
without cumulatively increasing the water surface elevation more than
0.2 foot.
A factor of safety usually expressed in feet above a flood
level for purposes of floodplain management. "Freeboard" tends to
compensate for the many unknown factors that could contribute to flood
heights greater than the height calculated for a selected size flood
and floodway conditions, such as wave action, bridge openings, and
the hydrological effect of urbanization of the watershed.
The highest natural elevation of the ground surface prior
to construction next to the proposed or existing walls of a structure.
Any structure that is:
Listed individually in the National Register of Historic Places
(a listing maintained by the Department of Interior) or preliminarily
determined by the Secretary of the Interior as meeting the requirements
for individual listing on the National Register;
Certified or preliminarily determined by the Secretary of the
Interior as contributing to the historical significance of a registered
historic district or a district preliminarily determined by the Secretary
to qualify as a registered historic district;
Individually listed on a state inventory of historic places
in states with historic preservation programs which have been approved
by the Secretary of the Interior; or
Individually listed on a local inventory of historic places
in communities with historic preservation programs that have been
certified either by an approved state program as determined by the
Secretary of the Interior; or directly by the Secretary of the Interior
in states without approved programs.
The lowest floor of the lowest enclosed area (including basement).
An unfinished or flood-resistant enclosure, usable solely for the
parking of vehicles, building access or storage in an area other than
a basement is not considered a building's "lowest floor," provided
that such enclosure is not built so to render the structure in violation
of other applicable nonelevation design requirements of 44 CFR Section
60.3.
A structure, transportable in one or more sections, which
is built on a permanent chassis and is designed for use with or without
a permanent foundation when attached to the required utilities. The
term "manufactured home" does not include a "recreational vehicle."
A parcel (or contiguous parcels) of land divided into two
or more manufactured home lots for rent or sale.
Structures for which the start of construction commenced
on or after the effective date of a floodplain regulation adopted
by a community and includes any subsequent improvements to such structures.
A manufactured home park or subdivision for which the construction
of facilities for servicing the lots on which the manufacture homes
are to be affixed (including at a minimum, the installation of utilities,
the construction of streets, and either final site grading or the
pouring of concrete pads) is completed on or after the effective date
of the floodplain management regulations adopted by the municipality.
A vehicle which is built on a single chassis; 400 square
feet or less when measured at the longest horizontal projections;
designed to be self-propelled or permanently towable by a light duty
truck; and designed primarily not for use as a permanent dwelling
but as a temporary living quarters for recreational, camping, travel,
or seasonal use.
(For other than new construction or substantial improvements
under the Coastal Barrier Resources Act (P.L. 97-348), includes substantial
improvements and means the date the building permit was issued, provided
that the actual start of construction, repair, reconstruction, rehabilitation,
addition, placement, or other improvement was within 180 days of the
permit date. The actual start means either the first placement of
permanent construction of a structure on a site such as the pouring
of a slab or footings, the installation of pilings, the construction
of columns, or any work beyond the stage of excavation, or the placement
of a manufactured home on a foundation.
Permanent construction does not include land preparation, such
as clearing, grading and filling nor does it include the installation
of streets and/or walkways, nor does it include excavation for a basement,
footings or piers, or foundations or the erection of temporary forms,
nor does it include the installation on the property of accessory
buildings, such as garages or sheds not occupied as dwelling units
or not part of the main structure. For a substantial improvement,
the actual start of construction means the first alteration of any
wall, ceiling, floor or other structural part of a building, whether
or not that alteration effects the external dimensions of the building.
A walled and roofed building or a gas or liquid storage tank
that is principally above ground.
Damage of any origin sustained by a structure whereby the
cost of restoring the structure to its before damaged condition would
equal or exceed 50% of the market value of the structure before the
damage occurred.
Any reconstruction, rehabilitation, addition or other improvement
of a structure, the cost of which equals or exceeds 50% of the market
value of the structure before the "start of construction" of the improvement.
This term includes structures which have incurred substantial damage,
regardless of the actual repair work performed. The term does not,
however, include either:
Any project for improvement of a structure to correct existing
violations of state or local health, sanitary or safety code specifications
which have been identified by the local Code Enforcement Officer and
which are the minimum necessary to assure safe living conditions;
or
Any alteration of an historic structure, provided that the alteration
will not preclude the structure's continued designation as an
historic structure.
A grant of relief from the requirements of this chapter which
permits construction in a manner that would otherwise be prohibited
by this chapter.
The failure of a structure or other development to be fully
compliant with this chapter. A new or substantially improved structure
or other development without the elevation certificate, other certifications,
or other evidence of compliance required in 44 CFR § 60.3(b)(5),
(c)(4), (c)(10), (e)(2), (e)(4), or (e)(5) is presumed to be in violation
until such time as that documentation is provided.
This chapter shall apply to all areas of special flood hazards
within the jurisdiction of the Borough of Park Ridge, Bergen County,
New Jersey.
A.
The areas of special flood hazard for the Borough of Park Ridge,
Community No. 340063, are identified and defined on the following
documents prepared by the Federal Emergency Management Agency:
(1)
A scientific and engineering report "Flood Insurance Study (FIS),
Bergen County, New Jersey (All Jurisdictions)" dated August 28, 2019.
(2)
Flood Insurance Rate Map for Bergen County, New Jersey (All Jurisdictions)
as shown on Index and panels 34003C0087J, 34003C0091H, 34003C0092H,
34003C0093H and 34003C0094H, whose effective date is August 28, 2019.
B.
The above documents are hereby adopted and declared to be a part
of this chapter. The Flood Insurance Study and maps are on file in
the office of the Borough Clerk, 55 Park Avenue, Park Ridge, New Jersey.
No structure or land shall hereafter be constructed, relocated
to, extended, converted or altered without full compliance with the
terms of this chapter and other applicable regulations. Violation
of the provisions of this chapter by failure to comply with any of
its requirements (including violations of conditions and safeguards
established in connection with conditions) shall constitute a misdemeanor.
Any person who violates this chapter or fails to comply with any of
its requirements shall, upon conviction thereof, be fined not more
than $500 or imprisoned for not more than 90 days, or both, for each
violation, and, in addition, shall pay all costs and expenses involved
in the case. Nothing herein contained shall prevent the Borough of
Park Ridge from taking such other lawful action as is necessary to
prevent or remedy any violation.
This chapter is not intended to repeal, abrogate or impair any
existing easements, covenants or deed restrictions. However, where
this chapter and other chapter, easement, covenant or deed restriction
conflict or overlap, whichever imposes the more stringent restrictions
shall prevail.
In the interpretation and application of this chapter, all provisions
shall be:
A.
The degree of flood protection required by this chapter is considered
reasonable for regulatory purposes and is based on scientific and
engineering considerations. Larger floods can and will occur on rare
occasions. Flood heights may be increased by man-made or natural causes.
This chapter does not imply that land outside the area of special
flood hazards or uses permitted within such areas will be free from
flooding or flood damages.
B.
This chapter shall not create liability on the part of the Borough
of Park Ridge, any officer or employee thereof or the Federal Insurance
Administration, for any flood damages that result from reliance on
this chapter or any administrative decision lawfully made thereunder.
A.
A development permit shall be obtained before construction or development begins, including placement of manufactured homes, within any area of special flood hazard established in § 61-7. Application for a development permit shall be made on forms furnished by the Construction Code Office and may include, but not be limited to, plans in duplicate drawn to scale, showing the nature, location, dimensions and elevations of the area in question; existing or proposed structures, fill, storage of materials and drainage facilities; and the location of the foregoing.
B.
Specifically, the following information is required:
(1)
Elevation in relation to mean sea level, of the lowest floor (including
basement) of all structures.
(2)
Elevation in relation to mean sea level to which any structure has
been floodproofed.
(3)
Certification by a registered professional engineer or architect that the floodproofing methods for any nonresidential structure meet the flood proofing criteria in § 61-17B. And,
(4)
Description of the extent to which any watercourse will be altered
or relocated as a result of proposed development.
The Construction Code Officer is hereby appointed to administer
and implement this chapter by granting or denying development permit
applications in accordance with its provisions.
Duties of the Construction Code Officer shall include, but not
be limited to:
A.
Permit review. He shall:
(1)
Review all development permits to determine that the permit requirements
of this chapter have been satisfied.
(2)
Review all development permits to determine that all necessary permits
have been obtained from those federal, state or local governmental
agencies from which prior approval is required.
B.
When base flood elevation and floodway data has not been provided in accordance with § 61-7, Basis for establishing the areas of special flood hazard, the Construction Code Officer shall obtain, review and reasonably utilize any base flood elevation and floodway data available from a Federal, State or other source, in order to administer § 61-17A, specific standards, residential construction, and § 61-17B, specific standards, nonresidential construction.
C.
Information to be obtained and maintained. He shall:
(1)
Obtain and record the actual elevation (in relation to mean sea level)
of the lowest floor (including basement) of all new or substantially
improved structures, and whether or not the structure contains a basement.
(3)
Maintain for public inspection all records pertaining to the provisions
of this chapter.
D.
Alteration of watercourses.
(1)
Notify adjacent communities and the New Jersey Department of Environmental
Protection, Bureau of Flood Control and the Land Use Regulation Program
prior to any alteration or relocation of a watercourse, and submit
evidence of such notification to the Federal Insurance Administration.
(2)
Require that maintenance is provided within the altered or relocated
portion of said watercourse so that the flood-carrying capacity is
not diminished.
E.
Substantial damage review.
(1)
After an event resulting in building damages, assess the damage to
structures due to flood and nonflood causes.
(2)
Record and maintain the flood and nonflood damage of substantial
damage structures and provide a letter of Substantial Damage Determination
to the owner and the New Jersey Department of Environmental Protection,
Bureau of Flood Control.
F.
Interpretation of FIRM boundaries. Make interpretations, where needed, as to the exact location of the boundaries of the areas of special flood hazard (for example, where there appears to be a conflict between a mapped boundary and actual field conditions). The person contesting the location of the boundary shall be given a reasonable opportunity to appeal the interpretation as provided in § 61-15.
A.
Appeal Board.
(1)
The Planning Board, as established by the Borough of Park Ridge,
shall hear and decide appeals and requests for variances from the
requirements of this chapter.
(2)
The Planning Board shall hear and decide appeals when it is alleged
that there is an error in any requirement, decision or determination
made by the Construction Code Officer in the enforcement or administration
of this chapter.
(3)
Those aggrieved by the decision of the Planning Board, or any taxpayer,
may appeal such decision to the Superior Court of the State of New
Jersey.
(4)
In passing upon such applications, the Planning Board shall consider
all technical evaluations, all relevant factors, standards specified
in other sections of this chapter and;
(a)
The danger that materials may be swept onto other lands to the
injury of others.
(b)
The danger to life and property due to flooding or erosion damage.
(c)
The susceptibility of the proposed facility and its contents
to flood damage and the effect of such damage on the individual owner.
(d)
The importance of the services provided by the proposed facility
to the community.
(e)
The necessity to the facility of a waterfront location, where
applicable.
(f)
The availability of alternative locations for the proposed use
which are not subject to flooding or erosion damage.
(g)
The compatibility of the proposed use with existing and anticipated
development.
(h)
The relationship of the proposed use to the comprehensive plan
and floodplain management program of that area.
(i)
The safety of access to the property in times of flood for ordinary
and emergency vehicles.
(j)
The expected heights, velocity, duration, rate of rise and sediment
transport of the flood waters and the effects of wave action, if applicable,
expected at the site. And,
(k)
The costs of providing governmental services during and after
flood conditions, including maintenance and repair of public utilities
and facilities, such as sewer, gas, electrical and water systems,
and streets and bridges.
(5)
Upon consideration of the factors of Subsection A(4) and the purposes of this chapter, the Planning Board may attach such conditions to the granting of variances as it deems necessary to further the purposes of this chapter.
(6)
The Construction Code Officer shall maintain the records of all appeal
actions, including technical information, and report any variances
to the Federal Insurance Administration upon request.
B.
Conditions for variances.
(1)
Generally, variances may be issued for new construction and substantial improvements to be erected on a lot of 1/2 acre or less in size contiguous to and surrounded by lots with existing structures constructed below the base flood level, providing that items in Subsection A(4)(a) through (k) have been fully considered. As the lot size increases beyond the 1/2 acre, the technical justification required for issuing the variance increases.
(2)
Variances may be issued for the repair of rehabilitation of historic
structures upon a determination that the proposed repair of rehabilitation
will not preclude the structure's continued designation as a
historic structure and the variance is the minimum necessary to preserve
the historic character and design of the structure.
(3)
Variances shall not be issued within any designated floodway if any
increase in flood levels during the base flood discharge would result.
(4)
Variances shall only be issued upon a determination that the variance
is the minimum necessary, considering the flood hazard, to afford
relief.
(5)
Variances shall only be issued upon:
(a)
A showing of good and sufficient cause;
(b)
A determination that failure to grant the variance would result
in exceptional hardship to the applicant; and
(c)
A determination that the granting of a variance will not result in increased flood heights, additional threats to public safety, extraordinary public expense, create nuisances, cause fraud on or victimization of the public as identified in Subsection A(4) or conflict with existing local laws or ordinances.
(6)
Any applicant to whom a variance is granted shall be given written
notice that the structure will be permitted to be built with a lowest
floor elevation below the base flood elevation and that the cost of
flood insurance will be commensurate with the increased risk resulting
from the reduced lowest floor elevation.
In all areas of special flood hazards, compliance with the applicable
requirements of the Uniform Construction Code (N.J.A.C. 5:23) and
the following standards, whichever is more respective, is 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 to be placed or substantially improved 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
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. And,
(4)
For all new construction and substantial improvements the electrical,
heating, ventilation, 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 proposals.
(1)
All subdivision proposals and other proposed new development shall
be consistent with the need to minimize flood damage;
(2)
All subdivision proposals and other proposed new development 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 and other proposed new development shall
have adequate drainage provided to reduce exposure to flood damage;
and
(4)
Base flood elevation data shall be provided for subdivision proposals
and other proposed new development which contain at least 50 lots
or five acres (whichever is less).
E.
Enclosure openings. All new construction and substantial improvements
having fully enclosed areas below the lowest floor that 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 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 in at least two exterior walls of each
enclosed area, 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.
In all areas of special flood hazards where base flood elevation data have been provided as set forth in § 61-7, Basis for establishing the areas of special flood hazard, or in § 61-14B, Use of other base flood data, the following standards are required:
A.
Residential construction.
(1)
New construction and substantial improvement of any residential structure
located in an A or AE Zone shall have the lowest floor, including
basement, together with the attendant utilities (including all electrical,
heating, ventilating, air-conditioning and other service equipment)
and sanitary facilities, elevated to or above the more restrictive
base flood elevation plus one foot or as required by ASCE/SEI 24-24,
Table 201;
(2)
Require within any AO or AH Zone on the municipality's DFIRM
that all new construction and substantial improvement of any residential
structure shall have the lowest floor, including basement together
with the attendant utilities and sanitary facilities, elevated above
the depth number specified in feet plus one foot, above the highest
adjacent grade (at least three feet if no depth number is specified).
And, require adequate drainage paths around structures on slopes to
guide floodwaters around and away from proposed structures.
B.
Nonresidential construction.
(1)
In an area of special flood hazard, all new construction and substantial
improvement of any commercial, industrial or other nonresidential
structure located in an A or AE Zone shall have the lowest floor,
including basement together with attendant utilities and sanitary
facilities as well as all electrical, heating, ventilating, air-conditioning
and other service equipment: either
(a)
Elevated at or above the more restrictive base flood elevation
plus one foot or as required by ASCE/SEI 24-14, Table 2-1; and
(b)
Require within any AO or AH Zone on the municipality's
DFIRM to elevate above the depth number specified in feet plus one
foot, above the highest adjacent grade (at least three feet if no
depth number is specified). And, require adequate drainage paths around
structures on slopes to guide floodwaters around and away from proposed
structures; or
(c)
Be floodproofed so that below the more restrictive, base flood
elevation plus one foot or as required by ASCE/SEI 24-14, Table 6-1,
the structure is watertight with walls substantially impermeable to
the passage of water;
(d)
Have structural components capable of resisting hydrostatic
and hydrodynamic loads and effects of buoyancy; and,
(e)
Be certified by a registered professional engineer or 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 § 61-14C(2).
B.
All manufactured homes to be placed or substantially improved within
an area of special flood hazard shall:
(1)
Be consistent with the need to minimize flood damage,
(2)
Be constructed to minimize flood damage,
(3)
Have adequate drainage provided to reduce exposure to flood damage,
(4)
Be elevated on a permanent foundation such that the top of the lowest
floor is at or above the more restrictive base flood elevation plus
one foot or as required by ASCE/SEI 24-14, Table 2-1 and,
(5)
The manufactured home chassis is supported by reinforced piers or
other foundation elements of at least equivalent strength that are
no less than 36 inches in height above grade and be securely anchored
to an adequately anchored foundation system to resist floatation,
collapse, and lateral movement.
Located within areas of special flood hazard established in § 61-7 are areas designated as floodways. Since the floodway is an extremely hazardous area due to the velocity of flood waters which carry debris, potential projectiles and erosion potential, the following provisions apply:
A.
Prohibit encroachments, including fill, new construction, substantial
improvements, and other development unless a technical evaluation
demonstrates that encroachment 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 must comply with all applicable flood hazard reduction provisions of this chapter.
C.
In all areas of special flood hazard in which base flood elevation
data has been provided and no floodway has been designated, the accumulative
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.
A.
If any section, subsection, paragraph, sentence, clause, or phrase
of this chapter shall be declared invalid for any reason whatsoever,
such a decision shall not affect the remaining portions of the chapter,
which shall remain in full force and effect, and for this purpose
the provisions of this chapter are hereby declared to be severable.
