[Amended 11-13-2001 by Ord. No. 2001-7]
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 public
health, safety, and general welfare of their citizenry.
A.
The flood hazard areas of Springfield Township 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 hazard which increase flood
heights and velocities, and, when inadequately anchored, damage uses
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 article 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:
A.
To protect human life and health;
B.
To minimize expenditure of public money for costly
flood control projects;
C.
To minimize the need for rescue and relief efforts
associated with flooding and generally undertaken at the expense of
the general public;
D.
To minimize prolonged business interruptions;
E.
To minimize damage to public facilities and utilities
such as water and gas mains, electric, telephone and sewer lines,
streets, and bridges located in areas of special flood hazard;
F.
To help maintain a stable tax base by providing for
the use and development of areas of special flood hazard so as to
minimize future flood blight areas.
G.
To insure that potential buyers are notified that
property is in an area of special flood hazard; and
H.
To ensure that those who occupy the areas of special
flood hazard assume responsibility for their actions.
In order to accomplish its purposes, this article
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; and
E.
Preventing or regulating the construction of flood
barriers which will unnaturally divert floodwaters or which may increase
flood hazards in other areas.
Unless specifically defined below, words or
phases used in this article shall be interpreted so as to give them
the meaning they have in common usage and to give this article its
most reasonable application:
Areas subject to inundation by one-percent-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
[Added 10-11-2017 by Ord. No. 2017-05]
A request for a review of the Construction Code Official’s
interpretation of any provision of this article or a request for a
variance.
Areas subject to inundation by one-percent-annual-chance
shallow flooding (usually sheet flow on sloping terrain) where average
depths are between one and three feet.
[Added 10-11-2017 by Ord. No. 2017-05]
A designated AO, AH, or VO zone on the Township’s Flood
Insurance Rate Map [FIRM] with a one-percent or greater annual 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 maybe evident. Such flooding is characterized
by ponding or sheet flow.
Land in the floodplain within a community subject to a one-percent
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.
[Amended 10-11-2017 by Ord. No. 2017-05]
A flood having a one-percent chance of being equaled or exceeded
in any given year.
[Amended 10-11-2017 by Ord. No. 2017-05]
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 one-percent or greater
chance of being equaled or exceeded in any given year.
[Added 10-11-2017 by Ord. No. 2017-05]
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.
[Amended 10-11-2017 by Ord. No. 2017-05]
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,
including storage of equipment or materials located within the area
of special flood hazard.
A nonbasement building (i) 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 (ii) adequately anchored so as not to impair
the structural integrity of the building during a flood 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 flood waters.
[Amended 10-11-2017 by Ord. No. 2017-05]
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 a 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.
[Added 10-11-2017 by Ord. No. 2017-05]
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.
The official report provided in which the Federal Insurance
Administration has provided flood profiles, as well as the Flood Boundary/Floodway
Map 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:
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.
[Added 10-11-2017 by Ord. No. 2017-05]
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 accumulatively increasing the water surface elevation more
than 0.2 foot.
[Amended 10-11-2017 by Ord. No. 2017-05]
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.
[Added 10-11-2017 by Ord. No. 2017-05]
The highest natural elevation of the ground surface prior
to construction next to the proposed or existing walls of a structure.
[Added 10-11-2017 by Ord. No. 2017-05]
Any structure that is:
Listed individually in the National Register
of Historic Places 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 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:
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 non-elevation design requirements of 44 CFR 60.3.[1]
[Amended 10-11-2017 by Ord. No. 2017-05]
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.[2]
A vehicle which is:
Built on a single chassis;
Four hundred 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 temporary living quarters for recreational, camping,
travel, or seasonal use.
(For other than new construction or substantial improvements
under the Coastal Barrier Resources Act) includes substantial improvements
and means the date the building permit was issued, provided 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 piles, 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 affects the external
dimensions of the building.
A walled and roofed building, or a gas or liquid storage
tank, that is principally above ground.[3]
Damage of any origin sustained by a structure whereby the
cost of restoring the structure to its condition before damage would
equal or exceed 50% of the market value of the structure before the
damage occurred..
[Amended 10-11-2017 by Ord. No. 2017-05]
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:
[Amended 10-11-2017 by Ord. No. 2017-05]
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 a historic structure, provided
that the alteration will not preclude the structure's continued designation
as a historic structure.
A grant of relief from the requirements of this article which
permits construction in a manner that would otherwise be prohibited
by this article.
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.
[Added 10-11-2017 by Ord. No. 2017-05]
[1]
Editor's Note: The former definitions of “manufactured
home” and “manufactured home park or manufactured home
subdivision,” which immediately followed this definition, were
deleted 7-14-2004 by Ord. No. 2004-13.
[2]
Editor's Note: The former definition of “new
manufactured home park or subdivision,” which immediately followed
this definition, was deleted 7-14-2004 by Ord. No. 2004-13.
This article shall apply to all areas of special
flood hazards within Springfield Township.
[Amended 10-11-2017 by Ord. No. 2017-05]
A.
The areas
of special flood hazard for the Township of Springfield, Community
No. 340116, are identified and defined on the following documents
prepared by the Federal Emergency Management Agency:
(1)
A
scientific and engineering report “Flood Insurance Study, Burlington
County, New Jersey (All Jurisdictions)” dated December 21, 2017.
(2)
“Flood
Insurance Rate Map for Burlington County, New Jersey (All Jurisdictions)”
as shown on Index and panels 34005C0129F, 34005C0135F, 34005C0141F,
34005C0142F, 34005C0144F, 34005C0160F, 34005C0161F, 34005C0162F, 34005C0163F,
34005C0164F, 34005C0166F, 34005C0168F, 34005C0170F, 34005C0190F, 34005C0277F,
34005C0281F, whose effective date is December 21, 2017.
B.
The above
documents are hereby adopted and declared to be a part of this ordinance.
The Flood Insurance Study and maps are on file at 2159 Jacksonville-Jobstown
Road, Jobstown, New Jersey.
[Amended 10-11-2017 by Ord. No. 2017-05]
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
$2,000 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 Township of
Springfield from taking such other lawful action as is necessary to
prevent or remedy any violation.
This article is not intended to repeal, abrogate,
or impair any existing easements, covenants, or deed restrictions.
However, where this article and another ordinance, easement, covenant,
or deed restriction conflict or overlap, whichever imposes the more
stringent restrictions shall prevail.
In the interpretation and application of this
article, all provisions shall be:
The degree of flood protection required by this
article 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 maybe increased by man-made
or natural causes. This article 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. This article shall not
create liability on the part of the Township, any officer or employee
thereof or the Federal Insurance Administration for any flood damages
that result from reliance on this article or any administrative decision
lawfully made thereunder.
[Amended 10-11-2017 by Ord. No. 2017-05]
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 § 215-61. Application for a development permit shall be made on forms furnished by the Construction Official 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, drainage facilities; and the location of the foregoing. Specifically, the following information is required:
A.
Elevation in relation to mean sea level, of the lowest
floor (including basement) of all structures;
B.
Elevation in relation to mean sea level to which any
structure has been floodproofed;
C.
Certification by a registered professional engineer or architect that the floodproofing methods for any nonresidential structure meet the floodproofing criteria in § 215-70G(2); and
D.
Description of the extent to which any watercourse
will be altered or relocated as a result of proposed development.
The Construction Code Official is hereby designated
to administer and implement this article by granting or denying development
permit applications in accordance with its provisions.
Duties of the Administrative Officer shall include,
but not be limited to:
A.
Permit review.
(1)
Review all development permits to determine that the
permit requirements of this article 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.
Use of other base flood and floodway data. When base flood elevation and floodway data has not been provided in accordance with § 215-61, Basis for establishing areas of special flood hazard, the Construction Code Official 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 § 215-70, Specific standards, Subsections G(1) (residential construction) and G(2) (nonresidential construction).
C.
Information to be obtained and maintained.
(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 article.
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
[Amended 10-11-2017 by Ord. No. 2017-05]
(2)
Require that maintenance is provided within the altered
or relocated portion of said watercourse so the flood-carrying capacity
is not diminished.
E.
Substantial
damage review.
[Added 10-11-2017 by Ord. No. 2017-05[1]]
(1)
After
an event resulting in building damages, assess the damage to structures
due to flood and non-flood causes.
(2)
Record
and maintain the flood and non-flood 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.
[1]
Editor's Note: This ordinance also renumbered former Subsection
E as Subsection F.
F.
Interpretation of FIRM boundaries. Make interpretations, where needed, as to the exact location of the boundaries of the areas of special flood hazards (for example, where there appears to be a conflict between a mapped boundary and actual filed conditions). The person contesting the location of the boundary shall be given a reasonable opportunity to appeal the interpretation as provided in § 215-69.
A.
Appeal board.
(1)
The Zoning Board shall hear and decide appeals and
requests for variances from the requirements of this article.
(2)
The Zoning Board shall hear and decide appeals when
it is alleged there is an error in any requirement, decision, or determination
made by the Construction Code Official in the enforcement or administration
of this article.
(3)
Those aggrieved by a decision of the Zoning Board,
or any taxpayer, may appeal such decision to the Superior Court, as
provided by law.
(4)
In passing upon such applications, the Zoning Board
shall consider all technical evaluations, all relevant factors, standards
specified in other sections of this article, 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 floodwaters 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 said factors and the purposes
of this article, the Zoning Board may attach such conditions to the
granting of variances as it deems necessary to further the purposes
of this article.
(6)
The Construction Code Official 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 Subsection A(4)(a) through (k) has been fully considered. As the lot size increases beyond the 1/2 acre, the technical justification required for issuing the variance increases.
(2)
Variances maybe issued for the repair or rehabilitation
of historic structures upon a determination that the proposed repair
or 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; see 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.
A.
General standards. 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
restrictive, are required.
[Amended 10-11-2017 by Ord. No. 2017-05]
B.
Anchoring.[1]
[Amended 10-11-2017 by Ord. No. 2017-05]
(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.
[1]
Editor's Note: Former Section 22-13.16B(2),
regarding manufactured homes, which immediately followed this subsection,
was deleted 7-14-2004 by Ord. No.
2004-13.
C.
Construction materials and methods.
D.
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.
[Amended 10-11-2017 by Ord. No. 2017-05]
E.
All subdivision proposals and other proposed new development
shall be consistent with the need to minimize flood damage;
[Amended 10-11-2017 by Ord. No. 2017-05]
(1)
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;
(2)
All subdivision proposals and other proposed new development
shall have adequate drainage provided to reduce exposure to flood
damage; and
(3)
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).
F.
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: 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. The bottom of all openings shall be no higher than
one foot above grade. Openings may be equipped with screens, louvers,
or other covering or devices provided that they permit the automatic
entry and exit of floodwaters.
[Amended 10-11-2017 by Ord. No. 2017-05]
G.
Specific standards. In all areas of special flood hazards where base flood elevation data have been provided as set forth in § 215-61, Basis for establishing areas of special flood hazard, or in § 215-68B, Use of other base flood data, the follow in standards are required:
[Amended 10-11-2017 by Ord. No. 2017-05]
(1)
Residential construction.
(a)
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 at or above the base flood elevation
plus one foot or as required by ASCE/SEI 24-14, Table 2-1, whichever
is more restrictive;
(b)
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.
(2)
Nonresidential construction 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 the attendant utilities and sanitary facilities as well
as all electrical, heating, ventilating, air-conditioning and other
service equipment:
(a)
Either:
[1]
Elevated to or above the base flood elevation plus one foot or as
required by ASCE/SEI 24-14, Table 2-1, whichever is more restrictive;
and
[2]
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;
(b)
Or:[2]
[1]
Be floodproofed so that below the base flood level plus one foot
or as required by ASCE/SEI 24-14, Table 6-1, whichever is more restrictive,
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 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 § 215-68C(1).
[2]
Editor's Note: Former Section 22-13.16H, regarding
manufactured homes, which immediately followed this subsection, was
deleted 7-14-2004 by Ord. No. 2004-13.
(3)
Manufactured
homes.
(a)
Manufactured homes shall be anchored in accordance with § 215-70B(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 base flood elevation plus one foot or as
required by ASCE/SEI 24-14, Table 2-1, whichever is more restrictive;
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 flotation, collapse,
and lateral movement.
Located within areas of special flood hazard established in § 215-61 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.
All 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,
are prohibited.
B.
If the previous provision is satisfied, all new construction and substantial flood hazard reduction provisions of § 215-70A through and including G must be satisfied.
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.
