The Board of Trustees of the Village of Pelham Manor finds that the
potential and/or actual damages from flooding and erosion may be a problem
to the residents of the Village of Pelham Manor and that such damages may
include: destruction or loss of private and public housing, damage to public
facilities, both publicly and privately owned, and injury to and loss of human
life. In order to minimize the threat of such damages and to achieve the purposes
and objectives hereinafter set forth, this chapter is adopted.
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. Regulate 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. Require that uses vulnerable to floods, including facilities
which serve such uses, be protected against flood damage at the time of initial
construction;
C. Control the alteration of natural floodplains, stream
channels, and natural protective barriers which are involved in the accommodation
of floodwaters;
D. Control filling, grading, dredging and other development
which may increase erosion or flood damages;
E. Regulate the construction of flood barriers which will
unnaturally divert floodwaters or which may increase flood hazards to other
lands; and
F. Qualify for and maintain participation in the National
Flood Insurance Program.
The objectives of this chapter are 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, sewer lines, streets and 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. Provide that developers are notified that property is
in an area of special flood hazard; and
H. Ensure that those who occupy the areas of special flood
hazard assume responsibility for their actions.
Unless specifically defined below, words or phrases used in this chapter
shall be interpreted so as to give them the meaning they have in common usage
and to give this chapter its most reasonable application.
APPEAL
A request for a review of the local administrator's interpretation
of any provision of this chapter or a request for a variance.
AREA OF SHALLOW FLOODING
A designated AO, AH or VO Zone on a community's Flood Insurance
Rate Map (FIRM) with a one-percent or greater annual chance of flooding to
an average annual 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.
AREA OF SPECIAL FLOOD HAZARD
The land in the floodplain within a community subject to a one-percent
or greater chance of flooding in any given year. This area may be designated
as Zone A, AE, AH, AO, A1-A30, A99, V, VO, VE, or V1-V30. It is also commonly
referred to as the base floodplain or one-hundred-year floodplain. For purposes
of this chapter, the term "special flood hazard area (SFHA)" is synonymous
in meaning with the phrase "area of special flood hazard."
BASE FLOOD
The flood having a one-percent chance of being equalled or exceeded
in any given year.
BASEMENT
That portion of a building having its floor subgrade (below ground
level) on all sides.
CELLAR
Has the same meaning as "basement."
CRAWL SPACE
An enclosed area beneath the lowest elevated floor, 18 inches or
more in height, which is used to service the underside of the lowest elevated
floor. The elevation of the floor of this enclosed area, which may be of soil,
gravel, concrete or other material, must be equal to or above the lowest adjacent
exterior grade. The enclosed crawl space area shall be properly vented to
allow for the equalization of hydrostatic forces which would be experienced
during periods of flooding.
DEVELOPMENT
Any man-made change to improved or unimproved real estate, including
but not limited to buildings or other structures, mining, dredging, filling,
paving, excavation or drilling operations or storage of equipment or materials.
ELEVATED BUILDING
A.
A nonbasement building:
(1)
Built, in the case of a building in Zones A1-A30, AE, A, A99, AO, AH,
B, C, X, or D, to have the top of the elevated floor, or in the case of a
building in Zones V1-30, VE, or V, to have the bottom of the lowest horizontal
structure member of the elevated floor, elevated above the ground level by
means of pilings, columns (posts and piers), or shear walls parallel to the
flow of the water; and
(2)
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.
B.
In the case of Zones A1-A30, AE, A, A99, AO, AH, B, C, X, or D, 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.
C.
In the case of Zones V1-V30, VE, or V, elevated building also includes
a building otherwise meeting the definition of "elevated building," even though
the lower area is enclosed by means of breakaway walls that meet the federal
standards.
FLOOD or FLOODING
A.
A general and temporary condition of partial or complete inundation
of normally dry land areas from:
(1)
The overflow of inland or tidal waters;
(2)
The unusual and rapid accumulation or runoff of surface waters from
any source.
B.
"Flood" or "flooding" also means the collapse or subsidence of land
along the shore of a lake or other body of water as a result of erosion or
undermining caused by waves or currents of water exceeding anticipated cyclical
levels or suddenly caused by an unusually high water level in a natural body
of water, accompanied by a severe storm, or by an unanticipated force of nature,
such as a flash flood or an abnormal tidal surge, or by some similarly unusual
and unforeseeable event which results in flooding as defined in Subsection
A(1) above.
FLOOD BOUNDARY AND FLOODWAY MAP (FBFM)
An official map of the community published by the Federal Emergency
Management Agency as part of a riverine community's Flood Insurance Study.
The FBFM delineates a regulatory floodway along watercourses studied in detail
in the Flood Insurance Study.
FLOOD ELEVATION STUDY
An examination, evaluation and determination of the flood hazards
and, if appropriate, corresponding water surface elevations, or an examination,
evaluation and determination of flood-related erosion hazards.
FLOOD HAZARD BOUNDARY MAP (FHBM)
An official map of a community, issued by the Federal Emergency Management
Agency, where the boundaries of the areas of special flood hazard have been
designated as Zone A but no flood elevations are provided.
FLOOD INSURANCE RATE MAP (FIRM)
An official map of a community on which the Federal Emergency Management
Agency has delineated both the areas of special flood hazard and the risk
premium zones applicable to the community.
FLOODPROOFING
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.
FLOODWAY
Same meaning as "regulatory floodway."
FUNCTIONALLY DEPENDENT USE
A use which cannot perform its intended purpose unless it is located
or carried out in close proximity to water, such as a docking or port facility
necessary for the loading and unloading of cargo or passengers, shipbuilding,
and ship repair facilities. The term does not include long-term storage, manufacturing,
sales, or service facilities.
HIGHEST ADJACENT GRADE
The highest natural elevation of the ground surface, prior to construction,
next to the proposed walls of a structure.
HISTORIC STRUCTURE
Any structure that is:
A.
Listed individually in the National Register of Historic Places (a listing
maintained by the Department of the Interior) or preliminarily determined
by the Secretary of the Interior as meeting the requirements for individual
listing on the National Register;
B.
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;
C.
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
D.
Individually listed on a local inventory of historic places in communities
with historic preservation programs that have been certified either:
(1)
By an approved state program as determined by the Secretary of the Interior;
or
(2)
Directly by the Secretary of the Interior in states without approved
programs.
LOCAL ADMINISTRATOR
The person appointed by the community to administer and implement
this chapter by granting or denying development permits in accordance with
its provisions. This person is often the Building Inspector, Code Enforcement
Officer, or employee of an engineering department.
LOWEST FLOOR
Lowest floor of the lowest enclosed area (including basement or cellar).
An unfinished or flood-resistant enclosure, usable solely for parking of vehicles,
building access, or storage in an area other than a basement area is not considered
a building's lowest floor; provided that such enclosure is not built
so as to render the structure in violation of the applicable nonelevation
design requirements of this chapter.
MANUFACTURED HOME
A structure, transportable in one or more sections, which is built
on a permanent chassis and designed to be used with or without a permanent
foundation when connected to the required utilities. The term does not include
a recreational vehicle.
MEAN SEA LEVEL
For purposes of the National Flood Insurance Program, the National
Geodetic Vertical Datum (NGVD) of 1929, the North American Vertical Datum
of 1988 (NAVD 88), or other datum, to which base flood elevations shown on
a community's Flood Insurance Rate Map are referenced.
NEW CONSTRUCTION
Structures for which the start of construction commenced on or after
the effective date of a floodplain management regulation adopted by the community
and includes any subsequent improvements to such structure.
RECREATIONAL VEHICLE
A vehicle which is:
A.
Built on a single chassis;
B.
Four hundred square feet or less when measured at the largest horizontal
projections;
C.
Designed to be self-propelled or permanently towable by a light-duty
truck; and
D.
Not designed primarily for use as a permanent dwelling but as temporary
living quarters for recreational, camping, travel or seasonal use.
REGULATORY FLOODWAY
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 a designated height as determined by the Federal Emergency Management Agency in a Flood Insurance Study or by other agencies as provided in §
114-13B of this chapter.
START OF CONSTRUCTION
The date of permit issuance for new construction and substantial
improvements to existing structures, provided that actual start of construction,
repair, reconstruction, rehabilitation, addition placement, or other improvement
is within 180 days after the date of issuance. The actual start of construction
means the first placement of permanent construction of a building (including
a manufactured home) on a site, such as the pouring of a slab or footings,
installation of pilings or construction of columns. Permanent construction
does not include land preparation (such as clearing, excavation, grading,
or filling), or the installation of streets or walkways, or excavation for
a basement, footings, piers or foundations, or the erection of temporary forms,
or the installation of accessory buildings such as garages or sheds not occupied
as dwelling units or not part of the main building. 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.
STRUCTURE
A walled and roofed building, including a gas or liquid storage tank,
that is principally above ground, as well as a manufactured home.
SUBSTANTIAL DAMAGE
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.
SUBSTANTIAL IMPROVEMENT
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. The
term includes structures which have incurred substantial damage, regardless
of the actual repair work performed. The term does not, however, include either:
A.
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 official and which are the minimum
necessary to assure safe living conditions; or
B.
Any alteration of an historic structure, provided that the alteration
will not preclude the structure's continued designation as an historic
structure.
VARIANCE
A grant of relief from the requirements of this chapter which permits
construction or use in a manner that would otherwise be prohibited by this
chapter.
This chapter shall apply to all areas of special flood hazard within
the jurisdiction of the Village of Pelham Manor, Westchester County.
No structure in an area of special flood hazard shall hereafter be constructed, located, extended, converted, or altered and no land shall be excavated or filled without full compliance with the terms of this chapter and any other applicable regulations. Any infraction of the provisions of this chapter by failure to comply with any of its requirements, including infractions of conditions and safeguards established in connection with conditions of the permit, shall constitute a violation. Any person who violates this chapter or fails to comply with any of its requirements shall, upon conviction thereof, be fined no more than $250 or imprisoned for not more than 15 days, or both. Each day of noncompliance shall be considered a separate offense. Nothing herein contained shall prevent the Village of Pelham Manor from taking such other lawful action as necessary to prevent or remedy an infraction. Any structure found not compliant with the requirements of this chapter for which the developer and/or owner has not applied for and received an approved variance under §§
114-19 and
114-20 will be declared noncompliant and notification sent to the Federal Emergency Management Agency.
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. This chapter
shall not create liability on the part of the Village of Pelham Manor, any
officer or employee thereof, or the Federal Emergency Management Agency, for
any flood damages that result from reliance on this chapter or any administrative
decision lawfully made thereunder.
The Board of Trustees is hereby appointed local administrator to administer
and implement this chapter by granting or denying floodplain development permits
in accordance with its provisions.
The applicant shall provide the following information as appropriate.
Additional information may be required on the permit application form.
A. The proposed elevation, in relation to mean sea level,
of the lowest floor (including basement or cellar) of any new or substantially
improved structure to be located in Zones A1-A30, AE or AH, or Zone A if base
flood elevation data are available. Upon completion of the lowest floor, the
permittee shall submit to the local administrator the as-built elevation,
certified by a licensed professional engineer or surveyor.
B. The proposed elevation, in relation to mean sea level,
to which any new or substantially improved nonresidential structure will be
floodproofed. Upon completion of the floodproofed portion of the structure,
the permittee shall submit to the local administrator the as-built floodproofed
elevation, certified by a professional engineer or surveyor.
C. A certificate from a licensed professional engineer or architect that any utility floodproofing will meet the criteria in §
114-15C, Utilities.
D. A certificate from a licensed professional engineer or architect that any nonresidential floodproofed structure will meet the floodproofing criteria in §
114-17, Nonresidential structures.
E. A description of the extent to which any watercourse will be altered or relocated as a result of proposed development. Computations by a licensed professional engineer must be submitted that demonstrate that the altered or relocated segment will provide equal or greater conveyance than the original stream segment. The applicant must submit any maps, computations or other material required by the Federal Emergency Management Agency (FEMA) to revise the documents enumerated in §
114-6, when notified by the local administrator, and must pay any fees or other costs assessed by FEMA for this purpose. The applicant must also provide assurances that the conveyance capacity of the altered or relocated stream segment will be maintained.
F. A technical analysis, by a licensed professional engineer,
if required by the local administrator, which shows whether proposed development
to be located in an area of special flood hazard may result in physical damage
to any other property.
G. In Zone A, when no base flood elevation data are available
from other sources, base flood elevation data shall be provided by the permit
applicant for subdivision proposals and other proposed developments (including
proposals for manufactured home and recreational vehicle parks and subdivisions)
that are greater than either 50 lots or five acres.
Duties of the local administrator shall include, but not be limited
to, the following.
A. Permit application review. The local administrator shall
conduct the following permit application review before issuing a floodplain
development permit:
(1) Review all applications for completeness, particularly with the requirements of §
114-12, Application for a permit, and for compliance with the provisions and standards of this chapter.
(2) Review subdivision and other proposed new development, including manufactured home parks to determine whether proposed building sites will be reasonably safe from flooding. If a proposed building site is located in an area of special flood hazard, all new construction and substantial improvements shall meet the applicable standards of §§
114-14 through
114-18 and, in particular, §
114-14A, Subdivision proposals.
(3) Determine whether any proposed development in an area of special flood hazard may result in physical damage to any other property (e.g., stream bank erosion and increased flood velocities). The local administrator may require the applicant to submit additional technical analyses and data necessary to complete the determination. If the proposed development may result in physical damage to any other property or fails to meet the requirements of §§
114-14 through
114-18, no permit shall be issued. The applicant may revise the application to include measures that mitigate or eliminate the adverse effects and resubmit the application.
(4) Determine that all necessary permits have been received
from those governmental agencies from which approval is required by state
or federal law.
B. Use of other flood data.
(1) When the Federal Emergency Management Agency has designated areas of special flood hazard on the community's Flood Insurance Rate Map (FIRM) but has neither produced water surface elevation data (these areas are designated Zone A or V on the FIRM) nor identified a floodway, the local administrator shall obtain, review and reasonably utilize any base flood elevation and floodway data available from a federal, state or other source, including data developed pursuant to §
114-12G, as criteria for requiring that new construction, substantial improvements or other proposed development meet the requirements of this chapter.
(2) When base flood elevation data are not available, the
local administrator may use flood information from any other authoritative
source, such as historical data, to establish flood elevations within the
areas of special flood hazard, for the purposes of this chapter.
C. Alteration of watercourses.
(1) Notification to adjacent communities and the New York
State Department of Environmental Conservation prior to permitting any alteration
or relocation of a watercourse, and submittal of evidence of such notification
to the Regional Director, Region II, Federal Emergency Management Agency.
(2) Determine that the permit holder has provided for maintenance
within the altered or relocated portion of said watercourse so that the flood-carrying
capacity is not diminished.
D. Construction stage.
(1) In Zones A1-A30, AE and AH, and also Zone A if base flood
elevation data are available, upon placement of the lowest floor or completion
of floodproofing of a new or substantially improved structure, obtain from
the permit holder a certification of the as-built elevation of the lowest
floor or floodproofed elevation, in relation to mean sea level. The certificate
shall be prepared by or under the direct supervision of a licensed land surveyor
or professional engineer and certified by same. For manufactured homes, the
permit holder shall submit the certificate of elevation upon placement of
the structure on the site. A certificate of elevation must also be submitted
for a recreational vehicle if it remains on a site for 180 consecutive days
or longer (unless it is fully licensed and ready for highway use).
(2) Any further work undertaken prior to submission and approval
of the certification shall be at the permit holder's risk. The local
administrator shall review all data submitted. Deficiencies detected shall
be cause to issue a stop-work order for the project unless immediately corrected.
E. Inspections. The local administrator and/or the developer's
engineer or architect shall make periodic inspections at appropriate times
throughout the period of construction in order to monitor compliance with
permit conditions and enable said inspector to certify, if requested, that
the development is in compliance with the requirements of the floodplain development
permit and/or any variance provisions.
F. Stop-work orders.
(1) The local administrator shall issue, or cause to be issued, a stop-work order for any floodplain development found ongoing without a development permit. Disregard of a stop-work order shall subject the violator to the penalties described in §
114-8 of this chapter.
(2) The local administrator shall issue, or cause to be issued, a stop-work order for any floodplain development found noncompliant with the provisions of this chapter and/or the conditions of the development permit. Disregard of a stop-work order shall subject the violator to the penalties described in §
114-8 of this chapter.
G. Certificate of compliance.
(1) In areas of special flood hazard, as determined by documents enumerated in §
114-6, it shall be unlawful to occupy or to permit the use or occupancy of any building or premises, or both, or part thereof hereafter created, erected, changed, converted or wholly or partly altered or enlarged in its use or structure until a certificate of compliance has been issued by the local administrator stating that the building or land conforms to the requirements of this chapter.
(2) A certificate of compliance shall be issued by the local
administrator upon satisfactory completion of all development in areas of
special flood hazard.
(3) Issuance of the certificate shall be based upon the inspections conducted as prescribed in Subsection
E, Inspections, and/or any certified elevations, hydraulic data, floodproofing, anchoring requirements or encroachment analyses which may have been required as a condition of the approved permit.
H. Information to be retained. The local administrator shall
retain and make available for inspection, copies of the following:
(1) Floodplain development permits and certificates of compliance;
(2) Certifications of as-built lowest floor elevations of structures, required pursuant to Subsection
D(1) and
(2), and whether or not the structures contain a basement;
(3) Floodproofing certificates required pursuant to Subsection
D(1), and whether or not the structures contain a basement;
(5) Notices required under §
114-13C, Alteration of watercourses.
The following standards apply to new development, including new and substantially improved structures, in the areas of special flood hazard shown on the Flood Insurance Rate Map designated in §
114-6.
A. Subdivision proposals. The following standards apply
to all new subdivision proposals and other proposed development in areas of
special flood hazard (including proposals for manufactured home and recreational
vehicle parks and subdivisions):
(1) Proposals shall be consistent with the need to minimize
flood damage;
(2) Public utilities and facilities such as sewer, gas, electrical
and water systems shall be located and constructed so as to minimize flood
damage; and
(3) Adequate drainage shall be provided to reduce exposure
to flood damage.
B. Encroachments.
(1) Within Zones A1-A30 and AE, on streams without a regulatory
floodway, no new construction, substantial improvements or other development
(including fill) shall be permitted unless:
(a) The applicant demonstrates that the cumulative effect
of the proposed development, when combined with all other existing and anticipated
development, will not increase the water surface elevation of the base flood
more than one foot at any location; or
(b) The Village of Pelham Manor agrees to apply to the Federal
Emergency Management Agency (FEMA) for a conditional FIRM revision, FEMA approval
is received and the applicant provides all necessary data, analyses and mapping
and reimburses the Village of Pelham Manor for all fees and other costs in
relation to the application. The applicant must also provide all data, analyses
and mapping and reimburse the Village of Pelham Manor for all costs related
to the final map revision.
(2) On streams with a regulatory floodway, as shown on the Flood Boundary and Floodway Map or the Flood Insurance Rate Map adopted in §
114-6, no new construction, substantial improvements or other development in the floodway (including fill) shall be permitted unless:
(a) A technical evaluation by a licensed professional engineer
shows that such an encroachment shall not result in any increase in flood
levels during occurrence of the base flood; or
(b) The Village of Pelham Manor agrees to apply to the Federal
Emergency Management Agency (FEMA) for a conditional FIRM and floodway revision,
FEMA approval is received and the applicant provides all necessary data, analyses
and mapping and reimburses the Village of Pelham Manor for all fees and other
costs in relation to the application. The applicant must also provide all
data, analyses and mapping and reimburse the Village of Pelham Manor for all
costs related to the final map revisions.
The following standards, in addition to the standards in §
114-14A, Subdivision proposals, and §
114-14B, Encroachments, and §
114-15, Standards for all structures, apply to structures located in areas of special flood hazard as indicated.
A. Within Zones A1-A30, AE and AH and also Zone A if base
flood elevation data is available, new construction and substantial improvements
shall have the lowest floor (including basement) elevated to or above two
feet above the base flood level.
B. Within Zone A, when no base flood elevation data is available,
new and substantially improved structures shall have the lowest floor (including
basement) elevated at least three feet above the highest adjacent grade.
C. Within Zone AO, new and substantially improved structures shall have the lowest floor (including basement) elevated above the highest adjacent grade at least as high as two feet above the depth number specified in feet on the community's Flood Insurance Rate Map enumerated in §
114-6 (at least two feet if no depth number is specified).
D. Within Zones AH and AO, adequate drainage paths are required
to guide floodwaters around and away from proposed structures on slopes.
The following standards apply to new and substantially improved commercial, industrial and other nonresidential structures, in addition to the requirements in §
114-14A, Subdivision proposals, and §
114-14B, Encroachments, and §
114-15, Standards for all structures.
A. Within Zones A1-A30, AE and AH, and also Zone A if base
flood elevation data are available, new construction and substantial improvements
of any nonresidential structure, together with attendant utility and sanitary
facilities, shall either:
(1) Have the lowest floor, including basement or cellar,
elevated to or above two feet above the base flood elevation; or
(2) Be floodproofed so that the structure is watertight below
two feet above the base flood level with walls substantially impermeable to
the passage of water. All structural components located below the base flood
level must be capable of resisting hydrostatic and hydrodynamic loads and
the effects of buoyancy.
B. Within Zone AO, new construction and substantial improvements
of nonresidential structures shall:
(1) Have the lowest floor (including basement) elevated above
the highest adjacent grade at least as high as two feet above the depth number
specified in feet on the community's FIRM (at least two feet if no depth
number is specified); or
(2) Together with attendant utility and sanitary facilities, be completely floodproofed to that level to meet the floodproofing standard specified in Subsection
A(2).
C. If the structure is to be floodproofed, a licensed professional engineer or architect shall develop and/or review structural design, specifications, and plans for construction. A floodproofing certificate or other certification shall be provided to the local administrator that certifies the design and methods of construction are in accordance with accepted standards of practice for meeting the provisions of Subsection
A(2), including the specific elevation (in relation to mean sea level) to which the structure is to be floodproofed.
D. Within Zones AH and AO, adequate drainage paths are required
to guide floodwaters around and away from proposed structures on slopes.
E. Within Zone A, when no base flood elevation data are
available, the lowest floor (including basement) shall be elevated at least
three feet above the highest adjacent grade.
The following standards in addition to the standards in §
114-14, General standards, and §
114-15, Standards for all structures, apply, as indicated, in areas of special flood hazard to manufactured homes and to recreational vehicles which are located in areas of special flood hazard.
A. Recreational vehicles.
(1) Recreational vehicles placed on sites within Zones A1-A30,
AE and AH shall either:
(a) Be on site fewer than 180 consecutive days;
(b) Be fully licensed and ready for highway use; or
(c) Meet the requirements for manufactured homes in Subsections
B,
C and
D.
(2) A recreational vehicle is ready for highway use if it
is on its wheels or jacking system, is attached to the site only by quick-disconnect-type
utilities and security devices and has no permanently attached additions.
B. A manufactured home that is placed or substantially improved
in Zones A1-A30, AE and AH shall be elevated on a permanent foundation such
that the lowest floor is elevated to or above the base flood elevation and
is securely anchored to an adequately anchored foundation system to resist
flotation, collapse and lateral movement.
C. Within Zone A, when no base flood elevation data are
available, new and substantially improved manufactured homes shall be elevated
such that 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 are securely anchored to an adequately
anchored foundation system to resist flotation, collapse or lateral movement.
D. Within Zone AO, the floor shall be elevated above the highest adjacent grade at least as high as the depth number specified on the Flood Insurance Rate Map enumerated in §
114-6 (at least two feet if no depth number is specified).