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, television cable, telephone, and sewer lines,
streets and bridges located in the floodplain;
F. Help maintain a stable tax base by providing for the sound use and
development of flood-prone areas in such a manner as to minimize future
flood blight areas; and
G. Ensure that potential buyers are notified that property is in a flood
area.
In order to accomplish its purposes, this chapter uses the following
methods:
A. Restrict or prohibit uses that are dangerous to health, safety or
property, in times of flood, or cause excessive increases 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 flood damage; and
E. Prevent or regulate the construction of flood barriers which will
unnaturally divert floodwaters or which may increase flood hazards
to other lands.
Unless specifically defined below, words or phrases used in
this chapter shall be interpreted to give them the meaning they have
in common usage and to give this chapter its most reasonable application.
ALLUVIAL FAN FLOODING
Flooding occurring on the surface of an alluvial fan or similar
landform which originates at the apex and is characterized by high-velocity
flows; active processes of erosion, sediment transport, and deposition;
and unpredictable flow paths.
APEX
A point on an alluvial fan or similar landform below which
the flow path of the major stream that formed the fan becomes unpredictable
and alluvial fan flooding can occur.
APPEAL
A request for a review of the Floodplain Manager'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 chance or greater annual
chance of flooding to an average depth of one foot 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. The
area may be designated as Zone A on the Flood Hazard Boundary Map
(FHBM). After detailed rate-making has been completed in preparation
for publication of the FIRM, Zone A usually is refined into Zone A,
AE, AH, AO, A1-A99, VO, V1-V30, VE or V.
BASE FLOOD
The flood having a one-percent chance of being equaled or
exceeded in any given year.
BASEMENT
Any area of the building having its floor subgrade (below
ground level) on all sides.
CRITICAL FEATURE
An integral and readily identifiable part of a flood protection
system, without which the flood protection provided by the entire
system would be compromised.
DEVELOPMENT
Any man-made change in improved and 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.
ELEVATED BUILDING
A nonbasement building:
A.
Built, in the case of a building in Zones A1-A30, AE, A, A99,
AO, AH, B, C, X, and D, to have the top of the elevated floor, or
in the case of building in Zone V1-V30, 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
B.
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 the case of Zones A1-A30, AE, A, A99, AO, AH, B, C, X, and
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. In the case of
Zone 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 if the breakaway
walls meet the standards of Section 60.3(e)(5) of the National Flood
Insurance Program Regulations.
EXISTING CONSTRUCTION
For the purpose of determining rates, structures for which
the start of construction commenced before the effective date of the
FIRM or before January 1, 1975, for FIRMs effective before that date.
"Existing construction" may also be referred to as "existing structures."
EXISTING MANUFACTURED HOME PARK OR SUBDIVISION
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.
EXPANSION TO AN EXISTING MANUFACTURED HOME PARK OR SUBDIVISION
The preparation of additional sites by the construction of
facilities for servicing the lots on which the manufactured homes
are to be affixed (including the installation of utilities, the construction
of streets, and either final site grading or the pouring of concrete
pads).
FLOOD HAZARD BOUNDARY MAP (FHBM)
An official map of a community on which the Federal Emergency
Management Agency has delineated the boundaries of the flood, mud
slide (i.e., mud flow) related erosion areas having special hazards
have been designated as Zones A, M, and/or E.
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 hazards
and the risk-premium zones applicable to the community.
FLOOD INSURANCE STUDY
The official report provided by the Federal Emergency Management
Agency. The report contains flood profiles, water surface elevation
of the base flood, as well as the Flood Boundary-Floodway Map.
FLOOD or FLOODING
A general and temporary condition of partial or complete
inundation of normally dry land areas from:
A.
The overflow of inland or tidal waters; or
B.
The unusual and rapid accumulation or runoff of surface waters
from any source.
FLOODPLAIN MANAGEMENT
The operation of an overall program of corrective and preventive
measures for reducing flood damage, including but not limited to emergency
preparedness plans, flood control works and floodplain management
regulations.
FLOODPLAIN MANAGEMENT REGULATIONS
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.
FLOODPLAIN MANAGER
That person so designated by the governing body of the City
of Española. If this person is an elected official, he may
designate to another person some or all of the duties of the office
of Floodplain Manager. The Floodplain Manager shall be a Certified
Floodplain Manager (CFM) by the New Mexico Floodplain Managers Association
(NMFMA), or shall obtain such certification within 12 months of employment
by the City of Española.
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.
FLOOD PROTECTION SYSTEM
Those physical structural works for which funds have been
authorized, appropriated, and expended and which have been constructed
specifically to modify flooding in order to reduce the extent of the
area with a community subject to a special flood hazard and the extent
of the depths of associated flooding. Such a system typically includes
hurricane tidal barriers, dams, reservoirs, levees or dikes. These
specialized flood-modifying works are those constructed in conformance
with sound engineering standards.
FLOODWAY (REGULATORY FLOODWAY)
The channel of a river or other watercourses 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.
FUNCTIONALLY DEPENDENT USE
A use which cannot perform its intended purpose unless it
is located or carried out in close proximity to water. The term includes
only docking facilities, port facilities that are necessary for the
loading and unloading of cargo or passengers, and ship building and
ship repair facilities, but does not include long-term storage or
related manufacturing 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)
By the Secretary of the Interior directly in states without
approved programs.
LEVEE
A man-made structure, usually an earthen embankment, designed
and constructed in accordance with sound engineering practices to
contain, control, or divert the flow of water so as to provide protection
from temporary flooding.
LEVEE SYSTEM
A flood protection system which consists of a levee, or levees,
and associated structures, such as closure and drainage devices, which
are constructed and operated in accordance with sound engineering
practices.
LOWEST FLOOR
The lowest floor of the lowest enclosed area (including basement).
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 requirement of Section 60.3
of the National Flood Insurance Program Regulations.
MANUFACTURED HOME
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 connected to the required utilities.
MEAN SEA LEVEL
For purposes of the National Flood Insurance Program, the
North American Vertical Datum (NAVD) of 1988 or other datum to which
base flood elevations shown on a community's Flood Insurance
Rate Map are referenced.
NEW CONSTRUCTION
For the purpose of determining insurance rates, structures
for which the start of construction commenced on or after the effective
date of an initial FIRM or after December 31, 1974, whichever is later,
and includes any subsequent improvements to such structures. For floodplain
management purposes, "new construction" means structures for which
the start of construction commenced on or after the effective date
of a floodplain management regulation adopted by a community and includes
any subsequent improvements to such structures.
NEW MANUFACTURED HOME PARK OR SUBDIVISION
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 on or after the effective date
of floodplain management regulations adopted by a community.
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.
Designed primarily not for use as a permanent dwelling but as
temporary living quarters for recreational, camping, travel, or seasonal
use.
START OF CONSTRUCTION
For other than new construction or substantial improvements
under the Coastal Barrier Resources Act (Pub.L. 97-348), includes
substantial improvement and means the date the building permit was
issued, provided the actual start of construction, repair, reconstruction,
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 slab
or footings, the installation of piles, the construction of columns
or any work beyond the state 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 basement, footings, 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.
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 repair, rehabilitation, addition, reconstruction, 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 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 or to comply with existing 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 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 to a person from the requirements of this chapter when specific enforcement would result in unnecessary hardship. A variance, therefore, permits construction or development in a manner otherwise prohibited by this chapter. (For full requirements see §
200-8 below, and Section 60.6 of the National Flood Insurance Program Regulations.)
VIOLATION
The failure of a structure or other development to be fully
compliant with the community's floodplain management regulations.
A structure or other development without the elevation certificate,
other certifications, or other evidence of compliance required in
Section 60.3(b)(5), (c)(4), (c)(10), (d)(3), (e)(2), (e)(4), or (e)(5)
of the National Flood Insurance Program Regulations is presumed to
be in violation until such time as that documentation is provided.
WATER SURFACE ELEVATION
The height, in relation to the North American Vertical Datum
(NAVD) of 1988 (or other datum, where specified), of floods of various
magnitudes and frequencies in the floodplains of coastal or riverine
areas.
Located within the areas of special flood hazard established in §
200-5B are areas designated as areas of shallow flooding. These areas have special flood hazards associated with base flood depths of one foot to three feet where a clearly defined channel does not exist and where the path of flooding is unpredictable and where velocity flow may be evident. Such flooding is characterized by ponding or sheet flow; therefore, the following provisions apply:
A. All new construction and substantial improvements of residential
structures shall have the lowest floor (including basement) elevated
above the highest adjacent grade at least as high as the depth number
specified in feet on the community's FIRM (at least two feet
if no depth number is specified).
B. All 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 the depth number specified in feet
on the community's FIRM (at least two feet if no depth number
is specified); and
(2) Together with attendant utility and sanitary facilities, be designed
so that below the base flood level the structure is watertight with
walls substantially impermeable to the passage of water and with structural
components having the capability of resisting hydrostatic and the
hydrodynamic loads of effects of buoyancy.
C. A licensed professional engineer or architect shall submit a certification to the Floodplain Manager that the standards of this section, as proposed in §
200-9B are satisfied.
D. Within Zone AH or AO, adequate drainage paths around structures on
slopes will be required to guide floodwaters around and away from
proposed structures.
Located within areas of special flood hazard established in §
200-5B 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 shall apply:
A. Encroachments are prohibited, including fill, new construction, substantial
improvements and other development within the adopted regulatory floodway,
unless it has been demonstrated through hydrologic and hydraulic analyses
performed in accordance with standard engineering practice that the
proposed encroachment would not result in any increase in flood levels
within the community during the occurrence of the base flood discharge.
B. If Subsection
A above is satisfied, all new construction and substantial improvements shall comply with all applicable flood hazard reduction provisions of §
200-9. Under the provisions of 44 CFR Chapter I, Section 65.12, of the National Flood Insurance Regulations, a community may permit encroachments within the adopted regulatory floodway that would result in an increase in base flood elevations, provided that the community first applies for a conditional FIRM and floodway revision through FEMA.
The provisions of this chapter shall be enforced by the current
certified Floodplain Manager. Such citations shall be heard by the
City of Española Municipal Court. No structure or land shall
hereafter be constructed, located, 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 less than $50 nor more than $1,000 or imprisoned for not more
than 90 days, or both, for each violation, and a separate violation
shall be deemed committed on each day during or on which a violation
occurs or continues; in addition, such person shall pay all costs
and expenses involved in the prosecution of the case. Nothing herein
contained shall prevent the City of Española from taking such
other lawful action as is necessary to prevent or remedy any violation.