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 §
72-6.
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 Town of Lenox 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 Town of Lenox for all fees and other costs in relation
to the application. The applicant must also provide all data, analyses
and mapping and reimburse the Town of Lenox 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 §
72-6, 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 demonstrates
through hydrologic and hydraulic analyses performed in accordance
with standard engineering practice that such an encroachment shall
not result in any increase in flood levels during occurrence of the
base flood; or
(b)
The Town of Lenox 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 Town of Lenox for all fees and other
costs in relation to the application. The applicant must also provide
all data, analyses and mapping and reimburse the Town of Lenox for
all costs related to the final map revisions.
(3) In Zones A1-A30, AE and AH, and also Zone A if base flood elevation
data are available, if any development is found to increase or decrease
base flood elevations, the Town of Lenox shall as soon as practicable,
but not later than six months after the date such information becomes
available, notify FEMA and the New York State Department of Environmental
Conservation of the changes by submitting technical or scientific
data in accordance with standard engineering practice.
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 §
72-6.
A. Anchoring. New structures and substantial improvement to structures
in areas of special flood hazard shall be anchored to prevent flotation,
collapse, or lateral movement during the base flood. This requirement
is in addition to applicable state and local anchoring requirements
for resisting wind forces.
B. Construction materials and methods.
(1) New construction and substantial improvements to structures shall
be constructed with materials and utility equipment resistant to flood
damage.
(2) New construction and substantial improvements to structures shall
be constructed using methods and practices that minimize flood damage.
(3) For enclosed areas below the lowest floor of a structure within Zones
Al-A30, AE, AO or A, new and substantially improved structures shall
have fully enclosed areas below the lowest floor that are useable
solely for parking of vehicles, building access or storage in an area
other than a basement and which are subject to flooding, 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 licensed professional
engineer or architect or meet or exceed the following minimum criteria:
(a)
A minimum of two openings 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;
(b)
The bottom of all such openings no higher than one foot above
the lowest adjacent finished grade; and
(c)
Openings not less than three inches in any direction.
(4) Openings may be equipped with louvers, valves, screens or other coverings
or devices provided they permit the automatic entry and exit of floodwaters.
Enclosed areas subgrade on all sides are considered basements and
are not permitted.
C. Utilities.
(1) New and replacement electrical equipment, heating, ventilating, air
conditioning, plumbing connections, and other service equipment shall
be located at least two feet above the base flood elevation, or at
least three feet above the highest adjacent grade in a Zone A without
an available base flood elevation, or be designed to prevent water
from entering and accumulating within the components during a flood
and to resist hydrostatic and hydrodynamic loads and stresses. Electrical
wiring and outlets, switches, junction boxes and panels shall be elevated
or designed to prevent water from entering and accumulating within
the components unless they conform to the appropriate provisions of
the electrical part of the Building Code of New York State or the
Residential Code of New York State for location of such items in wet
locations;
(2) New and replacement water supply systems shall be designed to minimize
or eliminate infiltration of floodwaters into the system;
(3) New and replacement sanitary sewage systems shall be designed to
minimize or eliminate infiltration of floodwaters. Sanitary sewer
and storm drainage systems for buildings that have openings below
the base flood elevation shall be provided with automatic backflow
valves or other automatic backflow devices that are installed in each
discharge line passing through a building's exterior wall; and
(4) On-site waste disposal systems shall be located to avoid impairment
to them or contamination from them during flooding.
D. Storage tanks.
(1) Underground tanks shall be anchored to prevent flotation, collapse
and lateral movement during conditions of the base flood.
(2) Aboveground tanks shall be:
(a)
Anchored to prevent flotation, collapse or lateral movement
during conditions of the base flood; or
(b)
Installed at or above the base flood elevation as shown on the Flood Insurance Rate Map enumerated in §
72-6 plus two feet.