In all areas of special flood hazards, the following provisions
are required for all new construction and substantial improvements.
(A) All
new construction or substantial improvements shall be designed (or
modified) and adequately anchored to prevent flotation, collapse,
or lateral movement of the structure resulting from hydrodynamic and
hydrostatic loads, including the effects of buoyancy.
(B) All
new construction or substantial improvements shall be constructed
by methods and practices that minimize flood damage.
(C) All
new construction or substantial improvements shall be constructed
with materials resistant to flood damage.
(D) All
new construction or substantial improvements shall be constructed
with electrical, heating, ventilation, plumbing, and air conditioning
equipment and other service facilities that are designed and/or located
so as to prevent water from entering or accumulating within the components
during conditions of flooding.
(E) All
new and replacement water supply systems shall be designed to minimize
or eliminate infiltration of floodwaters into the system.
(F) New
and replacement sanitary sewage systems shall be designed to minimize
or eliminate infiltration of floodwaters into the system and discharge
from the systems into floodwaters.
(G) On-site
waste disposal systems shall be located to avoid impairment to them
or contamination from them during flooding.
(Ordinance 2011-14a adopted 5/14/11)
In all areas of special flood hazards where base flood elevation
data has been provided, as set forth in secs. 150.07, 150.26(H), or
150.42(C), the following provisions are required.
(A) Residential
construction.
New construction and substantial improvement
of any residential structure shall have the lowest floor (including
basement) elevated to or above the base flood elevation. A registered
professional engineer, architect, or land surveyor shall submit a
certification to the Floodplain Administrator that the standard of
this division (A), as proposed in sec. 150.27(B)(1), is satisfied.
(B) Nonresidential
construction.
New construction and substantial improvements
of any commercial, industrial, or other nonresidential structure shall
either have the lowest floor (including basement) elevated to or above
the base flood level or together with attendant utility and sanitary
facilities, be designed so that below the base flood level the structure
is water-tight with walls substantially impermeable to the passage
of water, and with structural components having the capability of
resisting hydrostatic and hydrodynamic loads and effects of buoyancy.
A registered professional engineer or architect shall develop and/or
review structural design, specifications, and plans for the construction,
and shall certify that the design and methods of construction are
in accordance with accepted standards of practice as outlined in this
division (B). A record of such certification which includes the specific
elevation (in relation to mean sea level) to which such structures
are flood-proofed shall be maintained by the Floodplain Administrator.
(C) Enclosures.
New construction and substantial improvements with fully enclosed
areas below the lowest floor that are usable solely for parking or
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 meet or exceed the following minimum criteria.
(1) A minimum of two openings on separate walls having a total net area
of not less than one square inch for every square foot of enclosed
area subject to flooding shall be provided.
(2) The bottom of all openings shall be no higher than one foot above
grade.
(3) Openings may be equipped with screens, louvers, valves, or other
coverings or devices, provided that they permit the automatic entry
and exit of floodwaters.
(D) Manufactured
homes.
(1) Require that all manufactured homes to be placed within Zone A on
a community’s FIRM shall be installed using methods and practices
that minimize flood damage. For the purposes of this requirement,
manufactured homes must be elevated and anchored to resist flotation,
collapse, or lateral movement. Methods of anchoring may include, but
are not 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.
(2) Require that manufactured homes that are placed or substantially
improved within Zones A1-30, AH, and AE on the community’s FIRM
on sites outside of a manufactured home district, in a new manufactured
home district, in an expansion to an existing manufactured home district,
or in an existing manufactured home district on which a manufactured
home has incurred “substantial damage” as a result of
a flood, be elevated on a permanent foundation such that the lowest
floor of the manufactured home is elevated to or above the base flood
elevation and be securely anchored to an adequately anchored foundation
system to resist flotation, collapse, and lateral movement.
(3) Require that manufactured homes be placed or substantially improved
on sites in an existing manufactured home district with Zones A1-30,
AH, and AE on the community’s FIRM that are not subject to the
provisions of this division (D) be elevated so that either:
(a) The lowest floor of the manufactured home is at or above the base
flood elevation; or
(b) 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.
(Ordinance 2011-14a adopted 5/14/11)
(A) All
district proposals, including the placement of manufactured home districts,
shall be consistent with secs. 150.02 through 150.04.
(B) All
proposals for the development of land, including the placement of
manufactured home districts, shall meet floodplain development permit
requirements of secs. 150.08, 150.27, and 150.40 through 150.42.
(C) Base
flood elevation data shall be generated for land proposals and other
proposed development, including the placement of manufactured home
districts which is greater than 50 lots or five acres, whichever is
lesser, if not otherwise provided pursuant to secs. 150.07 or 150.26(H).
(D) All
land proposals, including the placement of manufactured home districts,
shall have adequate drainage provided to reduce exposure to flood
hazards.
(E) All
land proposals, including the placement of manufactured home districts,
shall have public utilities and facilities such as septic, gas, electrical,
and water systems located and constructed to minimize or eliminate
flood damage.
(Ordinance 2011-14a adopted 5/14/11)
(A) 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.
(B) 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.
(C) Any
person who violates this court order or fails to comply with any of
its requirements shall, upon conviction thereof, be fined not more
than $500 for each violation and, in addition, shall pay all costs
and expenses involved in the case.
(D) Nothing
herein contained shall prevent City Council from taking such other
lawful action as is necessary to prevent or remedy any violation.
(Ordinance 2011-14a adopted 5/14/11)