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)