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(A) All new and replacement water supply and sanitary sewage systems shall be designed to minimize or eliminate infiltration of flood waters into the system and discharge from systems into flood waters.
(B) All final subdivision plans will provide the elevation of proposed structure(s) and pads. If the site is filled above the base flood, the final pad elevation shall be certified by a registered professional engineer or surveyor and provided to the floodplain administrator.
(C) On-site waste disposal systems shall have public utilities and facilities such as sewer, gas, electrical and water systems located and constructed to minimize flood damage.
(D) All subdivisions shall locate and construct public utilities and facilities such as sewer, gas, electrical, and water systems to minimize flood damage.
(E) All subdivision proposals shall provide adequate drainage to reduce exposure to flood hazards.
(`64 Code, Sec. 35-22) (Ord. No. 2426, 2640)
(A) All preliminary subdivision proposals, including proposals for manufactured home parks and subdivisions, greater than 50 lots or five acres, whichever is the lesser, shall identify the flood hazard area and the elevation of the base flood.
(B) All final subdivision plans will provide the elevation of proposed structure(s) and pads. If the site is filled above the base flood, the final pad elevation shall be certified by a registered professional engineer or surveyor and provided as part of an application for a Letter of Map Revision based on Fill (LOMR-F) to the floodplain administrator.
(C) All subdivisions shall be designed to minimize flood damage.
(D) All subdivisions shall locate and construct public utilities and facilities such as sewer, gas, electrical and water systems to minimize flood damage.
(E) All subdivisions shall provide adequate drainage to reduce exposure to flood hazards.
(`64 Code, Sec. 35-23) (Ord. No. 2426, 2640, 2989)
(A) All manufactured homes that are placed or substantially improved, on sites located:
(1) Outside of a manufactured home park or subdivision;
(2) In a new manufactured home park or subdivision;
(3) In an expansion to an existing manufactured home park or subdivision; or
(4) In an existing manufactured home park or subdivision upon which a manufactured home has incurred “substantial damage” as a result of a flood shall:
(a) Within Zones A1-30, AH and AE on the community’s Flood Insurance Rate Map, 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 fastened to an adequately anchored foundation system to resist flotation, collapse, and lateral movement.
(b) Within Zones V1-30, V and VE on the community’s Flood Insurance Rate Map, meet the requirements of Section 18-39.
(B) All manufactured homes to be placed or substantially improved on sites in an existing manufactured home park or subdivision within Zones A1-30, AH, AE, V1-30, V and VE on the community’s Flood Insurance Rate Map that are not subject to the provisions of section 18-37.1(A) will be securely fastened to an adequately anchored foundation system to resist flotation, collapse, and lateral movement, and be elevated so that either the:
(1) Lowest floor of the manufactured home is at or above the base flood elevation; or
(2) Manufactured home chassis is supported by reinforced pies or other foundation elements of at least equivalent strength that are not less than 36 inches in height above ground.
(C) Upon the completion of the structure, the elevation of the lowest floor including basement shall be certified by a registered civil engineer or licensed land surveyor, and verified by the community building inspector to be properly elevated. Such certification and verification shall be provided to the floodplain administrator.
(Ord. No. 2783)
(A) All recreational vehicles placed in Zones A1-30, AH, AE, V1-30 and VE will either:
(1) Be on the site for fewer than 180 consecutive days; or
(2) Be fully licensed and ready for highway use. A recreational vehicle is ready for highway uses 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; or
(Ord. No. 2783)
(A) Located within areas of special flood hazard are areas designated as floodways.
(B) Until a regulatory floodway is adopted, no new construction, substantial development, or other development (including fill) shall be permitted within Zones A1-30 and AE, unless it is demonstrated that the cumulative effect of the proposed development, when combined with all other development, will not increase the water surface elevation of the base flood more than one foot at any point within the city.
(C) Because the floodway is an extremely hazardous area due to the velocity of flood waters that carry debris, potential projectiles, and erosion potential, the floodplain administrator shall:
(1) Prohibit encroachments, including fill, new construction, substantial improvements, and other development unless certification by a registered professional engineer or architect is provided demonstrating that encroachments shall not result in any increase in flood levels during the occurrence of the base flood discharge.
(2) If the requirements of subsection (1) above are satisfied, ensure that all new construction and substantial improvements shall comply with all other applicable flood hazard reduction provisions.
(`64 Code, Sec. 35-25) (Ord. No. 2426, 2640, 2989)
Within coastal high hazard areas designated on the effective FIRM, the following standards shall apply:
(A) All new construction and substantial improvements/damage shall be elevated on adequately anchored pilings or columns and securely anchored to such pilings or columns so that the lowest horizontal portion of the structural members of the lowest floor (excluding the pilings or columns) is elevated above the base flood level. The pile or column foundation and structure attached thereto shall be anchored to resist floating, collapse, and lateral movement due to the effects of wind and water loads acting simultaneously on all building components. Water loading values used shall be those associated with the base flood. Wind loading values used shall be those required by applicable State or local building standards.
(B) All new construction shall be located on the landward side of the reach of mean high tide.
(C) All new construction and substantial improvements shall have the space below the lowest floor free of obstructions or constructed with breakaway walls. Such temporarily enclosed space shall not be used for human habitation and may be usable solely for parking of vehicles, building access, or storage.
(D) Fill shall not be used for structural support of buildings.
(E) Manmade alteration of sand dunes that would increase potential flood damage is prohibited.
(F) The floodplain administrator shall obtain and maintain the following records:
(1) Certification by a registered engineer or architect that a proposed structure complies with this section; and
(2) The elevation (in relation to mean sea level) of the bottom of the lowest horizontal structural member of the lowest floor (excluding pilings or columns) of all new and substantially improved structures, and whether such structures contain a basement.
(`64 Code, Sec. 35-26) (Ord. No. 2426, 2640, 2989)
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