City of Sikeston, MO
Scott County
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Table of Contents
Table of Contents

Section 410.160 General Standards.

[R.O. 2009 §17.44.160]
A. 
In all areas of special flood hazards (Zones A, AE, A1-30, AO, AH), the following provisions are required:
1. 
All new construction, including manufactured homes and 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.
2. 
All new construction and substantial improvements shall be constructed with materials resistant to flood damage.
3. 
All new construction and substantial improvements shall be constructed by methods and practices that minimize flood damages.
4. 
All new construction and substantial improvements shall be constructed with electrical, heating, ventilating, 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.
5. 
All new and replacement water supply systems be designed to minimize or eliminate infiltration of floodwaters into the system.
6. 
New and replacement sanitary sewage systems shall be designed to minimize or eliminate infiltration of floodwaters into the systems and discharges from the systems into floodwaters. On-site waste disposal systems shall be located to avoid impairment to them or contamination from them during flooding.
7. 
The storage or processing of materials that are in time of flooding, buoyant, flammable, explosive or could be injurious to human, animal or plant life is prohibited. Storage of other material or equipment may be allowed if not subject to major damage by floods and firmly anchored to prevent flotation or if readily removable from the area within the time available after flood warning.
8. 
Until a floodway has been designated, no development, including landfill, may be permitted within Zones A1-30 and AE on the City's FIRM unless the applicant for the land use has demonstrated that the proposed use, when combined with all other existing and reasonably anticipated uses, will not increase the water surface elevation of the 100-year flood more than (1) foot on the average cross section of the reach in which the development or landfill is located as shown on the Flood Insurance Rate Study.

Section 410.170 Standards For Subdivision Proposals.

[R.O. 2009 §17.44.170]
A. 
All subdivision proposals and other proposed new developments, including manufactured home parks or subdivisions, shall be consistent with the need to minimize flood damage.
B. 
All subdivision proposals shall have public utilities and facilities such as sewer, gas, electrical and water systems located and constructed to minimize flood damage.
C. 
All subdivision proposals shall have adequate drainage provided to reduce exposure to flood hazards.
D. 
Base flood elevation data shall be provided for subdivision proposals and other development (including proposals for manufactured home park and subdivisions) which is greater than either five (5) lots or five (5) acres.

Section 410.180 Specific Standards.

[R.O. 2009 §17.44.180]
A. 
In all areas of the special flood hazards where base flood elevation data has been provided as set forth in Article IV, Section 410.140 (Zones A1-30, AE and AH), the following provisions are required:
1. 
Residential construction. New construction or substantial improvement of any residential structure shall have the lowest floor, including basement, elevated one (1) foot above the base flood elevation.
2. 
Non-residential construction. New construction or substantial improvement of any commercial, industrial or other non-residential structure shall either have the lowest floor, including basement, elevated to at least one (1) foot above the level of the base flood elevation or, together with attendant utility and sanitary facilities, be floodproofed so that below such a 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 certify that the standards of this Subsection are satisfied. Such certification shall be provided to the official as set forth in Article IV, Section 410.140(6).
3. 
Require for all new construction and substantial improvement that fully enclosed areas below the lowest floor that are usable solely for parking of 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 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 flowing minimum criteria: A minimum of two (2) openings having a total net area of not less than one (1) square inch for every square foot of enclosed area subject to flooding shall be provided. The bottom of all openings shall be no higher than one (1) foot above grade. Openings may be equipped with screens, louvers, valves or other coverings or devices provided that they permit the automatic entry and exit of floodwaters.

Section 410.190 Manufactured Homes.

[R.O. 2009 §17.44.190]
A. 
All manufactured homes shall be anchored to resist flotation, collapse or lateral movement. Manufactured homes must be anchored in accordance with State and local building codes and FEMA guidelines. In the event that over-the-top frame ties to ground anchors are used, the following specific requirements (or their equivalent) shall be met:
1. 
Over-the-top ties shall be provided at each of the four (4) corners of the manufactured home with two (2) additional ties per side at intermediate locations and manufactured homes less than fifty (50) feet long requiring only one (1) additional tie per side;
2. 
Frame ties shall be provided at each corner of the manufactured home with five (5) additional ties per side at intermediate points and manufactured homes less than fifty (50) feet long requiring only four (4) additional ties per side;
3. 
All components of the anchoring system be capable of carrying a force of four thousand eight hundred (4,800) pounds; and
4. 
Any additions to the manufactured home be similarly anchored.
B. 
Require that all manufactured homes to be placed within Zones A1-30, AH and AE on the community's FIRM be elevated on a permanent foundation such that the lowest floor of the manufactured home is one (1) foot above the base flood elevations and be securely anchored to an adequately anchored foundation system in accordance with the provisions of this Section.
C. 
Require that recreational vehicles placed on sites within all unnumbered and numbered A Zones, AO, AE and AH Zones on the community's FIRM either:
1. 
Be on a site for fewer than one hundred eighty (180) consecutive days, or
2. 
Be fully licensed and ready for highway use,*or
3. 
Meet the permitting, elevation and anchoring requirements for manufactured homes of this Chapter.
*A recreational vehicle is ready for highway use 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.

Section 410.200 Areas of Shallow Flooding (Ao and Ah Zones).

[R.O. 2009 §17.44.200]
A. 
Located within the areas of special flood hazard established in Article III, Section 410.060 are areas designated as shallow flooding. These areas have special flood hazards associated with base flood depths of one (1) to three (3) feet where a clearly defined channel does not exist and where the path of flooding is unpredictable and intermediate; therefore, the following provisions apply:
1. 
Within AO Zones.
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 (2) feet if no depth number is specified).
b. 
All new construction and substantial improvements of non-residential structures shall:
(1) 
Have the lowest floor (including basement) elevated above the highest adjacent grade at least as high as the feet above the depth number specified in feet on the community's FIRM (at least two (2) feet if no number is specified), or
(2) 
Together with attendant utility and sanitary facilities be completely floodproofed to or above the level so that any space below that level 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.
c. 
Adequate drainage paths around structures on slopes shall be required in order to guide floodwaters around and away from proposed structures.
d. 
The anchoring requirements for manufactured homes established in Article V, Section 410.190 shall be required.
2. 
Within AH Zones.
a. 
The specific standards for all areas of special flood hazard where base flood elevation data has been provided shall be required as set forth in Article V, Section 410.180.
b. 
Adequate drainage paths around structures on slopes shall be required in order to guide floodwaters around and away from proposed structures.