Sec. 4.12

Fully enclosed areas below the regulatory flood protection elevation shall not be designed or used for human habitation, but shall only be used for parking of vehicles, building access, or limited storage of maintenance equipment.

Any structure or use of a structure or premises must be brought into conformity with these provisions when it is changed, repaired, or improved unless one of the following exceptions is established.

Nonresidential buildings located in all AE, AH and A zones with detailed base flood elevations may be flood-proofed in lieu of being elevated provided that all areas of the building components below the elevation corresponding to the base flood elevation plus one foot are water tight...

New construction or substantial improvement of any commercial, industrial, or nonresidential building (or manufactured home) shall have the lowest floor, including basement, elevated to or above the base flood level.

All manufactured homes placed, or substantially improved, on individual lots or parcels, must meet all the requirements for new construction, including the elevation and anchoring requirements.

The bottom of all required openings shall be no higher than one foot above the adjacent grade.

The total net area of all openings must be at least one square inch for each square foot of enclosed area subject to flooding.

Provide a minimum of two openings on different sides of each enclosed area subject to flooding.

All recreational vehicles placed on sites must either be on the site for fewer than 180 consecutive days, be fully licensed and ready for highway use, or meet all the requirements for manufactured homes.

Variances shall be issued only upon (i) a showing of good and sufficient cause, (ii) after the board of zoning appeals has determined that failure to grant the variance would result in exceptional hardship to the applicant, and (iii) after the board of zoning appeals has determined that the granting of such variance will not result in unacceptable or prohibited increases in flood heights, additional threats to public safety, extraordinary public expense; and will not create nuisances, cause fraud or victimization of the public, or conflict with local laws or ordinances.

While the granting of variances generally is limited to a lot size less than one-half acre, deviations from that limitation may occur.

All storm drainage facilities shall be designed to convey the flow of surface waters without damage to persons or property.

All new or replacement sanitary sewer facilities and private package sewage treatment plants shall be designed to minimize or eliminate infiltration of floodwaters into the systems and discharges from the systems into the floodwaters.

Streets and sidewalks should be designed to minimize their potential for increasing and aggravating the levels of flood flow.

Base flood elevation data shall be obtained from other sources or developed using detailed methodologies for subdivision proposals and other proposed development proposals that exceed 50 lots or five acres, whichever is the lesser.

All utilities, such as gas lines, electrical and telephone systems being placed in flood prone areas should be located, elevated (where possible), and constructed to minimize the change of impairment during a flooding occurrence.

All new or replacement water facilities shall be designed to minimize or eliminate infiltration of floodwaters into the system and be located and constructed to minimize or eliminate flood damages.