This district is created for the purpose of protecting against flood damage or destruction to structures which might otherwise be constructed in flood hazard areas. The boundaries of this district shall be the 100-year flood elevation established according to the Illinois State Water Survey's floodplain information repository or a detailed engineering study, if available. (1979 Code § 5-14-1)

Notwithstanding any other provision of this title, no structures shall be erected, converted or structurally altered, and no land and/or structure shall be used in the floodplain district except for one (1) or more of the following uses:

   A.   Agricultural uses, including general farming, grazing, outdoor nurseries, horticulture, viticulture, truck farming and sod farming.

   B.   Open type uses, such as loading and unloading areas, parking lots, storage of motor vehicles for not more than twenty four (24) hour periods, when such uses are permitted in the district in which the floodplain is located.

   C.   Private and public recreational uses such as golf courses, tennis courts, driving ranges, archery ranges, picnic grounds, boat launching ramps, swimming areas, park, wildlife and nature preserves; game farms, fish hatcheries, hiking and horseback riding trails, subject to all other provisions of this title.

   D.   Residential uses such as lawns, gardens, parking areas and play areas.

   E.   In the area above the 100-year floodplain, uses are permitted by the zoning district otherwise established for the lot, subject to the regulations of such district; provided, however, that the elevation of the lowest floor designed or intended for human use or habitation, including basements, shall be at least three feet (3') above the elevation of the nearest point of the 100-year floodplain.

   F.   In the area below the 100-year floodplain, land may be used to supply open space or lot area requirements of a lot partially located above; provided, however, that no building or structure shall be located below the 100-year floodplain. (1979 Code § 5-14-2)

In the floodplain district, a special use may be granted pursuant to the provisions of chapter 15 of this title, in accordance with the following regulations and conditions:

   A.   In the area below the 100-year floodplain, dumping or backfilling with any material in any manner is prohibited unless, through compensating excavation and shaping of the floodplain, the flow and impoundment capacity of the floodplain will be maintained or improved; and unless all applicable State regulations are complied with.

   B.   In the area below the 100-year floodplain, the construction or location of bridges, outdoor play equipment, bleachers, and similar outdoor equipment and appurtenances is prohibited unless such elements would not harmfully interfere with the discharge or stage characteristics of a stream to the flow, or reduction in the impoundment capacity of the floodplain.

   C.   Approval of a special use permit shall be conditional upon compliance with this title and any applicable State regulations. (1979 Code § 5-14-3)