For the purposes of this chapter, the following definitions are adopted:
BASE FLOOD: The flood having a one percent (1%) probability of being equaled or exceeded in any given year. The base flood is also known as the 100-year flood. The base flood elevation at any location is as defined in section 9-3-4 of this chapter.
BASE FLOOD ELEVATION (BFE): The elevation in relation to mean sea level of the crest of the base flood.
BUILDING: A structure that is principally aboveground and is enclosed by walls and a roof. The term includes a gas or liquid storage tank, a manufactured home or a prefabricated building. The term also includes recreational vehicles and travel trailers to be installed on a site for more than one hundred eighty (180) days.
DEVELOPMENT: Any manmade change to real estate, including, but not necessarily limited to:
A. Demolition, construction, reconstruction, repair, or placement of a building or any structural alteration to a building valued at more than one thousand dollars ($1,000.00);
B. Substantial improvement of an existing building;
C. Installing a manufactured home on a site, preparing a site for a manufactured home or installing a travel trailer on a site for more than one hundred eighty (180) days per year;
D. Installing utilities, construction of roads or similar projects;
E. Construction or erection of levees, dams, walls, fences, bridges or culverts;
F. Drilling, mining, filling, dredging, grading, excavating, paving or other nonagricultural alterations of the ground surface;
G. Storage of materials including the placement of gas and liquid storage tanks; and
H. Channel modifications or any other activity that might change the direction, height or velocity of flood or surface waters.
Development does not include routine maintenance of existing buildings and facilities such as reroofing, resurfacing roads, or gardening, plowing and similar agricultural practices that do not involve filling, grading or construction of levees.
FEMA: Federal emergency management agency.
FPE OR FLOOD PROTECTION ELEVATION: The elevation of the base flood plus one foot (1') of freeboard at any given location in the SFHA.
FLOOD: A general and temporary condition of partial or complete inundation of normally dry land areas from the overflow, the unusual and rapid accumulation of the runoff of surface waters from any source.
FLOOD FRINGE: That portion of the floodplain outside of the regulatory floodway.
FLOOD INSURANCE RATE MAP: A map prepared by the federal emergency management agency that depicts the floodplain or special flood hazard area (SFHA) within the city. This map includes insurance rate zones and may or may not depict floodways and show base flood elevations.
FLOODPLAIN AND SPECIAL FLOOD HAZARD AREA (SFHA): These definitions are synonymous and mean those lands within the jurisdiction of the city that are subject to inundation by the base flood. The floodplains of the city are generally identified as such on the flood insurance rate maps of the county prepared by the federal emergency management agency and dated April 15, 1982. The floodplains of those parts of the unincorporated city that are within the extraterritorial jurisdiction of the city or that may be annexed into the city are generally identified as such on the flood insurance rate map prepared for Madison County by the federal emergency management agency and dated April 15, 1982, (70436). Floodplain also includes those areas of known flooding as identified by the community.
FLOODPROOFING: Any combination of structural or nonstructural additions, changes or adjustments to structures which reduce or eliminate flood damage to real estate, property and their contents.
FLOODPROOFING CERTIFICATE: A form published by the federal emergency management agency that is used to certify that a building has been designed and constructed to be structurally dry and floodproofed to the flood protection elevation.
FLOODWAY: That portion of the SFHA floodplain required to store and convey the base flood. The floodway for the SFHAs of the Mississippi River and Coal Branch Creek, Wood River Creek and Beltline Creek shall be as delineated on the flood boundary and floodway map prepared by the federal emergency management agency and dated May 1, 1984. The floodway for each of the remaining SFHAs of the city shall be according to the best data available to the Illinois state water survey floodplain information repository.
IDOT/DWR: The Illinois department of transportation/division of water resources.
MANUFACTURED HOME: A structure transportable in one or more sections, that is built on a permanent chassis and is designed to be used with or without a permanent foundation when connected to required utilities. Manufactured homes are not permitted to be situated in the city except in areas zoned as R-6. No R-6 areas are located in the floodplain.
NFIP: The national flood insurance program.
REPETITIVE LOSS: Flood related damages sustained by a structure on two (2) separate occasions during a ten (10) year period for which the cost of repairs at the time of each such flood event on the average equals or exceeds twenty five percent (25%) of the market value of the structure before the damage occurred.
RIVERINE SFHA: Any SFHA subject to flooding from a river, creek, intermittent stream, ditch or any other identified channel. This term does not include areas subject to flooding from lakes (except public bodies of water), ponding areas, areas of sheet flow or other areas not subject to overbank flooding.
SFHA OR SPECIAL FLOOD HAZARD AREA: Those lands within the jurisdiction of the city that are subject to inundation by the base flood. The SFHAs of the city are generally identified as such on the flood insurance rate map of the city prepared by the federal emergency management agency and dated May 1, 1984. The SFHAs of those parts of unincorporated Madison County that are within the extraterritorial jurisdiction of the city or that may be annexed into the city are generally identified as such on the flood insurance rate map prepared for Madison County by the federal emergency management agency and dated April 15, 1982, (70436).
SUBSTANTIAL DAMAGE: Damage of any origin sustained by a structure whereby the cost of restoring the structure to its before damage condition would equal or exceed fifty percent (50%) of the market value of the structure before the damage occurred regardless of actual repair work performed. Volunteer labor and materials must be included in this determination.
SUBSTANTIAL IMPROVEMENT: Any repair, reconstruction or improvement of a structure, the cost of which equals or exceeds fifty percent (50%) of the market value of the structure either before the improvement or repair is started or, if the structure has been damaged and is being restored, before the damage occurred. Substantial improvement is considered to occur when the first alteration of any wall, ceiling, floor or other structural part of the building commences, whether or not that alteration affects the external dimensions of the structure. The term does not, however, include either any project for improvement of a structure to comply with existing state or local health, sanitary or safety code specifications which are solely necessary to ensure safe living conditions or any alteration of a structure listed on the National Register of Historic Places or the State Register of Historic Places.
TRAVEL TRAILER OR RECREATIONAL VEHICLE: A vehicle which is: built on a single chassis, four hundred (400) square feet or less in size, designed to be self-propelled or permanently towable by a light duty truck, and designed primarily not for use as a permanent dwelling but as temporary living quarters for recreational, camping, travel, or seasonal use. (Ord. 6675, 9-25-2002)