For the purpose of this chapter, the following definitions shall apply unless the context clearly indicates or requires a different meaning.
BASE FLOOD. The flood having a 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 § 151.04.
BUILDING. A structure that is principally above ground and is enclosed by walls and a roof. The term includes prefabricated building. The term also includes recreational vehicles and travel trailers to be installed on a site for more than 180 days.
DEVELOPMENT.
(1) Any human-made change to real estate, including:
(a) Construction, reconstruction, or placement of a building or any addition to a building valued at more than $1,000;
(b) 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 180 days;
(c) Installing utilities, construction of roads, or similar projects;
(d) Construction or erection of levees, walls, fences, bridges or culverts;
(e) Drilling, mining, filling, dredging, grading, excavating, or other nonagricultural alterations of the ground surface;
(f) Storage of materials; or
(g) Any other activity that might change the direction, height, or velocity of flood or surface waters.
(2) DEVELOPMENT does not include maintenance of existing buildings and facilities such as re-roofing; resurfacing roads; or gardening, plowing, and similar agricultural practices that do not involve filling, grading, or construction of levees.
FLOOD. A general and temporary condition of inundation of normally dry land areas from the overflow, the unusual and rapid accumulation, or the runoff of surface waters from any source.
FLOODWAY. That portion of the SFHA required to store and convey the base flood. The FLOODWAY for the SFHAs of the city shall be according to the best data available to the Illinois State Water Survey Floodplain Information Repository.
FPE or FLOOD PROTECTION ELEVATION. The elevation of the base flood plus one foot at any given location in the SFHA.
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, 1979. 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.
(Prior Code, § 151.02) (Ord. 89-9, passed 12-18-1989)