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 § 157.03.
BASE FLOOD ELEVATION (BFE). The elevation in relation to mean sea level of the crest of the base flood.
BUILDING. A walled and roofed building, including a gas or liquid storage tank that is principally above ground, including manufactured homes and prefabricated buildings. The term also includes recreational vehicles and travel trailers installed on a site for more than 180 days per year.
DEVELOPMENT.
(1) Any man-made change to real estate including:
(a) Construction, reconstruction, repair, or placement of a building or any addition to a building;
(b) Substantial improvement of an existing building;
(c) Installation of 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 per year;
(d) Installation of utilities, construction of roads, bridges, culverts, or similar projects;
(e) Demolition of a building, redevelopment of a site, or clearing of land as an adjunct of construction;
(f) Construction or erection of fences, levees, dams, walls, or channel modifications;
(g) Filling, dredging, grading, excavating, paving, drilling, mining, or other alterations of the ground surface;
(h) Storage of materials including the placement of gas and liquid storage tanks, and any other activity that might change the direction, height, or velocity of flood or surface waters;
(i) Or any other activity of man that might change the direction, height, or velocity of flood or surface waters, including extensive vegetation removal.
(2) DEVELOPMENT does not include resurfacing roads, or gardening, plowing, and similar practices that do not involve filling, grading, or construction of levees.
FLOOD. A general and temporary condition of partial or complete inundation of normally dry land areas from overflow of inland or tidal waters, or from the unusual and rapid accumulation or runoff of surface waters from any source.
FLOODPLAIN and SPECIAL FLOOD HAZARD AREA. Those lands within the jurisdiction of the city, the extraterritorial jurisdiction of the city or that may be annexed into the city that are subject to inundation by the base flood. The floodplains of the city are generally identified as such on the countywide flood insurance rate map of the county prepared by the Federal Emergency Management Agency.
FLOODPROOFING. Any combination of structural and nonstructural additions, changes, or adjustments to buildings that reduce or eliminate flood damage to real estate or improved real property, water and sanitary facilities, buildings and their contents.
MANUFACTURED HOME. A building, transportable in one or more sections, which is built on a permanent chassis and is designated for use with or without a permanent foundation when attached to the required utilities. The term MANUFACTURED HOME does not include a recreational vehicle.
NEW CONSTRUCTION. Buildings for which the start of construction commenced or after the effective date of floodplain management regulations adopted by a community and includes any subsequent improvements of such buildings.
STRUCTURE. The results of a man-made change to the land constructed on or below the ground, including a building or any addition to a building; installing utilities, construction of roads or similar projects; construction or erection of levees, walls, fences, bridges or culverts; drilling, mining, filling, dredging, grading, excavating; and the storage of materials.
SUBSTANTIAL DAMAGE. Damage of any origin sustained by a building whereby the cost of restoring the building to its before damage condition would equal or exceed 50% of the market value of the building before the damage occurred regardless of actual repair work performed. Volunteer labor and materials must be included in this determination.
SUBSTANTIAL IMPROVEMENT. Any reconstruction, rehabilitation, addition, or improvement of a building, the cost of which equals or exceeds 50% of the market value of the building before the start of construction of the improvement or repair is started. 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 building. The term does not, however, include either: (1) any project for improvement of a building to comply with existing state or local health, sanitary, or safety code specifications which are solely necessary to assure safe living conditions; or (2) any alteration of a building listed on the National Register of Historic Places or the Illinois Register of Historic Places.
(Ord. 2023-49, passed 9-18-2023)