For the pur­pose of this Code, the fol­low­ing def­i­n­i­tions are adopted:

BASE FLOODmeans 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 14–1‑3 of this Code.

BASE FLOOD ELEVATION (BFE)” means the ele­va­tion in rela­tion to mean sea lev­el of the crest of the base flood.

BASEMENT means that por­tion of a build­ing hav­ing its floor sub-grade (below ground lev­el) on all sides.

BUILDINGmeans a walled and roofed struc­ture, includ­ing gas or liq­uid stor­age tank, that is prin­ci­pal­ly above ground, includ­ing man­u­fac­tured homes, pre­fab­ri­cat­ed build­ings and gas or liq­uid stor­age tanks.  The term also includes recre­ation­al vehi­cles and trav­el trail­ers installed on a site for more than one hun­dred eighty (180) days per year.

CRITICAL FACILITY means any facil­i­ty which is crit­i­cal to the health and wel­fare of the pop­u­la­tion and, if flood­ed, would cre­ate an added dimen­sion to the 
dis­as­ter.  Dam­age to these crit­i­cal facil­i­ties can impact the deliv­ery of vital ser­vices, can cause greater dam­age to oth­er sec­tors of the com­mu­ni­ty, or can put spe­cial pop­u­la­tions at risk.

Exam­ples of crit­i­cal facil­i­ties where flood pro­tec­tion should be required include: emer­gency ser­vices facil­i­ties (such as fire and police sta­tions), schools, hos­pi­tals retire­ment homes and senior care facil­i­ties, major roads and bridges, crit­i­cal util­i­ty sites (tele­phone switch­ing sta­tions or elec­tri­cal trans­form­ers, and haz­ardous mate­r­i­al stor­age facil­i­ties (chem­i­cals, petro­chem­i­cals, haz­ardous or tox­ic substances).

 “DEVELOPMENTmeans any man-made change to real estate includ­ing, but not nec­es­sar­i­ly lim­it­ed to:

(A) demo­li­tion, con­struc­tion, recon­struc­tion, repair, place­ment of a build­ing, or any struc­tur­al alter­ation 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 site for more than one hun­dred eighty (180) days per year;

(D) instal­la­tion of util­i­ties, con­struc­tion of roads, bridges, cul­verts or sim­i­lar projects;

(E) con­struc­tion or erec­tion of lev­ees, dams, walls, or fences;

(F) drilling, min­ing, fill­ing, dredg­ing, grad­ing, exca­vat­ing, paving, or oth­er 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; resur­fac­ing roads; or gar­den­ing, plow­ing, and sim­i­lar prac­tices that do not involve fill­ing, grad­ing, or con­struc­tion of levees.

EXISTING MANUFACTURED HOME PARK OR SUBDIVISION means a man­u­fac­tured home park or sub­di­vi­sion for which the con­struc­tion of facil­i­ties for ser­vic­ing the lots on which the man­u­fac­tured homes are to be affixed or build­ings to be con­struct­ed (includ­ing, at a min­i­mum, the instal­la­tion of util­i­ties, the con­struc­tion of streets, and either final site grad­ing or the pour­ing of con­crete pads) is com­plet­ed before the effec­tive date of the flood­plain man­age­ment reg­u­la­tions adopt­ed by a community.

EXPANSION TO AN EXISTING MANUFACTURED HOME PARK OR SUBDIVISION means the prepa­ra­tion of addi­tion­al sites by the con­struc­tion of facil­i­ties for ser­vic­ing the lots on which the man­u­fac­tured homes are to be affixed (includ­ing the instal­la­tion of util­i­ties, the con­struc­tion of streets, and either final site grad­ing or the pour­ing of con­crete pads).

FEMA means Fed­er­al Emer­gency Man­age­ment Agency.

FLOODmeans a gen­er­al and tem­po­rary con­di­tion of par­tial or com­plete inun­da­tion of nor­mal­ly dry land areas from the over­flow, the unusu­al and rapid accu­mu­la­tion, or the runoff of sur­face waters from any source.

FLOOD FRINGE means that por­tion of the flood­plain out­side of the reg­u­la­to­ry floodway.

FLOOD INSURANCE RATE MAP means a map pre­pared by the Fed­er­al Emer­gency Man­age­ment Agency that depicts the flood­plain or spe­cial flood haz­ard area (SFHA) with­in a com­mu­ni­ty.  This map includes insur­ance rate zones and may or may not depict flood­ways and show base flood elevations.

FLOOD INSURANCE STUDY means an exam­i­na­tion, eval­u­a­tion and deter­mi­na­tion of flood haz­ards and, if appro­pri­ate, cor­re­spond­ing water sur­face elevations.

FLOODPLAINANDSPECIAL FLOOD HAZARD AREA” or “SFHAare syn­ony­mous.  Those lands with­in the juris­dic­tion of the Coun­ty that are sub­ject to inun­da­tion by the base flood.  The flood­plains of the Mis­sis­sip­pi Riv­er, Dutch Creek, Clear Creek, and Hutchins Creek are gen­er­al­ly iden­ti­fied on the coun­ty­wide Flood Insur­ance Rate Map of Union Coun­ty pre­pared by the Fed­er­al Emer­gency Man­age­ment Agency dat­ed May 2, 2008.  Flood­plain also includes those areas of known flood­ing as iden­ti­fied by the County.

FLOOD PROOFING means 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.

FLOOD PROOFING CERTIFICATE means 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 flood proofed to the flood pro­tec­tion elevation.

FLOOD PROTECTION ELEVATION” or “FPEmeans the ele­va­tion of the base flood plus one (1) foot of free­board at any giv­en loca­tion in the floodplain.

FLOODWAYmeans that por­tion of the flood­plain required to store and con­vey the base flood.  The flood­way for the flood­plains of Mis­sis­sip­pi Riv­er, Dutch Creek, Clear Creek, and Hutchins Creek shall be as delin­eat­ed on the coun­ty­wide Flood Insur­ance Rate Map of Union Coun­ty pre­pared by FEMA and dat­ed May 2, 2008.  The flood­ways for each of the remain­ing flood­plains of Union Coun­ty shall be accord­ing to the best data avail­able from Fed­er­al, State, or oth­er sources.

FREEBOARD means an incre­ment of ele­va­tion added to the base flood ele­va­tion to pro­vide a fac­tor of safe­ty for uncer­tain­ties in cal­cu­la­tions, future water­shed devel­op­ment, unknown local­ized con­di­tions, wave actions and unpre­dictable effects such as those caused by ice or debris jams.

HISTORIC STRUCTURE means any struc­ture that is:

(A) list­ed indi­vid­u­al­ly in the Nation­al Reg­is­ter of His­toric Places or pre­lim­i­nar­i­ly deter­mined by the Sec­re­tary of the Inte­ri­or as meet­ing the require­ments for indi­vid­ual list­ing on the Nation­al Register.

(B) cer­ti­fied or pre­lim­i­nar­i­ly deter­mined by the Sec­re­tary of the Inte­ri­or as con­tribut­ing to the his­toric dis­trict or a dis­trict pre­lim­i­nar­i­ly deter­mined by the Sec­re­tary to qual­i­fy as a reg­is­tered his­toric district.

(C) Indi­vid­u­al­ly list­ed on the state inven­to­ry of his­toric places by the Illi­nois His­toric Preser­va­tion Agency.

(D) Indi­vid­u­al­ly list­ed on a local inven­to­ry of his­toric places that has been cer­ti­fied by the Illi­nois His­toric Preser­va­tion Agency.

IDNR/OWR means Illi­nois Depart­ment of Nat­ur­al Resources/Office of Water Resources.

LOWEST FLOOR means the low­est floor of the low­est enclosed area (includ­ing base­ment).  An unfin­ished or flood resis­tant enclo­sure, usable sole­ly for park­ing of vehi­cles, build­ing access or stor­age in an area oth­er than a base­ment area is not con­sid­ered a building’s low­est floor.  Pro­vid­ed that such enclo­sure is not built so as to ren­der the struc­ture in vio­la­tion of the applic­a­ble non-ele­­va­­tion design require­ments of Sec­tion 14–1‑7 of this Code.

MANUFACTURED HOME means 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 HOME PARK OR SUBDIVISION means a par­cel (or con­tigu­ous parcels) of land divid­ed into two (2) or more lots for rent or sale.

NEW CONSTRUCTION means struc­tures 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 structures.

NEW MANUFACTURED HOME PARK OR SUBDIVISION means a man­u­fac­tured home park or sub­di­vi­sion for which the con­struc­tion of facil­i­ties for ser­vic­ing the lots on which the man­u­fac­tured homes are to be affixed or build­ings to be con­struct­ed (includ­ing, at a min­i­mum, the instal­la­tion of util­i­ties, the con­struc­tion of streets, and either final site grad­ing or the pour­ing of con­crete pads) is com­plet­ed on or after the effec­tive date of the flood­plain man­age­ment reg­u­la­tions adopt­ed by a community.

NFIP means Nat­ur­al Flood Insur­ance Program.

RECREATIONAL VEHICLE OR TRAVEL TRAILER means a vehi­cle which is:

        (A) built on a sin­gle chassis;

  (B) four hun­dred (400) square feet or less in size;

(C) 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.

REPETITIVE LOSS means flood-relat­ed dam­ages sus­tained by a struc­ture on two sep­a­rate occa­sions dur­ing a ten 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.

SFHA”.  See def­i­n­i­tion of floodplain.

START OF CONSTRUCTION includes sub­stan­tial improve­ment and means the date the build­ing per­mit was issued.  This, pro­vid­ed the actu­al start of con­struc­tion, repair, recon­struc­tion, reha­bil­i­ta­tion, addi­tion place­ment or oth­er improve­ment, was with­in one hun­dred eighty (180) days of the per­mit date.  The actu­al start means either the first place­ment of per­ma­nent con­struc­tion of a struc­ture on a site, such as the pour­ing of slab or foot­ings, the instal­la­tion of piles, the con­struc­tion of columns or any work beyond the stage of exca­va­tion or place­ment of a man­u­fac­tured home on a foun­da­tion.  For a sub­stan­tial improve­ment, actu­al start of con­struc­tion means the first alter­ation of any wall, ceil­ing, floor or oth­er struc­tur­al part of a build­ing whether or not that alter­ation affects the exter­nal dimen­sions of the building.

STRUCTURE”. See“Building”.

SUBSTANTIAL DAMAGE means dam­age of any ori­gin sus­tained by a struc­ture where­by the cumu­la­tive per­cent­age of dam­age sub­se­quent to the adop­tion of this Code equals or exceeds 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.  The term includes “Repet­i­tive Loss Build­ings” (see definition).

SUBSTANTIAL IMPROVEMENT means any recon­struc­tion, reha­bil­i­ta­tion, addi­tion or improve­ment of a struc­ture tak­ing place sub­se­quent to the adop­tion of this Code in which the cumu­la­tive per­cent­age of improvements:

(A) equals or exceeds fifty per­cent (50%) of the mar­ket val­ue of the struc­ture before the improve­ment or repair is start­ed, or

(B) increas­es the floor area by more than twen­ty per­cent (20%).

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.  This term includes struc­tures which have incurred repet­i­tive loss or sub­stan­tial dam­age, regard­less of the actu­al repair work done.

The term does not include:

(A) 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 assure safe liv­ing con­di­tions, or

(B) any alter­ation of a struc­ture list­ed on the Nation­al Reg­is­ter of His­toric Places or the Illi­nois Reg­is­ter of His­toric Places.

VIOLATION means the fail­ure of a struc­ture or oth­er devel­op­ment to be ful­ly com­pli­ant with the community’s flood­plain man­age­ment reg­u­la­tions.  A struc­ture or oth­er devel­op­ment with­out the required fed­er­al, state, and/or local per­mits and ele­va­tion cer­ti­fi­ca­tion is pre­sumed to be in vio­la­tion until such time as the doc­u­men­ta­tion is provided.