(a) 
The flood hazard areas of the city are subject to periodic inundation which results in loss of life and property, health and safety hazards, disruption of commerce and governmental services, and extraordinary public expenditures for flood protection and relief, all of which adversely affect the public health, safety and general welfare.
(b) 
These flood losses are created by the cumulative effect of obstructions in floodplains which cause an increase in flood heights and by the occupancy of flood hazard areas by uses vulnerable to [floods and hazardous to other lands because they are] inadequately elevated, floodproofed or otherwise protected from flood damage.
(Ordinance 2-86, sec. 1, adopted 10/21/1986; 1999 Code, sec. 50-31)
It is the purpose of this article to promote the public health, safety and general welfare and to minimize public harm and private losses in special flood hazard areas with provisions designed to:
(1) 
Restrict or prohibit uses that are dangerous to health, safety or property in times of flood, or cause excessive increases in flood heights.
(2) 
Require that uses vulnerable to floods, including public facilities which serve such uses, be protected against flood damage at the time of initial construction.
(3) 
Control, in the sense of providing authoritative guidance, the alteration of natural floodplains and their protective barriers.
(4) 
Prevent the construction of barriers which will divert floodwaters and subject other lands to greater flood hazards.
(5) 
Control, in the sense of authoritative guidance, development which would cause greater erosion or potential flood damage such as grading and excavation.
(Ordinance 2-86, sec. 2, adopted 10/21/1986; 1999 Code, sec. 50-32)
The objectives of this article are to:
(1) 
Protect human life and property exposed to the hazards of flooding.
(2) 
Ensure that potential property owners are notified if property is in a special flood hazard area.
(3) 
Minimize the need for rescue and relief efforts associated with flooding and generally undertaken at the expense of the general public.
(4) 
Minimize prolonged business interruptions.
(5) 
Minimize damage to public facilities and utilities such as water and gas mains, electric, telephone and sewer lines, street and bridges located in special flood hazard areas.
(6) 
Minimize expenditures of future public money for costly flood control projects.
(Ordinance 2-86, sec. 3, adopted 10/21/1986; 1999 Code, sec. 50-33)
The following words, terms and phrases, when used in this article, shall have the meanings ascribed to them in this section, except where the context clearly indicates a different meaning:
Appeal
means a request for a review of the city secretary’s interpretation of any provision of this article or a request for a variance.
Area of shallow flooding
means a designated AO zone on the city’s flood insurance rate map with base flood depths from one to three feet. This condition occurs where a clearly defined channel does not exist, where the path of flooding in unpredictable and indeterminate, and where velocity flow may be evident.
Area of special flood hazard
means the land in the floodplain within the city subject to a one percent or greater chance of flooding in any given year.
Base flood
means that flood having a one percent chance of being equaled or exceeded in any given year.
Development
means any man-made change to improved or unimproved real estate, including but not limited to buildings or other structures, mining, dredging, filling, grading, paving, excavation or drilling operations.
Flood or flooding
means a general and temporary condition of partial or complete inundation of normally dry land areas from the unusual and rapid accumulation or runoff of surface waters from any source.
Flood hazard boundary map
means an official map of the city, issued by the Federal Emergency Management Agency, where the areas within the boundaries of special flood hazards have been designated as zone A.
Flood insurance rate map
means an official map of the city, on which the Federal Emergency Management Agency has delineated both the areas of special flood hazard and the risk premium zones applicable to the city.
Flood insurance study
means the official report provided by the Federal Emergency Management Agency. The report contains flood profiles, and the water surface elevation of the base flood, as well as the flood hazard boundary-floodway map.
Floodway
means the channel of a river or other watercourse and the adjacent land areas that must be reserved in order to discharge the base flood without cumulatively increasing the water surface elevation more than one foot.
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 this article.
Manufactured home
means a structure, transportable in one or more sections, which is built on a permanent chassis and is designed for use with or without a permanent foundation when connected to the required utilities. For floodplain management purposes, the term “manufactured home” also includes park trailers, travel trailers and other similar vehicles placed on a site for greater than 180 consecutive days. For insurance purposes, the term “manufactured home” does not include park trailers, travel trailers and other similar vehicles.
Manufactured home park or subdivision
means a parcel (or contiguous parcels) of land divided into two or more manufactured home lots for rent or sale.
Mean sea level
means the average height of the sea for all stages of the tide.
Start of construction
means the first placement of permanent construction of a structure (other than a manufactured home) on a site, such as the pouring of slabs or footings or any work beyond the stage of excavation. Permanent construction does not include land preparation, such as clearing, grading and filling; nor does it include the installation of streets and/or walkways; nor does it include excavation for a basement, footings, piers or foundations or the erection of temporary forms; nor does it include the installation on the property of accessory buildings, such as garages or sheds not occupied as dwelling units or not a part of the main structure. For a structure (other than a manufactured home) without a basement or poured footings, the start of construction includes the first permanent framing or assembly of the structure or any part of a structure on its piling or foundation. For manufactured homes not within a manufactured home park or manufactured home subdivision, start of construction means the affixing of the manufactured home to its permanent site. For manufactured homes within manufactured home parks or manufactured home subdivisions, start of construction is the date on which the construction of facilities for servicing the site on which the manufactured home is to be affixed (including, at a minimum, the construction of streets, either final site grading or the pouring of concrete pads, and installation of utilities) is completed.
Structure
means a walled and roofed building that is principally above ground, as well as a manufactured home.
Substantial improvement
means any repair, reconstruction, or improvement of a structure the cost of which equals or exceeds 50 percent 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. For the purposes of this definition, 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 assure safe living conditions, or any alteration of a structure listed on the National Register of Historic Places or the state inventory of historic places.
Variance
is a grant of relief to a person from the requirements of this article when specific enforcement would result in unnecessary hardship. A variance, therefore, permits construction or development in a manner otherwise prohibited by this article.
(Ordinance 2-86, sec. 4, adopted 10/21/1986; 1999 Code, sec. 50-34)
This article shall apply to all areas of special flood hazard within the jurisdiction of the city.
(Ordinance 2-86, sec. 5, adopted 10/21/1986; 1999 Code, sec. 50-35)
The areas of special flood hazard identified by the Federal Insurance Administration on its flood hazard boundary map, #4810159A, dated March 26, 1976, and any revisions to that map are adopted by reference and declared to be a part of this article.
(Ordinance 2-86, sec. 6, adopted 10/21/1986; 1999 Code, sec. 50-36)
A development permit shall be required to ensure conformance with the provisions of this article.
(Ordinance 2-86, sec. 7, adopted 10/21/1986; 1999 Code, sec. 50-37)
No structure or land shall be located, altered, or have its use changed without full compliance with the terms of this article and other applicable regulations.
(Ordinance 2-86, sec. 8, adopted 10/21/1986; 1999 Code, sec. 50-38)
This article is not intended to repeal, abrogate or impair any existing easements, covenants or deed restrictions. However, where this article and other [another ordinance] conflict or overlap, whichever imposes the more stringent restrictions shall prevail.
(Ordinance 2-86, sec. 9, adopted 10/21/1986; 1999 Code, sec. 50-39)
In the interpretation and application of this article, all provisions shall be:
(1) 
Considered as minimum requirements;
(2) 
Liberally construed in favor of the city council; and
(3) 
Deemed neither to limit nor repeal any other powers granted under state statutes.
(Ordinance 2-86, sec. 10, adopted 10/21/1986; 1999 Code, sec. 50-40)
The degree of flood protection required by this article is considered reasonable for regulatory purposes and is based on scientific and engineering considerations. On rare occasions greater floods can and will occur, and flood heights may be increased by man-made or natural causes. This article does not imply that land outside the areas of special flood hazards or uses permitted within such areas will be free from flooding or flood damages. This article shall not create liability on the part of the city or any officer or employee of the city for any flood damages that result from reliance on this article or any administrative decision lawfully made under this article.
(Ordinance 2-86, sec. 11, adopted 10/21/1986; 1999 Code, sec. 50-41)