City of Evanston, WY
Uinta County
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Table of Contents
Table of Contents
[Amended by Ord. No. 98-19; 2-2-2010 by Ord. No. 10-01]
Unless specifically defined below, words or phrases used in this Part 8 shall be interpreted so as to give them the meaning they have in common usage and to give this Part 8 its most reasonable application.
APPEAL
A request for a review of the City Engineer's interpretation of any provisions of this Part 8 or a request for a variance.
AREA OF SPECIAL FLOOD HAZARD
The land in the floodplain subject to a one-percent-or-greater chance of flooding in any given year. The area may be designated as Zone A on the Flood Hazard Boundary Map (FHBM). After detailed ratemaking has been completed in preparation for publication of the e-FIRM, Zone A usually is refined into Zones A, AE, AH, AO, A1-99, VO, V1-30, VE or V.
BASE FLOOD
The flood having a one-percent chance of being equaled or exceeded in any given year.
DEVELOPMENT
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 located within the area of special flood hazard.
ELEVATED BUILDING
A nonbasement building built, in the case of a building in Zones A1-30, AE, A, A99, AO, AH, B, elevated floor, or in the case of a building in Zones V1-30, VE, or V, to have the bottom of the lowest horizontal structural member of the elevated floor elevated above the ground level by means of pilings, columns (posts and piers), or shear walls parallel to the floor of the water; and adequately anchored so as not to impair the structural integrity of the building during a flood of up to the magnitude of the base flood. In the case of Zones A1-30, AE, A, A99, AO, AH, B, C, X, and D, "elevated building" also includes a building elevated by means of fill or solid foundation perimeter walls with openings sufficient to facilitate the unimpeded movement of floodwaters. In the case of Zones V1-30, VE, or V, "elevated building" also includes a building otherwise meeting the definition of "elevated building" even though the lower area is enclosed by means of breakaway walls if the breakaway walls meet the standards of Section 60.3(e)(5) of the National Flood Insurance Program regulations.[1]
EXISTING CONSTRUCTION
For the purposes of determining rates, structures of which the start of construction commenced before the effective date of the FIRM or before January 1, 1975, for FIRMs effective before that date. "Existing construction" may also be referred to as "existing structures."
EXISTING MANUFACTURED HOME PARK OR SUBDIVISION
A manufactured home park for which the construction of facilities for servicing the lots on which the manufactured homes are to be affixed (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 the City.
EXPANSION TO EXISTING MANUFACTURED HOME PARK OR SUBDIVISION
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).
FLOOD INSURANCE RATE MAP (FIRM)
An official map of the community on which the Federal Emergency Management Agency has delineated areas of special flood hazards and the risk premium zones.
FLOOD INSURANCE STUDY
The official report provided by the Federal Emergency Management Agency that includes flood profiles, the Flood Boundary-Floodway Map, and the water surface elevation of the base flood.
FLOOD or FLOODING
A general and temporary condition of partial or complete inundation of normally dry land areas from:
A. 
The overflow of waters; and/or
B. 
The unusual and rapid accumulation or runoff of surface waters from any source.
FLOODPLAIN MANAGEMENT
The operation of an overall program of corrective and preventative measures for reducing flood damage, including but not limited to emergency preparedness plans, flood control works, and floodplain management regulations.
FLOODPLAIN MANAGEMENT REGULATIONS
Zoning ordinances, subdivision regulations, building codes, health regulations, special-purpose ordinances (such as a floodplain ordinance, grading ordinance and erosion control ordinance) and other applications of police power. The term describes such state or local regulations, in any combination thereof, which provide standards for the purpose of flood damage prevention and reduction.
FLOODPLAIN OR FLOOD-PRONE AREA
Any land area susceptible to being inundated by water from any source (see definition of "flooding").
FLOOD PROOFING
Any combination of structural and nonstructural additions, changes, or adjustments to structures which reduce or eliminate flood damage to real estate or improved real property, water and sanitary facilities, structures and their contents.
FLOODWAY
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.
HIGHEST ADJACENT GRADE
The highest natural elevation of the ground surface prior to construction next to the proposed walls of a structure.
HISTORIC STRUCTURE
Any structure that is:
A. 
Listed individually in the National Register of Historic Places (a listing maintained by the Department of the Interior) 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 historical significance of a registered historic district or a district preliminarily determined by the Secretary to qualify as a registered historic district;
C. 
Individually listed on a state inventory of historic places in states with historic preservation programs which have been approved the Secretary of the Interior; or
D. 
Individually listed on a local inventory of historic places in communities with historic reservation programs that have been certified either:
(1) 
By an approved state program as determined by the Secretary of the Interior; or
(2) 
Directly by the Secretary of Interior in states with approved programs.
LEVEE
A man-made structure, usually an earthen embankment, designed and constructed in accordance with sound engineering practices to contain, control, or divert the flow of water so as to provide protection from temporary flooding.
LEVEE SYSTEM
A flood protection system which consists of a levee or levees, and associated structures, such as closure and drainage devices, which are constructed and operated in accordance with sound engineering practices.
LOWEST FLOOR
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 nonelevation design requirements of this Part 8.
MANUFACTURED HOME FOR FLOODPLAIN MANAGEMENT PURPOSES
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 attached to the required utilities. The term "manufactured home" does not include a recreational vehicle.
MANUFACTURED HOME or MANUFACTURED HOUSING
A factory-built structure. Manufactured housing does not include a panel, kit or component house or structure which does not utilize or incorporate a marriage wall. Manufactured housing may be used for residential, educational, commercial and industrial use.
MANUFACTURED HOME PARK OR SUBDIVISION
A parcel (or contiguous parcels) of land divided into two or more manufactured home lots for rent or sale.
MEAN SEA LEVEL
For purposes of the National Flood Insurance Program, the National Geodetic Vertical Datum (NKVD) of 1929 or other datum to which base flood elevations shown on the City's Flood Insurance Rate Map are referenced herein.
NEW CONSTRUCTION
For the purpose of determining insurance rates, structures for which the start of construction commenced on or after the effective date of an initial FIRM or after December 31, 1974, whichever is later, and includes any subsequent improvements to structures. For floodplain management purposes, "new construction" means structures for which the start of construction commenced on or after the effective date of a floodplain management regulation adopted by the City and includes any subsequent improvements to such structures.
NEW MANUFACTURED HOME PARK OR SUBDIVISION
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 (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 these floodplain management regulations.
RECREATIONAL VEHICLE
A vehicle which is:
A. 
Built on a single chassis;
B. 
Four hundred square feet or less when measured at the largest horizontal projections;
C. 
Designed to be self-propelled or permanently towable by a light-duty truck; and
D. 
Designed primarily not for use as a permanent dwelling but as temporary living quarters for recreational camping, travel, or seasonal use.
START OF CONSTRUCTION
Includes substantial improvement, and means the date the building permit was issued, provided the actual start of construction, repair, reconstruction, placement, or other improvement was within 180 days of the permit date. The actual start means 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 the placement of a manufactured home on a foundation. 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, footing, 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 part of the main structure. For a substantial improvement, the 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
A walled and roofed building or manufactured home that is principally aboveground.
SUBSTANTIAL DAMAGE
Damage of any origin sustained by a structure whereby the costs of restoring the structure to its before-damaged condition would equal or exceed 50% of the market value of the structure before the damage occurred.
SUBSTANTIAL IMPROVEMENT
Any reconstruction, rehabilitation, addition, or other improvement of a structure, the cost of which equals or exceeds 50% of the market value of the structure before the start of construction of the improvement. This term includes structures which have incurred substantial damage, regardless of the actual repair work performed. The term does not, however, include either:
A. 
Any project for improvement of a structure to correct existing violations of state or local health, sanitary, or safety code specifications which have been identified by the local code enforcement official and which are the minimum necessary to assure safe living conditions; or
B. 
Any alteration of an historic structure, provided that the alteration will not preclude the structure's continued designation as an historic structure.
VARIANCE
A grant of relief from the requirements of this Part 8 which permits construction in a manner that would otherwise be prohibited by this Part 8.
VIOLATION
The failure of a structure or other development to be fully compliant with the City's floodplain management regulations. A structure or other development without the elevation certificate, other certifications, or other evidence of compliance required in Section 60.3(b)(5), (c)(10), (d)(3), (e)(2), (e)(4) or (e)(5)[2] is presumed to be in violation until such time as that documentation is provided.
WATER SURFACE ELEVATION
The height in relation to the National Geodetic Vertical Datum (NKVD) of 1929 (or other datum, where specified), of floods of various magnitudes and frequencies in the flloodplains of coastal or riverine areas.
[1]
Editor's Note: See 44 CFR 60.3(e)(5).
[2]
Editor's Note: See 44 CFR 60.3(b)(5), (c)(10), (d)(3), (e)(2), (e)(4) and (e)(5).