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<br />(a) Accessorv Use or structure - a use or structure on the
<br />same lot with, and of a nature customarily incidental and
<br />subordinate to, the principal use or structure.
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<br />(b) Eaual Deqree of Encroachment - a method of determining
<br />the location of floodway boundaries so that flood plain
<br />lands on both sides of a flooding source are capable of
<br />conveying a proportionate share of flood flows.
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<br />(c) Flood - a temporary increase in the flow or stage of a
<br />lake or other flooding source that results in the
<br />inundation of normally dry areas.
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<br />(d) Flood Frequency - the average frequency, statistically
<br />determined, for which it is expected that a specific
<br />flood stage or discharge may be equaled or exceeded.
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<br />(e) Flood Plain - the areas which have been or hereafter may
<br />be covered by the regional flood.
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<br />(f) Flood-Proofing - a combination of structural provisions,
<br />changes, or adjustments to properties and structures
<br />subject to flooding, primarily for the reduction or
<br />elimination of flood damages.
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<br />(g) Flood Plain Zonina District - the area delineated A-l, A-,
<br />2, A-3, A-4, A-6, A-7 or A-H on the Flood Insurance Rate
<br />Map attached to the Flood Plain zoning Map.
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<br />(h) Obstruction - any dam, wall, wharf, embankment, levee,
<br />dike, pile, abutment, projection, excavation, channel
<br />modification, culvert, building, wire, fence, stockpile,
<br />refuse, fill, structure, or matter in, along, across, or
<br />projecting into any channel, watercourse, or regulatory
<br />flood plain which may impede, retard, or change the
<br />direction of the flow of water, either in itself or by
<br />catching or collecting debris carried by such water.
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<br />(i) Reach - a length of a watercourse or water body having
<br />relatively the same flood hazard.
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<br />(j) Reaional Flood - a flood which is representative of large
<br />floods known to have occurred generally in Minnesota and
<br />reasonably characteristic of what can be expected to
<br />occur on an average frequency in the magnitude of the
<br />lOO-year recurrence interval. Regional flood is
<br />synonymous with the term "base flood" used in the Flood
<br />Insurance study.
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<br />(k) structure - anything constructed or erected on the ground
<br />or attached to the ground, including, but not limited to,
<br />buildings, factories, sheds, detached garages, cabins,
<br />mobile homes, and other similar items.
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