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<br />Standanl P'ajeetl'"lood
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<br />
<br />GLOSSARY OF TERMS
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<br />STREET
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<br />Flood. An overflow of lands not nOl'lllally covered by water, that are
<br />used or usabla by ll)a.n. Floods have two essential characteristics:
<br />the inUndation of land is temporary/ and the land is adjacent to and
<br />inundated by overflow from a rivar or stream, or an ocean, lake, or
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<br />Hot.8ROOK
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<br />other body of standing water.
<br />Normally, a "flood" is considered as any temporary rille
<br />in streamflow or stage, but not the ponding of surface water, that
<br />r..sults in aignificant adverlle effecta in the vioinity. Adverse
<br />effects may include damage.. from overflow of land 4r"",s, temporary
<br />backwater effects in sswere and looal drainage channels, creation
<br />of unsanitary conditions or other unfavorable 8ituations by deposi-
<br />tion of materials in strelllll channel.. during flood recessions, rille
<br />of ground water coincident with increased streamflow. and other
<br />problems.
<br />Flood Crest. 'the maximum stage Or elevation reached by the waters
<br />of a flood at a given looation.
<br />Flood Peak. The maximum instantaneous discharge of a flood at a
<br />given location. It usually occurs at or near the time of the
<br />floodcreat.
<br />Flood Plain. The relatively flat ar.", or lowlanda adjoining the
<br />channel of a river, atream or watercourse, or ocaan, lake, or
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<br />FLOODED AREA
<br />SCAl..E: I'" ~OO'
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<br />other l:)ody of gtanding water, which hail been Or may ba COV9red by
<br />floodwater.
<br />Flood Profile. A graph showing the relationship of water surface
<br />elevation to location, the latter ~enerally expressed as diatance
<br /><>bove mouth for a strearo. of water flowing in an open channel. It
<br />is generally drawn to show surface elevation for the crest of a
<br />specific flood, but _y be prepared for conditions at a given time
<br />orsta9'e.
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<br />D1STIlfrolCE IN
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<br />CROSS SECTION 30
<br />VIEW lOOl<lfrolG DOWNIITREAIriI
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