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<br />Il~'" __ <br />H <br />i~' , <br />:~i fj <br />!:., <br />1:': <br />l.'. <br />I"', <br />,:1 <br />1""; <br />1. <br />i;, <br /> <br />l~ <br />i~ <br />l'~ <br />'\;;i <br />I(;,~ <br />Iii; <br />'r'" <br />f;>; <br />,.. <br />I~ <br />I~ <br />:r <br />It <br />!'~ <br />i~ <br />I', <br /> <br />Ir <br />',J <br />'" , <br />I,r> . <br />" <br /> <br />!~'i <br />I.- <br />I <br />Ir'. <br />I~ <br />r', <br />I <br />I~ <br />U,',.,. <br />r <br />~ <br />.~ <br />!~...:~"i <br />p. <br />!,~ <br />,~~:,',:,. <br />1,:. <br />~ii <br />r <br />1"..,~~.~.:,., <br />~:~: <br />,~ <br />ti <br />k ' <br />~~ <br />~,~ \ <br />~~; . <br />\~ <br />r." <br />, <br />h:; <br />".~ <br />l~ <br />r <br /> <br /> <br />!'robability <br /> <br />Reach <br /> <br />Recurrence Interval <br /> <br />Reference Point <br /> <br />Residual Damages <br /> <br />Retention <br /> <br />Riprap <br /> <br />Right Bank <br /> <br />Runoff <br /> <br />Side Slope <br /> <br />Skewness <br /> <br />Stream <br /> <br />Watershed <br /> <br /> <br />The annual chance of occurrence of specific hydrologic <br />events, such as rainEall over a specified area or peak <br />discharge at a specified location. It is expressed in <br />percent, e. g.., 5% representing one chance in 20 of the <br />event occurring in any year or an average recurrence <br />of once in twenty years. <br /> <br />A segment of the river defined bet~.,een two specified <br />points. <br /> <br />The average interval of time, in years, within which <br />a given flood will be exceeded once. <br /> <br />A numbered point identifying a specific 10cation for <br />correlating the data shown in various forms through- <br />au t the repor t. <br /> <br />Damages resulting from peak flows which are greater <br />than the design flows, and fc'r which the drainage <br />improvements designed to handlle specific magnitude <br />flows cannot protect. <br /> <br />The prevention of runoff from entering the storm or <br />combined Sewer system by storing it on a surface area <br />or in a storage basin. <br /> <br />Broken rocks placed on earth surfaces to prevent erosion <br />from the action of flowing water. <br /> <br />The bank on' the right side of a river, stream, or water <br />course, looking downstream. <br /> <br />The quantity of rainfall whieh flows over the surface <br />to enter the stream as discharge volume. The diffe-rence <br />in quantity between rainfall and runoff represents losses <br />to infiltration and interception. <br /> <br />The slope of the banks of a ,chann..l, dam, or ..mbankment. <br />The steepness of the bank is usually specified using a <br />ratio of the length of horizontal run p..r one foot of <br />vertical rise. <br /> <br />A numerical measure or index of asymmetry of a frequency <br />distribution. From a practical standpoint, the term <br />indicates the position or negative curvature of a flood I <br />frequency relation. <br /> <br />Any natural channel or depression through which water <br />flows either continuously, intermi.ttently or periodi- <br />cally, including any artificial modification of the <br />natural channel or depression. <br /> <br />The drainage area situated above a specifi.ed point on <br />a stream including the area drained by tributary streams <br />which enter the IDHin stream above this point. <br /> <br />- 9iL- <br />