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<br /> 0 <br /> 0 <br /> < <br /> . <br /> " <br /> 0 <br /> u <br /> z <br /> 0 " <br /> u <br /> 0 z <br /> u " <br /> u " <br /> " 0 <br /> < " <br /> I <br /> U 0 <br /> 0 0 <br /> " < <br /> 0 " <br />X 0 <br /> 8 " <br />u 0 <br />" 0 U <br />w " <br />< , , <br />, 0 <br /> Z <br /> , z <br /> 0 0 <br /> Z " <br /> . U <br /> u <br /> . " <br /> 0 <br /> E U <br /> " I <br /> x W <br /> x <br /> . Z <br /> " <br /> ~ <br /> U <br /> " <br /> , <br /> " <br /> <br />, <br />, <br />I <br />, <br />I <br /> <br />. t DUO XO " 000 NOw X 00 <br /> o E . "x. . X 0 O"x "'::i:9 0 UO <br />X " . U ,"0 , " '0" . X X <br />X . <br />I " 0 , " " <br />0 <br />. <br />.x 000 000 00 0 0 00 000 <br />0 w ODD 000 DO 0 0 00 000 <br /> 0 X 000 OwO 00 0 U .. oOw <br />. " . . - . . - . . . . <br />X 0 w 0 U" xOO ..U 0 OX XO X <br />0 E '" ," X '" , 00' Ow XX U <br />0 < 0 " " "" '" <br /> <br />but the combination of factora necessary to ~rodwc~ ~uch large <br />flo~s ~ould t~rnly oCCur. <br /> <br />Hazards of L~rns rlood~ <br />ThB hazaro3 to lifs end extent of damage caused by any <br />flood depend on the topography of the area floodod, d~pth ~nd dur~. <br />tion of flooding, velocity of flow, rats of rise, and davalopmonts <br />on the flood pl~ine. Fwture floods of Intermediate Regioo~l or <br />5tand~rd Project flood magnitude on Monumant Creek ~ould inundatE <br />r6Bidenti~1, com~erciel, end indust,i~l davalopmants in the Colorado <br />SpriI19SdrE". <br /> <br />. <br /> <br /> " <br /> U 00 '"0 " w " " 0" . <br />0" w u, 0 Uw . u U Uw <br />ON . 0" 0 .. . 0 . . om 0 <br />00 " " m "" " " " " "" " <br />" " ." <br /> . 'N . . . <br /> 'x X DO w . U . X X X <br />Ox" " WO "" " , " " x"" <br />0 . <br /> . . . I U . . . >X . x x . <br />>0 0 0 ." 0 0 0 " 0 0 0 0 , <br />. I I I I I I I " I I I I I I <br />E-"-' ,D, ", ", ,,, <br /> <br /> ~l <br />0 <br />0 <br />" <br />w . <br />I . . <br />" 0 " <br />" . " <br />0 0 . <br />w .x X <br />0 . . . <br />0 X X rr <br />uo x . <br /> <br /> Velocities greater than 3 feet per second combined with <br /> depths ,.0 foot or more m generally considered hazardous " life <br />.~ 0 xn" " wm . 0 < " 0 < <br />" "XU '00 < 0 n 0 . . well property. Water flowin') ,. ," faetper second <br />NX n " ,0" " 0 . n " " "' excess <br /> <br /> " capallle " trerlsporting sediment ""' cousing eevere eroeion " <br /> 0 n etre"",barlke ,., fill around bridg~ obLJtm"rlts. Whore velo~itiee <br /> X ., <br /> 0 , , , drop below , feet oOGorld, debri'e M' silt deposits build <br /> ., " x , " ." ~. 00' <br /> " 0 " 0 . n <br /> w , > , 0 0 . extending flood demage~ M' cuoting health conditions. <br /> . 0 ox , " 0 X . '" adverso <br /> 0 . "" 0 0 0 . 0 <br /> e 0 X . , x , . , " <br /> 0 ou . n . 0 . ,", e~tur"t1on eff"cts 0' long_duration flooding oM w"eken lJridge <br /> ., .x .W n <br /> x n Hw , , , . " . . <br />0 .0 " , 0 , 0 . " 0 0 0 . , , abutments, 1al/e"s, M' other embankment works " they feil ,. '", <br />.x "" W .,u , . , <br /> . . .. . , , ,w 'w . <br />0 0 0 . . . . . , " , n , " " floo<::~"tor~ rc::;odo. <br />0 0 0 I 0 , . " , , 0 x . " x . . <br />" . '0 , . , , " " E <LJ . , " <br />. x " < < II I I 0 < . I < Property damage from great floods ,. del/eloped arees <br />, 0 0 x. w w w . " . " Xw U . . <br />0 " " X I X , " 0 . x . , " I <br />0 0 0 . 0 0 0 0 0 0 0 w X 0 W 0 , oM " ol/\!uhelming. '", entire community suffers when streets, <br />" u u "^ '0 z " z z < ZtJ1 < Z " <br /> bridges, selllers, 0", other public utllai~s '" destroyed " other- <br /> <br /> , <br /> . <br /> . .. <br /> " .. . <br /> 0 u " " . . <br /> , . " " x 0 <br /> "" " . x . .u . <br /> WI . x . . x .. <br /> , x U , , c x < U I U <br /> " . " .x . 0 u . . 0 <br /> u ,., 0< . >, . . , I~I <br /> " I , X 0 0 . . 0 , '" 0 <br /> w x 0 , 0 u . . I , U " ....,ro....., <br /> 0 ," u 0 u .. " .. u ., " <br />" o~ . - uo u - m '" <br />ou , " , I " . " <br />. I 0 , .. " . 'w " " . w" . <br />" 0 . 0 . 0 - , , . . 0 '0 , <br />w Ow " .. "' e " . . < . '" . <br />" "0 0 OZ" 0 OW m U " wE 0 <br /> <br />wise made irloperetil/e. Adding to the physical hazard~, a graat <br />flood Can unl""sh illrle",~ and deadly epidemic dis..a~... Sanitery <br />sewers become pressuro lirles, blowing manhole covers to spew raw <br />selll~ge into the surf~ce floodwaters: sellloge treotment plants and <br />feed",r lirlea can be washed out: "rld stocky~rd wastes Can add to <br />the pollutiorl ~nd hazard of epidemic. Nelllspapers sometimes taport <br />s "lighter sidB of the news" in picturing children ~t play in the <br />mud and standing watBr left ~y s receding flood. Unfortcrlstely, <br /> <br />" <br /> <br />'" <br />