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<br />I <br /> <br />I <br />I <br /> <br />3. 7 Hvdraulic Data <br /> <br />I <br />I <br />I <br />I <br /> <br />For the south side of the Arkansas, the 25-, 50-, 100-, <br />and Standard Project Floods will reach the residential and <br />business areas between King Arroyo and Steen Avenue. 'West of <br />Raton Avenue, only the Standard Project Flood will reach south <br />of 1st Street. All four floods will inundate the railroad <br />yards. To be conservative, it shows the 25-year will begin to <br />submerge the portion of the Railroad yards near Sante Fe <br />Avenue, and it is best to start evacuating personnel, <br />equipment, and the trains as soon as warranted. <br /> <br />Along the north side, extensive flooding will occur. <br />Depths of flow in North La Junta and La Junta Gardens will <br />range from 1 to 2 feet for the 25-year flood, up to 8 and 9 <br />feet for the Standard Project Flood. The levee along the north <br />side is ineffective, and will flow over the top near the south <br />end of Jachim. Water will also reach the north side by flowing <br />under the Dike Road Bridge at the Fort Lyon Canal. <br /> <br />I <br />I <br />I <br /> <br />Depths of flow for any location on the Arkansas can be <br />estimated from the flood profiles shown on plates 17 - 20. <br />Floodwater elevations determined in any particular area are <br />not always indicative of the depths actually attained, since <br />floodwater often becomes isolated and trapped in overbank <br />areas resulting in depths greater than those shown. <br /> <br />Table 5 below provides the relevant elevation data <br />needed for the lookout located at Highway 109 bridge. <br /> <br />TABLE 5 - ELEVATION DATA for <br />Main Street (Colorado State Highway 109 Bridge) <br />ARKANSAS RIVER <br /> <br />I <br />I <br /> <br />I <br />I <br />I <br /> <br />. ,..". ,... . ". - :":''- ':':::,::::: :::::':':':':':::':::''-:., ".". , ,'- n. ._. ,::){):,:::::,=::t::/::. \\::;'.:.:;:::;::::)/:::,\}:{,:\::-:\.,:):}::t::::}:::;);::::::}\:::::(:::=' <br />Ct.~:~:j:;;::$;d~$:()tW:!m~i1l$.j$I::::::::; ::,:;:::,:::;':::::::;: :,:::::::::,': .-.-.-- -..",",'- :::::::~:::~:ab:::::::::::::t:::::::::{:::::::::::::::::::::::::;:!\:!:!::::!!::::::::;:)+:::.:::.:.:: <br />$#,ii.~:~~~\l4;pa~!iqi~M$,~~j;+i) <br /> <br /> <br />r"..,..,!,:,..~,.,',..r.,.I,I...I,~,~a',.~,at.,t,.,I,f,:,~,,':,.,.,...........l,:,.,;.t,~,!,..[,i,.,~,;,~,$,J,.,~.,j,.,'....,',....",I.[,~,..,..,I,ie.,.,I,.,[,e,.,i,:,:,~a..,i,:.l,l".,~,i,~,i,~ni,~"."..,.".i""~.,'."..,..I""~"..,'...I,~".i,I,,.,_Bill <br /> <br />""...' -~ ,""~"""'''_ ,v,_,. ",:~~?~i!!ie!ii!ii~~~t <br />U/Uji/\:::Y:\\\?;' ':;:::;(:::::::;::::::::::t:-::\:,;;:,:::,:,::::::\:;\\=:t:n:f::~:::;;:;;::::::---:::-, :, "':::'::,-':.::.' .:' ':. :::;:;:::,:::;:-":;':':::':_::;:.:,:::;;;.:.::;.::_::..:: :,::;.::,:" ',"'"",':'::;':';;:::;',0::;,:::,:,,_:: ,: ::. <br />............'........:...:..-':.'..:.,.:.,.;.:.,.;.:.;-,-,...;-,.-.:........ .,-..-.... ..'.-......;.;.:...:-:.;...,'::;:;:;::;::.'::-:::,;::.:::"'::::::::::::::::'::,;:';::'::,:,::::::..:,::::;:-::',::::::,,::,," <br />-.-.--...-.-...-'...-.-.-.-'-.,-.-'.....'..,.................,.,'...-,-.-,.-,-.-......,.,..._..._..._._...............,.,'...-..........,'.,-.-,-.-...:._,._-._:_,.'.._.....'_'..._c,'.,-,.,_'.-".,-,.,_...:_:_.._._..-.":,,,:,,::_::_-_;_"':_':_;'_"__':_"'" <br />ff"..ft;~:~~~I~~1~_~~~~~~~~~~~&~~!~~~i~f:......i,.........,..'.....".",. <br />'. '~f~#$,~~~P~l!i!,!,~~**,l"I,;P~P.9<::911l:3i.' <br /> <br />I <br /> <br />I <br /> <br />I <br /> <br />11 <br /> <br />I <br />