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<br />3. 7 Hvdraulic Data
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<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.
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<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.
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<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.
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<br />Table 5 below provides the relevant elevation data
<br />needed for the lookout located at Highway 109 bridge.
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<br />TABLE 5 - ELEVATION DATA for
<br />Main Street (Colorado State Highway 109 Bridge)
<br />ARKANSAS RIVER
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<br />Ct.~:~:j:;;::$;d~$:()tW:!m~i1l$.j$I::::::::; ::,:;:::,:::;':::::::;: :,:::::::::,': .-.-.-- -..",",'- :::::::~:::~:ab:::::::::::::t:::::::::{:::::::::::::::::::::::::;:!\:!:!::::!!::::::::;:)+:::.:::.:.::
<br />$#,ii.~:~~~\l4;pa~!iqi~M$,~~j;+i)
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<br />............'........:...:..-':.'..:.,.:.,.;.:.,.;.:.;-,-,...;-,.-.:........ .,-..-.... ..'.-......;.;.:...:-:.;...,'::;:;:;::;::.'::-:::,;::.:::"'::::::::::::::::'::,;:';::'::,:,::::::..:,::::;:-::',::::::,,::,,"
<br />-.-.--...-.-...-'...-.-.-.-'-.,-.-'.....'..,.................,.,'...-,-.-,.-,-.-......,.,..._..._..._._...............,.,'...-..........,'.,-.-,-.-...:._,._-._:_,.'.._.....'_'..._c,'.,-,.,_'.-".,-,.,_...:_:_.._._..-.":,,,:,,::_::_-_;_"':_':_;'_"__':_"'"
<br />ff"..ft;~:~~~I~~1~_~~~~~~~~~~~&~~!~~~i~f:......i,.........,..'.....".",.
<br />'. '~f~#$,~~~P~l!i!,!,~~**,l"I,;P~P.9<::911l:3i.'
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