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<br />DUTCH CREEK <br /> <br />this location. Dutch Creek crosses the South Platte River flood plain. <br />The outer limits of the Dutch Creek flood pl",ln are Indistinct. Over <br />they8"rs.pllstfloodshavebroughtdo....nslltfromtheupperreaches <br />of Dutch Creek and have depOsited the silt 11 long The blinks of The <br />creek In The Columbine areB. At"'1lnylocatlons,thehlgheSTfllndIn <br />the flood plain Is no.... next to the creek. Floodwaters that exceed <br />thechllnnel capacity flo....a...ay from the creek and spread over a wIde <br /> <br />area. <br /> <br /> <br />Table 4 preSenTS the general physical feaTures of the <br />three streams. The photographs on the followIng pages are typical <br />of The reaches as described. <br /> <br />Table 4 <br />PHYSICAL DIMENSIONS <br />DUTCH CREEK, LILLEY GULCH, COON CREEK <br /> <br />Length of Study Rellch (MllesJ <br />Be<l Slope (Feet per Mile) <br />Near Mouth <br />Upstream End of STudy Reach <br />Average <br />Channel Deptns (feeT) <br />Minimum <br />Mexlll\lJm <br />Average <br />Channel Top Width (Feet) <br />Minimum <br />MaxlflOJm <br />Averll911 <br /> <br />Near upstrellm end ot study. <br /> <br />Dutch <br />Creek <br /> <br />STream <br />Lilley <br />GulCh <br /> <br />Coon <br />Creek <br /> <br />8.96 <br /> <br />2.54 <br /> <br />3.29 <br /> <br />" <br />'" <br />" <br /> <br />70 <br />12 <br />" <br /> <br />87 <br />" <br />" <br /> <br />'.0 <br />13.0 <br />5.' <br /> <br />. <br /> <br />2.0 <br />9.5 <br />U <br /> <br /> <br />2.2 <br />1.6 <br /> <br />" <br />'00 <br />" <br /> <br />. <br /> <br />" <br />70 <br />" <br /> <br />" <br />20 <br /> <br />* Much ot The streamCMnnel Is not easily definable. <br /> <br />Looking upstream at Klpll"'! Street. <br /> <br />" <br /> <br />12 <br />