Laserfiche WebLink
<br />diverted water flowinq west of Interstate Hiqhway 7C" flows at a hioher <br /> <br /> <br />elevation than that adjacent to the river channel at reference ooint 99. <br /> <br /> <br />For this reason two reference noints are nrovlded for cross sectio~ 3-3. <br /> <br /> <br />Reference noint 99 in table A and reference point E in tableqannlv east <br /> <br /> <br />and west of Interstate Hiohway 75 resnectively. <br /> <br /> <br />Flood nlain widths i1S defined in this rerort are fairly unifor'11 <br /> <br /> <br />throuqh the study reach. The SPF flood ['lain varies from annroxinately <br /> <br /> <br />4,000 to fi, 000 feet in width uostream from thn Great \'Iestern Ra i 11'IilV at <br /> <br /> <br />refererlC" ro i nt 130. Oownstrear'l from th i s ['0 i nt, the flood P I a i n narrows <br /> <br /> <br />somewhat to a wi~th rounhly ranninq between 7500 and 4000 feet. <br /> <br />The flood nlain throuohout thn studv reach remains essnntial Iy <br /> <br /> <br />und(welnned. Some or'avel Minin'l onerations loc1lted Mostly unstroam from <br /> <br /> <br />Interstate lIiohwil" 75 1lre within the confines ("of the flood plain, ^~jacent <br /> <br /> <br />to reference noint 90 additional flood nlain development annears to be <br /> <br /> <br />occurrinq on the far rioht bank. The balance of the flood nlain anrears <br /> <br /> <br />to be in mostlv anricultural use with very little develonment other than <br /> <br /> <br />that associated with farminq and ranchinn. <br /> <br />Figure 15. Potenti91 flood depths at the Colorado <br />State Highway 392 bridge (reference <br />point 115). May 1974. <br /> <br />Tho followino ohotoqranhs illustrate flood denths durinn rotential <br />floods at two locations. <br /> <br /> <br />Figure 16. Potential flood ~epths at a Weld County bridge located at reference <br />point 129. May 1974. <br /> <br />29 <br /> <br />30 <br />