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<br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />. <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />2 <br /> <br />ground level across the valley at specified locations and the <br /> <br /> <br />overlying flood depths. The flood profiles and flooded area <br /> <br /> <br />data presented are based on future, developed conditions in the <br /> <br /> <br />basin as determined from current master planning maps. Possible <br /> <br /> <br />future improvements to control floods are not a consideration of <br /> <br /> <br />this report. <br /> <br />The report provides supplemental information to the Flood <br />Insurance Study for Adams County, prepared for the Federal <br />Insur~ce Administration. <br /> <br />- STUDY AREA DESCRIPTION - <br /> <br />Community Description <br /> <br />The information in this report does not imply any State action <br /> <br /> <br />to zone or regulate use of the flood plains. The District has <br /> <br /> <br />the authority to regulate flood plains, but to date has chosen <br /> <br /> <br />to leave flood plain regulation responsibility with local govern- <br /> <br /> <br />ments. The report provides a suitable basis for the adoption of <br /> <br /> <br />land use controls to guide flood plain management, with considera- <br /> <br /> <br />tion for environmental attributes, and thereby prevent intensifica: <br /> <br /> <br />tion of flood losses. <br /> <br />Adams County is located to the north and east of the City and <br /> <br /> <br />County of Denver. The County was officially formed in 1902 when <br /> <br /> <br />Arapahoe County was divided into the City and County of Denver, <br /> <br /> <br />Arapahoe County and Adams County. Adams County encompasses <br /> <br /> <br />approximately 1,240 square miles, is 72 miles long in an east- <br /> <br /> <br />west direction and 18 miles wide in a north-south direction. <br /> <br />The report was prepared by Gingery Associates, Inc., Consulting <br /> <br /> <br />Engineers, Englewood, Colorado, at the request of the Urban <br /> <br /> <br />Drainage & Flood Control District. <br /> <br />The County has traditionally been agriculturally oriented and <br /> <br /> <br />today is one of the richest irrigated and dry land farming areas <br /> <br /> <br />in the country. The southwestern corner of the County, however, <br /> <br /> <br />has undergone heavy industrial development while experiencing <br /> <br /> <br />a rapid growth in population resulting from Denver metropolitan <br /> <br /> <br />area urbanization and subsequent suburban development. County <br /> <br /> <br />population figures for 1970, 1974 and projected for 1980 and the <br /> <br /> <br />year 2,000 are 185,789, 225,600, 263,827 and 382,415 respectively. <br /> <br />Acknowledgements <br /> <br />All survey and topographic data for this study was collected and <br /> <br /> <br />compiled by Nelson, Haley, Patterson and Quirk of Greeley, <br /> <br /> <br />Colorado, with a contract from the Urban Drainage & Flood Control <br /> <br /> <br />District. <br /> <br />Study Reach Description <br /> <br />This report covers the flood plains of Second and Third Creeks <br /> <br />in Adams County.. These streams are tributaries to the South <br /> <br />Platte River from the east and join the river approximately two <br />