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<br />'I <br />, <br /> <br />-z.fi ~ti5 <br /> <br />) <br /> <br />" <br /> <br />PREFACE <br /> <br />"1 <br />, <br /> <br />'1 <br />" <br /> <br />FLOOD PLAIN MANAGEMENT <br />STUDY <br /> <br />This report includes information on the flood hazard areas along <br />Pawnee Creek between County Road 25 and U.S. Highway 6 in the <br />vieinity of Sterling and Atwood, Colorado. <br /> <br />., <br />, <br />" <br /> <br />PAWNEE CREEK <br />" <br />LOGAN COUNTY, COLORADO <br /> <br />Because of the potential for flood damages, detailed flood hazard <br />studies have been recognized as an essential item in guiding the <br />use of flood plains. The purpose of this report is to provide <br />adequate mapping and data tor implementing flood plain management <br />programs. <br /> <br />'1 <br /> <br />" <br /> <br />The Pawnee Creek channel along the study reach is not adequate to <br />carry significant flood flows from the large contributing <br />drainage area. Out-of-bank fleoding occurs on a regular basis <br />with segments of this flow traveling overland in several <br />directions away from the main channel. The need to establiSh <br />these locations of overflow and determine their magnitude as well <br />as identify possible flood damage reduction opportunities <br />prompted this study. <br /> <br />.. <br /> <br />" <br /> <br />. , <br />, <br />, <br />.. <br /> <br />'-j <br /> <br />.. <br /> <br />Included in the report is information on past floods, the <br />potential for future floods, flooded area maps, water surface <br />profiles, selected cross sections, peak discharge data, and <br />recommendations for reducing potential flood damages. <br /> <br />.. <br /> <br />.. <br /> <br />Prepared by the <br />u.s. Department of Agriculture <br />Soil Conservation Service <br />Lakewood, Colorado <br />in cooperation with the <br />Colorado Water Conservation Board <br />Logan County, Colorado <br />ilnd the <br />Town of Sterling, colorildo <br /> <br />The Soil Conservation Service conducted the technical studies and <br />prepared the report. These services were carried out in <br />accordance with the Plan of Work of February 1990. <br /> <br />" <br /> <br />" <br /> <br />(April, 1992) <br /> <br />The assistance and cooperation provided by the Colorado Water <br />Conservation Board, Logan County, and the Town of Sterling are <br />appreciated and gratefully acknowledged. <br />The field survey, hydrologic, hydraulic, and other pertinent data <br />and computations are on file with the u.s. Department of <br />Agriculture,' Soil Conservation Service, 655 Parfet Street, <br />Lakewood, COlorado 80215-5517, telephone (303) 236-2900. <br />Additional copies of this report may be obtained from the soil <br />Conservation Servic~. <br /> <br />" <br /> <br />, <br /> <br />"All progrll.ms a.nd services of the U.S. Departrnen't of Agriculture, <br />Soil Conservation Service, are offered on a nondiscriminatory basis <br />without regard to rac~, color, national origin, religion, race, <br />age, marital status, or handic;;Ip." <br /> <br />.. <br />