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<br />e <br /> <br />. <br /> <br />CHAPTER 1 <br /> <br />Introduction <br /> <br />1.1 BACKGROUND. <br /> <br />The stale of ColOOldo has approximately 25.126 miles of flowing stream within its <br />103,595 square miles of drainage hasins. On each of these systems, the ftuvial processes <br />of erosion, deposition, channel migration. and the like are occurring. It is not difficult to <br />grasp why in a state with a population of over 3.3 million and so many miles of streams, <br />these processes might conftict with man's intentions. Potential loss of property, <br />threatened public facilities, and endangered resources generate a strong desire to control <br />erosion. <br /> <br />Serving this need has not proven to be an easy task. No two Colorado river or stream <br />systems are alike. They flow through a myriad of physiogrnphic features and have many <br />characteristics. In addition, the understanding of ftuviaI processes and knowledge of <br />available measures required to adequately deal with erosion problems is not widely <br />distributed. <br /> <br />10 an effort to address these concerns. the Colorado Water Conservation Board <br />Commissioned the Omaha District of the U.S. Army COIJlS of Engineers to prepare this <br />manual to address stream bank erosion and its control. Funding and authorization for the <br />effort was provided under Section '}2 of Public Law 93.251 Water Resources <br />Development Act of 1974. <br /> <br />Colorado Erosion Control Manual <br /> <br />1 <br />