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<br />CHAPTER 4 <br /> <br />CHAPTER 5 <br /> <br />CHAPTER 6 <br /> <br />3,4,' Failures in Composlm Banks - 22 <br />3,4,2 Removal of Dabris From Mass Failure - 22 <br />3.5 Other Mechanical Action - 22 <br /> <br />3.6 Summary - 23 <br /> <br />Methods For Controlling Erosion 25 <br />4.1 General - 25 <br />4.2 Stream Response to Change - 25 <br />4.3 Methods of Classification - 26 <br />4.4 Annoring Techniques - 27 <br />4.5 Flow Deflection Techniques - 38 <br />4.6 Erosion Reduction Methods - 44 <br />4.7 Vegetation - 48 <br />4.8 Summary - 52 <br /> <br />Planning And Preliminary Design 53 <br /> <br />5.1 Introduction - 53 <br /> <br />5.2 Site Reconnaissance - 53 <br />5,2,' Need - 54 <br />5.3 Data Collection & Analysis - 57 <br />5,3,1 Survey and Maps - 57 <br />5,3,2 Aerial Photography - 58 <br />5,3,3 Gaologic - 58 <br />5.3,4 Bank Recession Rams - 58 <br />5,3,5 Sediment SUMlYs - 58 <br />5,3,8 Velocity & Streamflow Measuremant - 59 <br />5.3,7 Groundwater - 6' <br />5,3,8 Data Sources - 62 <br />5.4 Selection of Appropriate Measures - 63 <br />5,4,1 Factors to Consider - 63 <br />5,4,2 ColoreOO Rivers - 64 <br />5.4.3 Environmental Considerations. 64 <br />5,4,4 Past Failures and Successes - 64 <br />5.5 Economic and Financial Evaluation - 64 <br /> <br />5.6 Institutional Considerations - 65 <br />5,6,' Legal Issues ' 65 <br />5,6,2 Permits - 65 <br />5.6.3 Sources of Assistance. 65 <br />5,6,4 Multiple Usa Issues - 66 <br />5,6,5 Public Involvement- 66 <br />5.7 Selecting an Architect/Engineer Finn (AIEl - 66 <br /> <br />Detailed Design and Special Cases 67 <br />6.1 Introduction - 67 <br /> <br />IV <br /> <br />Colorado Erosion Control Manual <br />