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<br /> Figure <br /> 13. <br /> 14. <br /> 15. <br /> 16. <br /> 17. <br /> 18-19. <br /> 20. <br /> 21. <br /> 22. <br /> 23. <br /> 24. <br /> 25-26. <br /> 27, <br /> 28. <br /> 29. <br /> 30. <br /> 31. <br /> 32. <br />j <br />J 33. <br />! 34. <br />, 35. <br />; <br /> 36. <br />I 37. <br />j <br />! 38. <br />1 <br />I <br />1 <br />~ <br /> <br />I <br /> <br />Page <br /> <br />Photograph of new rip rap placed on left bank (upstream view) of <br />Hoh River at site 1 near Forks, Washington (photographed <br />August 1982) ------------------------------.--------------------- 23 <br />Photograph of damaged rip rap on left bank (downstream view) of <br />Hoh River at site 1 near Forks, Washington (photographed <br />December 1982) -------------------------------------------------- 23 <br />Photograph of damaged riprap on right bank of Truckee River at <br />Sparks, Nevada (photographed June 15, 1983) --------------------- 25 <br />Water-surface profiles of Truckee River at Sparks, Nevada, for <br />floods of December 20, 1981, and May 27, 1982 ------------------- 26 <br />Sketch of scour hole in rip rap adjacent to obstruction on <br />streambank ------------------------------------------------------ 27 <br />Graphs of comparison of procedures for estimating stone size: <br />18. On channel bank based on permissible velocities -------------- 29 <br />19. On channel bed using critical shear stress ------------------- 30 <br />Aerial photograph of Pinole Creek at Pinole, California, showing <br />study reach (October 1, 1982) -----.----------------------------- 32 <br />Flow chart of rip rap design procedure for HEC-ll ------------------ 35 <br />Graph of relationship of Dso stone size on channel bottom <br />to velocity against stone --------------------------------------- 37 <br />Graph of relationship of stone size to velocity ------------------- 38 <br />Sketch showing toe trench detail for riprap protection ------------ 41 <br />Flow charts for application of HEC-15 procedures: <br />25. Straight channel with side slopes flatter than 3:1 ----------- 44 <br />26. Curved channel with side slopes steeper than 3:1 ------------- 45 <br />Graph of applicability of chart 27 in HEC-15 to open channels ----- 48 <br />Graph of comparison of median stone size (Dso) estimated on basis <br />of shear stress (HEC-15 procedures) and performance at field <br />sites ----------------------------------------------------------- 54 <br />Flow chart for bank protection procedure in "Bank and Shore <br />Protection in California Highway Practice" ---------.------------ 57 <br />Flow chart for application of U.S. Army Corps of Engineers <br />Manual EM-1601 in design of rock riprap ------------------------- 63 <br />Sketch of channel bank used to measure boundary resistance in <br />the form of Manning's n and equivalent roughness k -------------- 66 <br />Graph of relationship of Manning's n and equivalent roughness k <br />for channel banks -----------------------.----------------------- 67 <br />Definition sketch of variables used by Simons and Senturk for <br />design of bank protection --------------------------------------- 75 <br />Flow chart for Simons and Senturk bank protection procedure ------- 76 <br />Graph of curve to determine maximum stone size in rip rap mixture -- 79 <br />Graph of relationship to determine median stone size based <br />on average velocity (adapted from USBR-EM-25) ------------------- 80 <br />Graphs of comparison of stone gradations specified in different <br />design procedures ----------------------------------------------- 86 <br />Graph of comparison of median stone size (Dso) estimated on basis <br />of mean velocity (HEC-ll procedures) and performance at field <br />sites ----------------.------------------------------------------ 89 <br /> <br />v <br />