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<br /> Page <br />. . . . i <br /> ii <br />. . . v <br /> . . . vii <br /> <br />TABLE OF CONTENTS <br />THE HYDRAULIC DESIGN OF ENERGY DISSIPATORS <br /> <br />Subject <br /> <br />. <br /> <br />. . <br /> <br />. <br /> <br />. . . <br /> <br />. . <br /> <br />. . . . <br /> <br />. . <br /> <br />. . <br /> <br />. . <br /> <br />1. <br /> <br />Design Concept . <br /> <br />. . . . . . . . . . . . . . . . . <br /> <br />II. Erosion Hazards . . . . . . . . . . . . . . . <br /> A. Erosion Hazards At Culvert Inlets . . . . . <br /> Depressed Inlets . . . . . . . . . . . <br /> Headwalls and Wingwall . . . . . . . <br /> Inlet Failures . . . . . . . . . . . . <br /> B. Erosion Hazards At Culvert Outlets . . . . . <br /> Types of Scour . . . . . . . . . . . <br /> Standard Culvert Outlet Treatments . . . . <br /> C. ~iprap Protection . . . . . . . . . . <br />III. Culvert Outlet Velocity and Velocity Modification <br /> <br />On Mild Slopes . . <br />On Steep Slopes .. <br /> <br />. . . . . <br /> <br />. . <br /> <br />. .. <br /> <br />. . . . . . . <br /> <br />IV. <br /> <br />Flow Transitions . . . . . . . <br />A. Culverts in Outlet Control <br />Abrupt Expansion . . . . . . <br />ii <br /> <br />. . . . <br /> <br />. . . <br /> <br />. .... <br /> <br />. . . <br /> <br />. . . . <br /> <br />. . . <br /> <br />I <br /> <br />II-l <br />II-l <br />II-l <br />II-2 <br />II-3 <br />11-3 <br />II-4 <br />II-S <br />II-S <br /> <br />III-l <br />III-l <br />III-3 <br /> <br />IV-l <br />IV-l <br />IV-3 <br />