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<br />e <br /> <br />~ <br /> <br />-~- <br /> <br />.. <br /> <br />e <br /> <br />. <br /> <br />.- <br />.. <br /> <br />e <br /> <br />CONTENTS (Continued) <br /> <br />Page <br /> <br />III. Box Culvert Improved Inlet Design (Continued) <br /> <br />Slope-Tapered Inlets <br /> <br />13-27 <br /> <br />Throat Control <br /> <br />13-27 <br /> <br />Face Control <br /> <br />13-29 <br /> <br />Crest Control <br /> <br />13-29 <br /> <br />Design Limitations <br /> <br />13- 29 <br /> <br />Performance Curves <br /> <br />13-30 <br /> <br />Double Barrel Design <br /> <br />13-30 <br /> <br />IV. Pipe Culvert Improved Inlet Design <br /> <br />13-33 <br /> <br />Bevel-Edged Inlets <br /> <br />13-33 <br /> <br />Side-Tapered Pipe Inlets (Flared Inlets) <br /> <br />13-33 <br /> <br />Description . . <br /> <br />13-33 <br /> <br />Throat Control <br /> <br />13-35 <br /> <br />Face Control <br /> <br />13-35 <br /> <br />Standard Designs <br /> <br />13-37 <br /> <br />FALL Upstream of Inlet Face <br /> <br />13-37 <br /> <br />Slope-Tapered Inlets for Pipe Culverts <br /> <br />13-38 <br /> <br />Rectangular Side-Tapered Inlets for Pipe <br />Culverts <br /> <br />13-38 <br /> <br />Design Limitations <br /> <br />13-40 <br /> <br />Multibarrel Designs <br /> <br />13-40 <br /> <br />V. General Design Considerations . .. ... <br /> <br />13-41 <br /> <br />Highway Safety Aspects of Improved Inlets <br /> <br />13-41 <br /> <br />iii <br />