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<br />EVALUATION OF AND DESIGN RECOMMENDATIONS FOR <br />DROP STRUCTURE IN THE DENVER METROPOLITAN AREA <br /> <br />T ABLE OF CONTENTS <br />(Continued) <br /> <br />Section <br /> <br />Title <br /> <br />Drop Selection. . . . . . . . . <br />Crest Approach Analysis . . . . . . . <br />Water Surface Profile Analysis for Drop <br />Structures . . . . . . . . <br />Seepage Analysis and Control. . . . . <br />Common Variables . . . . . . . . . . <br />VRR - VERTICAL RIPRAP DROP: UDFCD CRITERION, <br /> <br />19B2 . . . . . . . . . . . . . . . . . . . . . . . <br />SLR - SLOPING LARGE RIPRAP DROP PER SECTION X <br />GSB - GRaJTED SLOPING BOULDER DROP <br />BC- BAFFLE (APRON) CHUTE - USBR DESIGN. <br />VHB - VERTICAL HARD BASIN <br /> <br />XIII COST CONSIDERATIONS <br />INTRODUCTION. . . . <br />METHODS . . . . . . . <br />Evaluation Cases <br />Analysis Technique. <br />Maintenance Costs . <br />Present Worth Anal ysis . <br />COMPARISON RESULTS <br />CONCLUSIONS . . . . . . . <br /> <br />XIV DESIGN CONSIDERATIONS MATRIX <br /> <br />XV CONCLUSIONS, COURSE CORRECTIONS AND RESEARCH <br /> <br />NEEDS............ <br />DROP STRUCTURES ...... <br />Baffle (Apron) Chute Drops - BC <br />Vertical Riprap Drops - VRR <br />Vertical Hard Basin Drops - VHB <br />Sloping Rock Drops ...... <br />Grouted Sloping Boulder Drops - GSB <br />Sloping Concrete ......... <br />Other Types of Drop Construction. . <br />LOW FLOW EROSION CHECKS AND CONTROL MEASURES <br />TRICKLE CHANNELS . . . . . . <br />OTHER COMMENTS ON ROCK RIPRAP ........ <br /> <br />TOC-6 <br /> <br /> I <br /> I <br /> I <br />Pal~ I <br />XII-2 <br />XII-3 I <br />XII-3 <br />XII.4 I <br />XII.B <br />X 11.-9 I <br />XII-IS <br />X 11-20 <br />XII-U <br />XII-2B I <br />XIII..l <br />XIII..l I <br />XIII..l <br />X III.. 2 <br />XIII..4 <br />XIII..7 I <br />XIII-.9 <br />X 111-11 <br />XIII-24 I <br />XIV-.I <br /> I <br />XV-I II <br />XV-l <br />XV.l I <br />XV-I <br />XV-2 <br />XV-3 II <br />XV-S <br />XV-6 <br />XV-6 II <br />XV-7 <br />XV-7 <br />XV-B <br /> I <br /> I, <br /> I <br /> I <br />