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<br />If') <br />~ <br />If' <br />C'~ <br /> <br />c <br /> <br />CONTENTS <br /> <br />SEC'I10N PAGE <br />Introductory Statement ..m............___..___.............. m................... ii <br />Engineering Organization During Construction..........__............................ vi <br />Foreword ............._............___. .....h.....................n........... .........n...._.............._...... vii <br /> <br />CHAPTER I-INTRODUCTION AND DECRIPTION <br />OF HYDRAULIC LABORATORIES <br /> <br />INTRODUCTION <br /> <br />1. History of spillway tests__.....___....___...m________.._______..____....... mH'hum',n__."'''_ 7 <br />2. Results of model tests_.......___......m._........___........................_....................__...... 10 <br />3. Model and prototype relations.......__...m.._......................................__............ 10 <br /> <br />HYDRAULIC LABORATORIES <br /> <br />4. Colorado State College laboratory................................................................ 15 <br />5. Bureau of Reclamation laboratory...__..__........__............___...........__......__......... 17 <br />6. Personnel .....__.....__................__...__.............__.........__.......__..................._____...__..... 18 <br /> <br />CHAPTER II-TESTS ON PRELIMINARY DESIGNS <br />OF SPILLWAYS <br /> <br />GLORY-HOLE SPILLWAY MODEL (C-1) <br />7. Construction of model...m................__.....__....................__._...__...__....__ .....__....... 19 <br />8. Results of te.ts.................................................................................................. 21 <br /> <br />SIDE-CHANNEL SPILLWAY WITH FREE CREST (C-2) <br />9. Design and construction of ModeI.....................................__......__.............__.. 22 <br />10. Results of visual observations.....__..........__....___...__......................__.._.__........... 24 <br />11. Measurements of flow conditions......__.............__.__.....__.........____................__.. 25 <br />12. Actual and theoretical conditions..__............__.........................__...........m....... 28 <br />13. Effect of guide vanes...................................................................................... 33 <br /> <br />SIDE-CHANNEL SPILLWAY WITH STONEY GATE <br />AND FREE CREST (C-3) <br /> <br />14. Design and construction of modeL...............h................................... 38 <br />15. Outline of tests......__.........__....__..h...._........__....__....____.....__......__..................__..... 39 <br />16. Normal operating conditions....__...........__.............__....___......__.........__.......___.... 40 <br />17. Flow over spillway cl'est..__....__...........__...........__.......__......__....__.....__h............ 44 <br />18. Flow tbrough Stoney gate.............................................................................. 44 <br />19. Interference of fiow.......................................................................................... 49 <br />20. Dentated baffles on channel fioor.................................................................. 52 <br />21. Conditions above and below gate.........__.....__.........__...._...._....__..........__...._.... 52 <br />22. Effect of channel slope.................................................... ............................... 54 <br />1 <br />