CONTENTS 



Page 



Introduction 1 



Equipment and procedure 2 



Laboratory 2 



Collection pool 2 



Test area 2 



Flow introduction pool 2 



Lighting 2 



Ice Harbor fishway design 3 



Test conditions ^ 



Weir crest design 4 



Hydraulic conditions 4 



Observation facilities 6 



Test procedure ^ 



Types of tests "7 



Release of fish 7 



Timing of fish 8 



Comparison of passage tinnes 8 



Results 9 



Individuals 9 



Chinook 9 



Steelhead 9 



Sockeye 9 



Groups 9 



Chinook 9 



Steelhead 10 



Fish capacity trials 10 



Effect of weir crest design 11 



Weir baffle design 14 



Effect of flow condition 14 



Chinook 14 



Steelhead I'? 



Weir overfall vs. orifice passage 17 



Comparison of performance in 1-on-lO- and l-on-l6- 



slope fishways 17 



Summary and conclusions 17 



Literature cited 20 



111 



