(OOr 



80 - 



60 - 



IT 



uj 40 



20 



■FLOODED PIPE 



M 



i 



gig 



SSJ: O' 



I 



i 



^ NONILUUMINATEO PIPE 

 E3 ILLUMINATED PIPE 



-|— PARTIALLY FULL— I 

 PIPE 



I 



! 



J 



15 

 15 



i5 

 m 



MS 



is 



Figure 7. — Percentages of Chinook, sockeye, andcoho salmon, and steelhead 

 trout that completed passage through flooded and partlyfuU 0.6-m.-diam- 

 eter pipe (82.3-m.-long) under illuminated and nonilluminated conditions 

 within the 45-minute time limit, 1964, Water velocity in flooded and partly 

 full pipe was 0.9 m.p.s. 



15.0 

 13,5 

 12.0 

 10.5 

 }^ 9.0 



Z 



i 7.5 



cc 



if 6.0 

 a. 



V) 



o: 4.5 



UJ 



t- 



UJ 



2 3.0 



1.5 



O 



1st 

 STRAIGHT 



^^NONILLUMINATED PIPE (N- 109) 

 E3 ILLUMINATED PIPE (N=I58) 



* 



Isl 

 BEND 



2d 

 STRAIGHT 



i 



20 

 BEND 



Figure 8. — Rate of passage (meters per minute) by salmon ana 

 trout through each section of the 82.3-m.-long0.6-m, -diameter 

 pipe under illuminated and nonilluminated conditions, at water 

 velocity of 0.9 m.p.s., June-September 1964. Rate of passage 

 is based only on fish for which there is complete sequence of 

 passage times through all five sections of pipe. 



15 



