Hwy 16 bridge is the best place to put in below the dam, and really the only feasible location to launch a kayak.
It's currently flowing at 8,480 cfs, so I would not fish there. Way too much flow.
"Water is life's matter and matrix, mother and medium. There is no life without water." -Albert Szent-Gyorgyi
"No man ever steps in the same river twice, for it's not the same river and he's not the same man." - Heraclitus