Re: Salmonfly hatch on the Deschutes...
I've never fished your spot Vans, but I deal with high water often. It's always a let down when you realize that everything you thought you knew and all that you had planned in your mind prior to reaching the destination can evaporate so quickly.
The only advice I will offer is to have a sink tip or lead head that you can go to when you run into conditions like I see in your photos. Tie a big feather wing streamer or whatever your selection will offer in a size 2 X long shank and start swinging as deep as you can get it to run. If the deep approach leads nowhere a marabou muddler or a Sofa Pillow, skidding on the surface is the last hope.