It works, a smaller rod would be more fun on the crooked because of the small size average, but those little redbands and their whitefish pals are scrappy. Floating line definitely. For winter fishing I like small mayfly imitations,midges,scuds,and tiny egg patterns, small attractor patterns work as well. Most of their food is pretty small and I find it most productive to nymph (bobber fish) this time of year, though I’ve caught some dry fly and soft hackle bites on sunny winter days.
If you aren’t familiar with fly patterns and all I highly suggest stopping by a fly shop on your way through so they can set you up with what you need. Concentrate on recreational access like campsites and such the first 7-8 miles below the dam, this section has the highest concentration of fish.
Good luck!