I can't be of much help down there then for bank fishing. I do have a friend that fished down there last week though, and they did real well. Maybe someone else here knows some good bank access spots for you to try. Good luck.
Just below the mouth of the Illinois, on either side of the river at Agnes is a good hole.
The South side seems to be the best bet for Salmon while I prefer the North side for half pounders. On down below Hotel Riffle on the North Side is good for Salmon.
The bank at Cougar Lane is good Steelhead fishing.
You might check out the lower mile or two of the Illinois. In past years, when there is a water temp differential between the two rivers, both salmon and steelhead would move temporarily into the Illinois. You'll have to crawl up to the water...it is gin clear. I've caught them on flies before...then you have to rest the pool. I've often thought that a bobber and eggs...or jig woould be a good way to catch them in the slower pools