Professor: I’ve had good luck with white bass the last couple weeks around 494 (more upstream than down). The area in front of the Pigs Eye discharge channel is popular for white bass, though my fish of late have been coming around wingdams. In general, these fish are mobile and move around. They can be just about anywhere, but other places to check include wingdams, rip rap shorelines, current brakes, etc. They also can be “loosely” associated with the structure, meaning they can drift around. You definately want to move and cover water. One of the easiest ways to find them is to look for surface activity — actually seeing fish chasing bait. The more fish you see in a short amount of time the better, and if you find an area a lot of action pull up and give it a try. I prefer to cast topwater baits and watch them slash at the bait — but just about anything will work (small cranks, twister tails, spinners,etc).
If you’re not seeing fish on the surface, don’t be afraid to cast specific spots (such as wing dams) or troll adjacent areas. Sometimes the fish don’t show on the surface, but you can find a group of fish in an area.
My approach is usually to chase other fish (like walleyes), then have a rod rigged up so when I come upon a feeding school you can cash in. You’ll also catch a number of incidental white bass when using artificials for walleyes.