I’d get on the upstream side where you have current and cast into the current. Let the bait sweep downstream and start to slowly retrieve as you make contact with the dam.
I would cast perpendicular to shore and as the bait hits 45 degrees start to work it back.
This method would work with pretty much any presentation from raps to plastics to live bait. Be prepared to lose some gear to snags, though.
Some guys will throw upstream and let baits work over the top of the dam…not sure that’s an option where you are.
I’d just start casting and use the current and structure to your benefit.