I have never fished that far south toward the Dover bridge. There are alot of backwater areas off the river. You should be close to summer pool by then. Stake beds if you can find them, laydowns are in most creeks.Lots of submerged brush, stumps if you know where to look. Dyers creek, Blue creek and coming north Bards is good and Fox are great choices. Also if the lake level is good along with water temp you have miles of Buck brush in Bards or Crooked creek . these are hot when conditions are right. Crappie should be shallow by then . I fish 90 percent with hair jigs or roadrunners . Any color jig is good as long as its chartruese and black. I have fished there 30 years and love it! Good luck