Fishing around White Haven, especially down around Tannery can be really good. As you go farther downstream it can get even better with the influx of cold trib water.
Be sure to check out the weekend releases for whitewater once we get into May. These generally run from midnight and end at noon. You can definitely fish the eve's after the releases...and the fishing can be really good, as the fish generally are looking up. It is tough to wade though when the water is gushing for the ww releases.
The Francis E. Walter Flow Management Plan 2007 Whitewater Release Schedule
May 12,13
May 26, 27
June 9,10
June 23, 24
July 7, 8
July 21, 22
August 4, 5
August 18, 19
September 1, 2
September 15, 16
September 29, 30
http://www.nap.usace.army.mil/Projects/FEWalter/index.htm