I was at Chain Bridge for a couple hours yesterday morning trying for shad without success. I didn't see anyone else catch shad either. However, just about everything else was caught.
I watched one person on the VA side fishing a sabiki rig pulling in herring 6 to 8 at a time. Another person was just downstream from me with about 20 lbs of catfish on a stringer. While trying for shad I caught crappie, a 14" largemouth bass and lots of white perch to 10" and striped bass to 13".