Willy from Arlington, VA on 3/10/2016 10:12:59 AM:
I biked form DC to Pittsburgh in September.
I did it in 6 days.
Most days were around 60miles per day.
Going toward Pittsburgh you may want to consider doing 44 miles from Cumberland to Rockwood PA That is because the trail from Cumberland to Deal is all up a 1.5 percent grade. You will find yourself going 6-7 mph going up the grade instead of the 10-12 mph on regularly flat terrain elsewhere.