I went to the Middlesex Fells today. I moved the larger debris that I couldn't ride over and was physically able to move. I took photos of all the things I couldn't move.
Here's the GPS track with photos.
post Irene Fells - Mountain biking trip | EveryTrail

Bottom line, a lot of stuff fell in the Fells. The debris makes it hard to recognize where the trail goes at places and if you like roots, they are a lot more prevalent now.