yes. fortunately, we have a great organization- The
Charles River Conservancy, which has taken on the lion's share of trail maintenance on the MUP I use to ride into Boston. They have volunteer days, which have a
waiting list! to work on brush clearing etc.
In addition to contributing to CRC with $ and volunteering. I trim overhanging branches on my own with some frequency (I'm a tall rider)
just realized that may read that I do it with my head!- but no, I carry a small multi-tool with a pretty good saw. I've also worked on sections to make them drain better by leaving early for work and carrying a small folding shovel.
I used to be shy about doing such things but after working with CRC for a while I got the sense that
responsible tending by individuals, while it could not be "officially approved", was perfectly welcome.