Silver maple decline?
I'm just seeing if there is anything I can do to help an old silver maple out. The house was built in 1966, so it canÃ¢ÂÂt be older than that. I've seen old photos. Some changes around it have happened gradually over the last five years, and I'm worried they might stress the big guy out. In 2008 my neighbor installed a fence next to the tree. I continued the fence in 2009, digging more holes for posts. In 2009 my neighbor also installed a sandstone patio next to the tree. In 2011 I made a bed around it. Didn't add that much dirt, as the yard slopes so the ground was naturally lower in front of it. Then in 2012 I built a shed on deck blocks (still needs doors) and a little paver patio next to it. I get that it's not ideal but I'm on a small city lot. If I stay here for life I'm sure I'll regret it, however that's an issue for another time. It's also next to another neighborÃ¢ÂÂs garage, but the garage was there before the tree so I gather it adapted to it.
Myself, the neighbor, and tree are all fighting for space on small city lots. I've never had a yard or trees before so I am ignorant. However I am now trying to be much more conscious of the tree and learn. I did notice some branch dieback. Not huge branches, but from what I understand decline in trees is gradual. If there is something I can do now I'd like to now.
It appears healthy to me. Canopy seems thick, plenty of helicopters every spring and leaves in fall. I'm constantly pruning offshoots from the base to as far up as I can reach. Any help/opinions would be appreciated. Thank you for looking at the pictures below, reading, and your time.