I'm not the best berm builder, but whoever built this trail was pretty hopeless. Did what I could to fix the berms they made. They ride well uphill now which is the direction most are riding this trail, but they're still awkward/tight downhill.
Some before & after of 2 berms. First one was the worst on the trail:
This switchback was a mess. Vertical outer wall and a narrow trench with high inner berm that your rear wheel would get hung up on. You can see a second berm attempt behind that was abandoned.
I cut down the inner berm, angled the outer berm and moved all the dirt to the outer berm. Cut down the upper part a bit.
Upper view. I busted up the abandoned berm too. Once some brush grows on it next spring it shouldn't be visible.
Switchback above that wasn't as bad but still had an awkward surface that I fixed.
Both of them are still too tight to ride nicely downhill. May need to realign further
An example of the ledging I've mentioned. Trail was built with a narrow bench that was too off camber and people keep riding off the uncompacted edge forming a ledge. Later riders all seem to end up on the lower ledge due to target fixation or general ineptitude. Trail keeps widening as the tread creeps down the slope. This also happens every time a cobble pokes out of the tread. People in Socal seem to have rockophobia, always riding around the most trivial rock and usually on the downslope side.
And a final section with the ledges removed. There is one more long section that is pretty bad but that will have to wait til the next rain storm to fix. These sections will look a lot nicer when grass grows in next spring.
