Drove to 650m elevation in a Ford Escape. We could've passed a couple of the ditches after that, but road narrowed and there weren't many places to park. The big deactivation mentioned below is still there as well. Someone has cut and flagged a trail through the alders until 49.23526, -122.08124.
Thanks for the update Erin! I've added in an impasse icon based roughly on where you and Sean reported the waterbar. Let me know if it's not in the right spot