Getting a cover crop planted asap will help with erosion. I generally do
earthworks in october, when i can get annual rye sprouted in a week.
I read about using plant rows as an erosion filter. In my area that may be a line of blackberries or asparagus, or both. It could trap sediment and start building up soil. Asparagus can take additional soil on top year after year. Maybe plant it shallower than the normal.