How dry should the soil be before considering doing earthworks like swales? Does regular spring rains rule out being able to do swale construction until the heat of the summer? I don't want to wait, but have been persuaded that the ground must be dry.
I am using a Kubota back hoe. I should have mentioned that.
I went ahead and dug the swales. It was only about a week of drying weather after a wet mushy winter. The swales with less catchment, were much easier to dig. There was minimum ground damage (besides some compaction). The only real issue I had is the swale berm is much harder to to shape when the ground is wet and clumpy. After a few days of the berm drying out, I came back, and shaping it was much easier. Thanks for the response!!